Skip to main content

Home/ SciByte/ Group items tagged scibyte29

Rss Feed Group items tagged

Mars Base

NASA - Space Station Astronaut Will Answer Video Questions From Public - 0 views

  • unique opportunity to ask the commander of the International Space Station a question about his role on the orbiting outpost
  • Commander Dan Burbank will answer videotaped questions from the public during a live event tentatively set for Friday, Jan. 20
  • video questions must be less than 30 seconds
  • ...9 more annotations...
  • Submitters should introduce themselves and mention their location
  • Questions must be posted as responses to a video Burbank recorded on YouTube at: http://go.nasa.gov/sDYpzP
  • Burbank launched to the station on Nov. 13
  • conduct a variety of science experiments and perform station maintenance during his nearly six-month stay on the outpost
  • Burbank will answer questions during the time available
  • airing live on NASA TV
  • answers will be posted to YouTube
  • http://twitter.com/AstroCoastie
  • Expedition 30 and the exact time of the event, visit: http://www.nasa.gov/station
Mars Base

Kepler Spies Smallest Alien Worlds Yet - ScienceNOW - 0 views

  • 11 January 2012
  • very rough statistical analysis, the new discovery suggests that up to one-third of all red dwarf stars in the Milky Way galaxy are accompanied by small, rocky planets, many of which might be in wider orbits
Mars Base

India Marks 1 Year Without Polio, But Global Eradication Remains Uncertain - ScienceIns... - 0 views

  • India Marks 1 Year Without Polio
  • By all indications, the country has gone 1 year without a single case
  • India's achievement is a major boost to the beleaguered GPEI, which has spent more than $8 billion over the past 23 years to rid the world of the disease
  • ...2 more annotations...
  • cases are surging in a number of countries -- not just the three other endemic countries of Pakistan, Afghanistan, and Nigeria, but in a dozen reinfected countries, many in Africa.
  • Many countries have been declared polio-free only to be reinfected by virus imported from another country
Mars Base

Astronomers Find Saturn's Possible Cosmic Doppelgänger - 0 views

  • January 12, 2012
  • An artist's impression of a possible Saturn-like planet orbiting around a distant star. Image credit: Michael Osadciw/University of Rochester
  • An artist's impression of a brown dwarf surrounded by a cloud of proto-planet dust. Image credit: JPL
  • ...2 more annotations...
  • A size comparison between the Sun, a low mass star, a brown dwarf, Jupiter, and the Earth. Image credit: NASA
  • Two of Saturn's shepherd moons keep the planet's F ring in check. Image Credit: NASA/JPL
Mars Base

Fun New App: MoonWalking - 0 views

  • January 12, 2012
  • app called MoonWalking allows you to bring Tranquility Base down to Earth
  • Using your iPhone or iPad as an interactive
  • ...4 more annotations...
  • you can watch all the action, and even take pictures of the events with your iPhone
  • augmented-reality app that recreates Tranquility Base in your backyard or neighborhood park
  • download it from iTunes for only $.99.
  • is for iPhones and iPads only.
Mars Base

NASA - NASA Discovers New Double-Star Planet Systems - 0 views

  • An artist's rendition of the Kepler-35 planetary system
Mars Base

Twitter Kept Up With Haiti Cholera Outbreak - Science News - 0 views

  • Twitter, blogs and other social media can be powerful tools for tracking infectious diseases as they spread
  • researchers who followed social media during Haiti’s post-earthquake cholera outbreak in 2010.
  • Twitter posts and news about cholera gathered
  • ...9 more annotations...
  • in the first 100 days of the outbreak tracked closely
  • data reported from hospital and clinics
  • social media data were available almost instantly
  • others have shown that Twitter and other online sources can provide meaningful information about outbreaks of diseases such as H1N1 and swine flu
  • new work establishes that the approach is useful for tracking a disease that emerges in the unsafe living conditions that often follow a disaster, says Polgreen.
  • 188,819 tweets that contained or were tagged with the word cholera during the first 100 days of the cholera outbreak
  • analysis suggests the social tool provides a good measure of the disease’s spread
  • The researchers compared the tweets to data from HealthMap, a disease-tracking tool that mines Internet news stories, blogs and discussion groups and lets the public report illness by cell phone. Both the Twitter and HealthMap data corresponded to official data from the Haitian Ministry of Public Health.
  • Official sources of data are better validated, but on the downside they are going to take time
Mars Base

Tatooine the Sequel: Kepler Finds Two More Exoplanets Orbiting Binary Stars - 0 views

  • January 12, 2012
  • Artist's conception of the Kepler-35 system. Credit: Lynette Cook / extrasolar.spaceart.org / Nature
Mars Base

Recent Satellite Crashes Bring Space Junk Problem Into Public Eye | Space Junk & Orbita... - 0 views

  • 12 January 2012
  • news that a failed Russian Mars probe will come crashing back to Earth in the next few days
  • public perception that the sky is falling —
  • ...14 more annotations...
  • huge pieces of space junk could rain down on us at any moment.
  • Phobos-Grunt spacecraft
  • re-enter the atmosphere sometime between Saturday and Monday (Jan. 14 to Jan. 16).
  • the third uncontrolled satellite re-entry in four months
  • claims are handled on a case-by-case basis, you might be surprised to learn damage from satellite debris, aka space junk, likely would be covered under most insurance policies
  • Farmers Insurance, aired a commercial during this winter's college football bowl games offering similar assurances to its current and potential customers.
  • Experts predict that Russia's failed Mars probe Phobos-Grunt will crash back to Earth in mid-January 2012. This artist's concept shows fuel burning from a ruptured fuel tank as the spacecraft re-enters the atmosphere.CREDIT: Michael Carroll
  • NASA estimates that our planet's orbital debris cloud contains more than 500,000 pieces larger than a marble and more than 20,000 at least as big as a softball
  • space junk poses little threat to people on the ground. Most pieces of falling satellites burn up the atmosphere
  • the bits that make it through are likely to land harmlessly in the ocean or on uninhabited land
  • To date, nobody is known to have been injured by a chunk of falling debris.
  • poses a real threat to the craft that orbit and observe our planet and provide navigation and telecommunications services
  • 2009, for example, the Iridium 33 communications satellite was destroyed when it slammed into a defunct Russian satellite.
  • This computer illustration depicts the density of space junk around Earth in low-Earth orbit.CREDIT: ESA
Mars Base

First Saturn-like rings circle alien world - 0 views

  • 11 January 2012
  • Saturn-like ring system has been discovered 420 light years away
  • using the ground-based SuperWASP (Wide Angle Search for Planets) and All Sky Automated Survey (ASAS),
  • ...19 more annotations...
  • do the rings encompass a planet or a companion star?
  • four defined rings stretch out tens of millions of kilometres from the central object
  • dubbed Rochester, Sutherland, Campanas and Tololo after the sites where the eclipsed star was first detected and analysed
  • similar in mass to our own Sun, but a fraