Skip to main content

Home/ SciByte/ Group items tagged Asteroid

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
Mars Base

Asteroid Mining is Possible for $2.6 Billion | How to Mine Asteroids | Space.com - 0 views

www.space.com/-mining-feasibility-study.html

sciByte44 Asteroid AsteroidMining

shared by Mars Base on 25 Apr 12 - No Cached
  • mining asteroids
  • new company Planetary Resources, Inc. plans to do
  • The in-depth study of the feasibility of asteroid mining was prepared for the Keck Institute for Space Studies (KISS) at the California Institute of Technology in Pasadena.
  • ...17 more annotations...
  • Planetary Resources is still years away from actually snatching up an asteroid and staking a cosmic claim
  • What the study did was show that, for the first time in history, this was now feasible using technology available in this decade
  • it appears feasible to identify, capture and return close to Earth an entire asteroid that is roughly 23 feet (7 meters) wide. This so-called near-Earth asteroid (NEA) would weigh in the neighborhood of 500 tons
  • According to the study
  • Placing a 500-ton asteroid in high lunar orbit would provide a unique, meaningful and affordable destination for astronaut crews in the next decade
  • This disruptive capability would have a positive impact on a wide range of the nation’s human space exploration interests. It would provide a high-value target in cislunar space that would require a human presence to take full advantage of this new resource.
  • Such a venture represents a new synergy between robotic and human missions in which robotic spacecraft retrieve significant quantities of valuable resources for exploitation by astronaut crews to enable human exploration farther out into the solar system.
  • Water or other material extracted from a captured volatile-rich near-Earth asteroid could be used to provide affordable spacecraft shielding against galactic cosmic rays. The extracted water could also be used for propellant to transport a shielded habitat.
  • This undertaking could jump-start an entire in situ resource utilization industry. The availability of a multi-hundred-ton asteroid in lunar orbit could also stimulate the expansion of international cooperation in space as agencies come together to determine how to sample and process raw material from an asteroid.
  • may someday have to deflect a much larger near-Earth object
  • the idea of exploiting the natural resources of asteroids dates back over 100 years.
  • the feasibility of this retrieval concept is made possible by three key developments.
  • Firstly, the ability to discover and characterize an adequate number of sufficiently small near-Earth asteroids for mining.
  • Secondly, there is evolving ability to implement sufficiently powerful solar electric propulsion systems to enable transportation of the captured asteroid.
  • Lastly, the proposed human presence in cislunar space in the 2020s both enables exploration and exploitation of the returned near-Earth asteroid.
  • NASA's findings are put in the public domain, as in the earlier cases of communication, weather and navigation satellites, for use by competing commercial enterprises
  • companies can then work to generate revenues — and pay taxes — while lowering the cost of access to resources for the good of all
Mars Base

NASA to Reveal Vesta Discoveries by Dawn Asteroid Probe | Space.com - 0 views

www.space.com/discoveries-nasa-thursday.html

scibyte46 Asteroid Vesta dawn

shared by Mars Base on 09 May 12 - No Cached
  • NASA will showcase the latest discoveries from an asteroid probe orbiting the huge space rock Vesta on Thursday (May 10) in a press conference for reporters and the general public.
  • will present a new analysis of Vesta based on the latest observations from NASA's Dawn spacecraft
  • Dawn spacecraft launched in 2007 on a mission to visit two huge space rocks in the asteroid belt that orbits the sun between the orbits of Mars and Jupiter.
  • ...9 more annotations...
  • Dawn arrived in orbit around Vesta in July 2011
  • Vesta is the brightest asteroid in the solar system and second most massive object in the asteroid belt
  • Last month, NASA extended Dawn's stay at Vesta by an extra 40 days to give the spacecraft more time to study the asteroid
  • spacecraft has revealed that many new details about Vesta
  • it is rich in iron and magnesium
  • experiences chilly temperatures that range from minus 10 degrees Fahrenheit (minus 23 degrees Celsius) in the sunlight, to minus150 degrees F (minus 100 degrees C) in shadowed areas.
  • Scientists think Vesta is a 4.5 billion-year-old relic left over from the formation of the solar system
  • In August the probe will move on to the Texas-size Ceres, the largest object in the asteroid belt and a space rock so large it is considered a dwarf planet.
  • expected to arrive at Ceres in February 2015
Mars Base

Interesting Facts About Asteroids - 0 views

www.universetoday.com/...eresting-facts-about-asteroids

scibyte44 AsteroidMining Asteroid

shared by Mars Base on 25 Apr 12 - No Cached
  • D class asteroids: They are also known as Trojan asteroids of Jupiter and are dark and carbonaceous in composition.
  • C class asteroids: They are found in the Earth’s outer belt and are darker and more carbonaceous than the ones found in the S class.
  • S class asteroids: They are found in the Earth’s inner belt, closer to Mars and are composed of mostly stone and iron.
  • ...2 more annotations...
  • V class asteroids: They are a far-out group of asteroids that follow a path between the orbits of Jupiter and Uranus, and are made of igneous, eruptive materials.
  • Asteroid composition has been classified in the following way:
Mars Base

Telescope spies water plumes on dwarf planet Ceres - 0 views

phys.org/...spies-plumes-dwarf-planet.html

scibyte117 Asteroid Ceres

shared by Mars Base on 23 Jan 14 - No Cached
  • Scientists
  • have made the first definitive detection of water vapor on the largest and roundest object in the asteroid belt, Ceres.
  • Plumes of water vapor are thought to shoot up periodically from Ceres when portions of its icy surface warm slightly
  • ...26 more annotations...
  • Ceres is classified as a dwarf planet, a solar system body bigger than an asteroid and smaller than a planet.
  • "This is the first time water vapor has been unequivocally detected on Ceres or any other object in the asteroid belt and provides proof that Ceres has an icy surface and an atmosphere,"
  • Michael Küppers of ESA in Spain
  • NASA's Dawn mission, which is on its way to Ceres now after spending more than a year orbiting the large asteroid Vesta
  • Dawn is scheduled to arrive at Ceres in the spring of 2015, where it will take the closest look ever at its surface.
  • will map the geology and chemistry of the surface in high resolution
  • International Astronomical Union, the governing organization responsible for naming planetary objects
  • Ceres was known as the largest asteroid in our solar system
  • reclassified Ceres as a dwarf planet because of its large size. It is roughly 590 miles (950 kilometers) in diameter
  • When it first was spotted in 1801, astronomers thought it was a planet orbiting between Mars and Jupiter
  • Scientists believe Ceres contains rock in its interior with a thick mantle of ice that, if melted, would amount to more fresh water than is present on all of Earth
  • The materials making up Ceres likely date from the first few million years of our solar system's existence and accumulated before the planets formed.
  • Until now, ice had been theorized to exist on Ceres but had not been detected conclusively
  • far-infrared vision to see, finally, a clear spectral signature of the water vapor. But
  • did not see water vapor every time it looked
  • spied water vapor four different times, on one occasion there was no signature.
  • what scientists think is happening
  • when Ceres swings through the part of its orbit that is closer to the sun, a portion of its icy surface becomes warm enough to cause water vapor to escape in plumes
  • a rate of about 6 kilograms (13 pounds) per second
  • When Ceres is in the colder part of its orbit, no water escapes
  • The strength of the signal also varied over hours, weeks and months
  • water vapor plumes rotating in and out of Herschel's views as the object spun on its axis
  • This enabled the scientists to localize the source of water to two darker spots on the surface of Ceres
  • previously seen by NASA's Hubble Space Telescope and ground-based telescopes. The dark spots might be more likely to outgas because dark material warms faster than light material.
  • "The lines are becoming more and more blurred between comets and asteroids," said Seungwon Lee of JPL
  • Paul von Allmen, also of JPL. "We knew before about main belt asteroids that show comet-like activity, but this is the first detection of water vapor in an asteroid-like object."
Mars Base

Research group suggests Chicxulub crater may have been caused by binary asteroids - 0 views

phys.org/...b-crater-binary-asteroids.html

scibyte81 Chicxulub

shared by Mars Base on 05 Feb 13 - No Cached
  • A team of researchers from the U.K. and Australia has published a pape
  • suggesting that the crater Chicxulub, off the coast of Mexico, may have come about due to the impact of binary asteroids
  • The crater is thought by many scientists to be evidence of an asteroid strike that led to the extinction of the dinosaurs.
  • ...15 more annotations...
  • space scientists estimate that as many as 15 percent of those observable are binaries
  • This observation has caused scientists problems
  • due to the
  • evidence of binaries striking the Earth – as few as 2 to 4 percent
  • the team
  • suggests that many of the craters evident on the surface of the Earth, and believed to have been caused by a single asteroid, may in fact have been caused by binaries
  • a binary could cause just one crater if the two asteroids were close enough together when they struck.
  • suggest such craters would likely have a peanut shape, or have one side distorted
  • came to these conclusions after building computer simulations that showed asteroids hitting the earth
  • Some of the craters that resulted were oblong, or irregularly shaped, which they say, means the same could be true of real craters here on Earth
  • that the crater has some asymmetries that could be explained by a binary strike
  • If that were the case, they further suggest it likely that the combined size of the asteroid would have been roughly the same as the calculated size of a single entity
  • a combined diameter of 7 to 10 k
  • The crater left behind has a diameter of approximately 180 km, which means, the researchers say, that twin asteroids could have been as far apart as 80 km and still produced a single crater.
  • scientists will have to take a new look at other existing craters to try to determine if they too are possibly the result of binary strikes and if so, recalculate their number
Mars Base

Photos of Asteroid Vesta Reveal Bright Surprises | Dawn Spacecraft | Space.com - 0 views

www.space.com/-vesta-surprising-surface.html

scibyte39 Vesta MarMedia

shared by Mars Base on 21 Mar 12 - No Cached
  • amazing new photos
  • reveal strange features never-before-seen on an asteroid
  • Dawn spacecraft highlight odd, shiny spots that are nearly twice as bright as other parts of the asteroid
  • ...9 more annotations...
  • suggesting it is original material left over from the space rock's birth 4 billion years ago
  • Vesta is one of the largest and brightest objects in the main asteroid belt
  • bright material originates from Vesta and has undergone little change since the formation of Vesta over 4 billion years ago
  • photos show surprisingly bright spots all over Vesta
  • bright areas range from large spots (around several hundred feet across) to simply huge, with some stretching across 10 miles (16 kilometers) of terrain
  • [Video: Vesta — Asteroid or Dwarf Planet?]
  • Astronomers have known about variations in Vesta's brightness for some time
  • Photos taken by the Hubble Space Telescope before Dawn arrived at the asteroid also revealed the bright patches.
  • scientists suspect the bright patches on Vesta were exposed during violent collisions with other space rocks
Mars Base

Students: Asteroid 1999 RQ36 Needs a New Name! - 0 views

www.universetoday.com/...oid-1999-rq36-needs-a-new-name

scibyte62 Asteroid

shared by Mars Base on 06 Sep 12 - No Cached
  • NASA and the Planetary Society are giving students worldwide the opportunity to name an asteroid
  • an upcoming NASA mission will return samples of this asteroid to Earth
  • Origins-Spectral Interpretation-Resource Identification-Security-Regolith Explorer (OSIRIS-REx) will be heading to an asteroid, currently named (101955) 1999 RQ36
  • ...10 more annotations...
  • Scheduled to launch in 2016
  • NASA also is planning a crewed mission to an asteroid by 2025
  • competition is open to students under age 18 from anywhere in the world
  • Each contestant can submit one name, up to 16 characters long
  • must include a short explanation and rationale for the name
  • Submissions must be made by an adult on behalf of the student. The contest deadline is Sunday, Dec. 2, 2012
  • sponsored by the Massachusetts Institute of Technology’s (MIT) Lincoln Laboratory in Lexington; and the University of Arizona in Tucson
  • A panel will review proposed asteroid names. First prize will be awarded to the student who recommends a name that is approved by the International Astronomical Union Committee for Small-Body Nomenclature
  • asteroid was discovered in 1999
  • received its designation of (101955) 1999 RQ36 from the Minor Planet Center, operated by the Smithsonian Astrophysical Observatory
Mars Base

Crowdsourcing the Hunt for Potentially Dangerous Asteroids - 0 views

www.universetoday.com/...otentially-dangerous-asteroids

scibyte47 Asteroid crowdsourcing

shared by Mars Base on 16 May 12 - No Cached
  • new partnership between the European Space Agency and the Faulkes Telescope Project, which will encourage amateur astronomers to look for asteroids
  • providing educational opportunities that will allow students to discover potentially dangerous space rocks, too.
  • ESA’s Space Situational Awareness (SSA) program is part of an international effort to be on the lookout for space hazards – not only asteroids but disruptive space weather and space debris objects in Earth orbit
  • ...14 more annotations...
  • asteroids pose a problem
  • hard to see because they can be very dark
  • can approach rather too close before anyone sees them
  • often spotted only once and then disappear before the discovery can be confirmed.
  • ESA is turning to schools and amateur astronomers to help as part of Europe’s contribution to the global asteroid hunt
  • UK’s Faulkes Telescope Project will become the latest team to formally support the SSA program
  • Spain’s La Sagra Sky Survey, operated by the Observatorio Astronomico de Mallorca, began helping SSA earlier this year
  • The Faulkes project has two telescopes where you can sign up for observing online: Haleakala, Hawaii
  • and Siding Spring, Australia
  • For European students, collaborating on exciting ESA activities and possibly detecting new NEOs is very appealing, as its engagement with one of the world’s great space agencies doing critical scientific work.”
  • While the Faulkes project focuses on schools
  • amateurs will be able to freely access the data archives
  • archives are also open to all, and they work
  • Since starting their SSA-sponsored survey work in January 2010, the TOTAS amateur astronomers have identified hundreds of asteroid candidates, over 20 of which have been confirmed and named.
Mars Base

Battered Asteroid Lutetia a Rare Relic of Earth's Birth | Asteroids & Comets | Earth Fo... - 0 views

www.space.com/eroid-lutetia-earth-birth.html

scibyte21 Lutetia

shared by Mars Base on 11 Nov 11 - No Cached
  • The oddball asteroid Lutetia is a rocky remnant of the material that formed Earth, Venus and Mercury about 4.5 billion years ago, a new study suggests
  • Its composition suggests it likely formed close to the sun in the same cloud of material that eventually coalesced into the inner solar system's rocky planets.
  • then it was booted out to its current location in the main asteroid belt between Mars and Jupiter, most likely after a run-in with a young planet
  • ...5 more annotations...
  • Lutetia, which is about 62 miles (100 kilometers) across
  • Lutetia's spectrum matched that of one particular class of meteorite called enstatite chondrites, which are known to date from the early solar system
  • Enstatite chondrites are thought to have formed close to the sun and to have served as building blocks for the rocky planets, especially Earth, Venus and Mercury, researchers said.
  • The implication is that Lutetia also originated close to the sun, not out in the main asteroid belt where it currently sits
  • Lutetia's birthplace makes the space rock pretty special. Astronomers have estimated that just 2 percent of the bodies that formed where it likely did ended up in the main asteroid belt.
Mars Base

Curiosity Captures First Ever Asteroid Images from Mars Surface - 0 views

www.universetoday.com/...eroid-images-from-mars-surface

scibyte128 Curiosity

shared by Mars Base on 25 Apr 14 - No Cached
  • surface of the Red Planet during night sky imaging.
  • The Curiosity rover has captured the first images of asteroids even taken by a Human probe from the
  • two asteroids caught in the same night time pointing on the Red Planet. Namely, asteroids Ceres and Vesta.
  • ...9 more annotations...
  • snapped by Curiosity’s high resolution Mastcam camera earlier this week on Sunday, April 20, 2014
  • whilst she was scanning about during daylight for her next drilling target at “The Kimberley” waypoint she pulled into at the start of this month.
  • Ceres and Vesta appear as streaks since the Mastcam image was taken as a 12 second time exposure.
  • “This imaging was part of an experiment checking the opacity of the atmosphere at night in Curiosity’s location on Mars, where water-ice clouds and hazes develop during this season,” said camera team member Mark Lemmon
  • “The two Martian moons were the main targets that night, but we chose a time when one of the moons was near Ceres and Vesta in the sky.”
  • Ceres, the largest asteroid, is about 590 miles (950 kilometers) in diameter. Vesta is the third-largest object in the main belt and measures about 350 miles (563 kilometers) wide.
  • the tinier of Mars’ moons, Deimos, was also caught in that same image.
  • Mars largest moon Phobos as well as massive planets Jupiter and Saturn were also visible that same Martian evening, albeit in a different pointing.
  • The two asteroids and three stars would be visible to someone of normal eyesight standing on Mars.
Mars Base

Asteroid 2013 UQ4 Suddenly Becomes a Dark Comet with a Bright Future - 0 views

www.universetoday.com/...ark-comet-with-a-bright-future

scibyte130

shared by Mars Base on 09 May 14 - No Cached
  • On October 23, 2013,  astronomers with the Catalina Sky Survey picked up a very faint asteroid with an unusual orbit more like a that of a comet than an asteroid
  •  At the time 2013 UQ4 was little  more than a stellar point with no evidence of a hazy coma or tail that would tag it as a comet
  • On May 7,
  • ...19 more annotations...
  • remote telescope located in Siding Spring, Australia to take photos of 2013 UQ4 shortly before dawn in the constellation Cetus.
  • The asteroid had grown a little fuzz, making the move to comethood
  • now displays a substantial coma or atmosphere
  • . No tail is visible yet
  • it’s still bright enough to see in a 12-inch telescope under dark skie
  • Assuming the now renamed C/2013 UQ4 continues to spout dust and water vapor, it should brighten to magnitude +11 by month’s end as it moves northward across Pisces and into a dark morning sky
  • Perihelion occurs on June 5 with the comet reaching magnitude +8-9 by month’s end
  • Peak brightness of 7th magnitude is expected during its close approach of Earth on July 10 at 29 million miles (46.7 million km).
  • should be a great summer comet, plainly visible in binoculars from a dark sky
  • at the rate of some 7 degrees per night! That’s 1/3 of a degree per hour or fast enough to see movement through a telescope in a matter of minutes when the comet is nearest Earth
  • belongs to a special category of asteroids called damocloids
  • that have orbits resembling the Halley-family comets with long periods, fairly steep inclinations and highly eccentric orbits (elongated shapes)
  • Damocloids are thought to be comets that have lost all their fizz.
  • their volatile ices spent from previous trips around the sun, they stop growing comas and tails and appear identical to asteroids
  • Occasionally, one comes back to life. It’s happened in at least four other cases and appears to be happening with C/2013 UQ4 as well.
  • Studies of the comet/asteroid’s light indicate that
  • is a very dark but rather large object some 4-9 miles (7-15 km) across.
  • It’s estimated that
  • takes at least 500 years to make one spin around the sun
Mars Base

Swift Satellite Captures Asteroid 2005 YU55′s Tumbling Flyby - 0 views

www.universetoday.com/...roid-2005-yu55s-tumbling-flyby

scibyte21 YU55

shared by Mars Base on 11 Nov 11 - No Cached
  • The Swift Telescope – better known for its study of high-energy outbursts and cosmic explosions – was able to observe the flyby of 2005 YU55
  • Swift’s ultraviolet and X-ray capability gives scientists a unique perspective on comets and asteroids
  • This isn’t the first time Swift has made observations of passing comets and asteroids
  • ...6 more annotations...
  • the spacecraft has observed ten asteroids, including Vesta
  • The 27-minute-long image was effectively sliced into short 10-second-long exposures, which then were combined into a movie
  • the team trained the spacecraft’s optics at two locations along the asteroid’s predicted path and let it streak through the field
  • The challenge with 2005 YU55 was its rapid motion across the sky, which was much too fast for Swift to track
  • The result is a movie of 2005 YU55 at ultraviolet wavelengths unobtainable from ground-based telescopes
  • this movie is a treasure trove of data that will help them better understand how this asteroid is put together, information that may help make predictions of its motion more secure for centuries to come
Mars Base

Send Your Names to an Asteroid, NASA Says - 0 views

www.scienceworldreport.com/...d-on-osiris-rex-spacecraft.htm

scibyte116 Asteroid

shared by Mars Base on 18 Jan 14 - No Cached
  • NASA invited the public to submit their names that will be engraved on a microchip aboard a spacecraft that will head to the 1,760-foot-wide asteroid.
  • The spacecraft will be sent to the asteroid where it will collect about two ounces of surface material and return with it to Earth in a sample-return capsule in 2023
  • submit their names online before September 30 at 'Message to Bennu.'
  • ...5 more annotations...
  • your name not just stays up there for 500 days but will remain in space even after the spacecraft returns the capsule to Earth.
  • Those who have submitted their names can download and print a certificate documenting their participation in the OSIRIS-REx mission
  • Participants who have registered their names and who 'follow' or 'like' the asteroid mission on Facebook and Twitter will get notifications on the status of their name in space from the time it is launched and until the samples are returned to Earth in 2013.
  • The aim of the OSIRIS-Rex mission is to address the basic questions on the composition of the early solar system.
  • Once the samples return to the Earth, the spacecraft will be placed into a long term solar orbit around the sun, along with the microchip on which the names are engraved.
Mars Base

Asteroid's troughs suggest stunted planet - 0 views

phys.org/...id-troughs-stunted-planet.html

scibyte65 Vesta

shared by Mars Base on 27 Sep 12 - No Cached
  • Scientists have been trying to determine the origin of these unusual troughs since their discovery just last year
  • new analysis supports the notion that the troughs are faults that formed when a fellow asteroid smacked into Vesta's south pole. The research reinforces the claim that Vesta has a layered interior, a quality normally reserved for larger bodies, such as planets and large moons.
  • ggest of those troughs, named Divalia Fossa, surpasses the size of the Grand Canyon by spanning 465 kilometers (289 miles) long, 22 km (13.6 mi) wide and 5 km (3 mi) deep
  • ...20 more annotations...
  • The complexity of their formation can't be explained by simple collisions
  • New measurements
  • taken by NASA's Dawn spacecraft last year
  • indicate that a large collision could have created the asteroid's troughs
  • would only have been possible if the asteroid is differentiated – meaning that it has a core, mantle and crust
  • By saying it's differentiated, we're basically saying Vesta was a little planet trying to happen
  • previous research has found signs of igneous rock on Vesta, indicating that rock on Vesta's surface was once molten, a sign of differentiation
  • If the troughs are made possible by differentiation, then the cracks aren't just troughs, they're graben
  • graben is a dip in the surface that forms when two faults move apart from each other and the ground sinks into the widening gap
  • Vesta's troughs have many of the qualities of graben
  • observations indicate that Vesta is also unusually planet-like for an asteroid in that its mantle is ductile and can stretch under a lot of pressure
  • not yet fully convinced that Vesta's troughs are graben
  • There are other qualities of Vesta that could be clues to how the troughs formed
  • unlike the larger asteroid Ceres, Vesta is not classified as a dwarf planet because the large collision at its south pole knocked it out of its spherical shape
  • if Vesta has a mantle and core, that would mean it has qualities often reserved for planets, dwarf planets and moons—regardless of its shape
  • believes the south pole collision knocked Vesta into its current speedy rate of rotation about its axis of about once per 5.35 hours
  • may have caused the equator to bulge outward so far and so fast that the rotation caused the troughs, rather than the direct power of the impact
  • enigma why Vesta rotates so quickly
  • Dawn has already left to explore Ceres, so all the data it will retrieve on Vesta is in hand
  • scientists will continue to sort that data out and improve on computer simulations of Vesta's interior
Mars Base

Space Telescope Crowdfunding Project Raises $167,000 | Space.com - 0 views

www.space.com/e-telescope-raises-167000.html

scibyte96 CrowdSourcing

shared by Mars Base on 30 May 13 - No Cached
  • A commercial asteroid-mining company aiming to launch a crowdfunded space telescope raised more than $200,000 on the first day of its campaign
  • Planetary Resources, a private venture aiming to mine near-Earth space rocks
  • announced
  • ...10 more annotations...
  • May 29) that it would build and launch a space telescope for public use if it could raise at least $1 million in 33 days.
  • The telescope will be a twin copy of the Arkyd spacecraft the company is developing to detect, track and study asteroids in preparation for its mining mission
  • A test version of the spacecraft is set for its maiden trial flight in April 2014, while the crowdfunded model would launch in early 2015
  • public backers would use it to study celestial objects of their choice
  • also have the option of sponsoring research projects at schools, universities or museums that could use the instrument.
  • The telescope will also take
  • self portraits that show the telescope in orbit, with a user-submitted photo displayed on the instrument's screen
  • A camera mounted on the hull of the spacecraft will snap the photo.
  • Already more than 200 backers have ordered selfies for $25 and above.
  • But if the crowdfunding campaign fails to reach its $1 million goal by June 30, the company will receive none of the money it has raised
Mars Base

45 meter Asteroid to Skirt Very Near Earth on Feb 15 - 0 views

www.universetoday.com/...kirt-very-near-earth-on-feb-15

scibyte82 NearEarthObject

shared by Mars Base on 13 Feb 13 - No Cached
  • Friday (Feb. 15)
  • a space rock roughly half a football field wide skirts very close by Earth
  • well inside the
  • ...11 more annotations...
  • expensive communications and weather satellites that ring around us in geosynchronous orbit
  • no possibility of an Earth impact
  • altitude of 27,700 kilometers (17,200 miles). That is some 8000 km (5000 miles) inside the ring of geosynchronous satellites
  • if an asteroid the size of 2012 DA14 fell to Earth, the impact effect would be similar to the 1908 Tunguska event in Siberia
  • the K-T event that caused the mass extinction of the dinosaurs some 65 million years ago was caused by an asteroid about 10 km (6 mi) in diameter
  • no danger to the ISS crew and apparently they won’t have any chance to observe it.
  • ISS is not positioned right for observations
  • “No NASA space-based assets will be making measurements
  • asteroid is moving to fast
  • radar astronomers do plan to take images around eight hours after the flyby using the Goldstone antenna in California’s Mojave Desert
  • 2012 DA 14
Mars Base

Asteroid Flyby: How Students Helped World See Giant Space Rock 2005 YU55 | Near-Earth O... - 0 views

www.space.com/yu55-earth-flyby-students.html

students giant space rock scibyte21

shared by Mars Base on 10 Nov 11 - No Cached
  • asteroid 2005 YU55
  • The Clay Center Observatory in Brookline, Mass., tracked 2005 YU55 with its 25-inch
  • webcast the resulting images live around the world
  • ...2 more annotations...
  • three high school kids from Brookline's Dexter School were in charge of making it happen
  • There are some advisers who are helping us if we run into any problems. But overall, it is student-based and student-run
Mars Base

Consolation Prize for Phobos-Grunt? Experts Consider Possibilities for Sending Spacecra... - 0 views

www.universetoday.com/...spacecraft-to-moon-or-asteroid

scibyte23 Phobos-Grunt

shared by Mars Base on 19 Nov 11 - No Cached
  • Phobos-Grunt could be sent to orbit the Moon
  • or may be even an asteroid
  • Theoretically, Grunt’s lander could set down on any celestial body with a gravitational force similar to that of Phobos
  • ...3 more annotations...
  • If any such asteroid candidate exists
  • return capsule back to Earth might be utilized to deliver a sample of the asteroid
  • November 18
Mars Base

Russian Meteor Not Related to Asteroid Flyby, NASA Confirms - 0 views

www.universetoday.com/...o-asteroid-flyby-nasa-confirms

scibyte82 RussianMeteor NearEarthObject

shared by Mars Base on 16 Feb 13 - No Cached
  • February 15, 2013
  • The meteor that streaked over the skies of Russia
  • not related to the asteroid that
  • ...2 more annotations...
  • whiz past Earth later today, (Feb.15
  • the trajectory of the Russian meteorite was significantly different than the trajectory of the asteroid 2012 DA14, making it a completely unrelated object
Mars Base

Planetary Resources Group Wants to Mine Asteroids - 0 views

www.universetoday.com/...-group-wants-to-mine-asteroids

scibyte44 Asteroid AsteroidMining

shared by Mars Base on 25 Apr 12 - No Cached
  • this company has been in existence for about three years, working quietly in the background, assembling their plan.
  • will initially focus on developing Earth orbiting telescopes to scan for the best asteroids, and later, create extremely low-cost robotic spacecraft for surveying missions.
1 - 20 of 85 Next › Last »
Showing 20▼ items per page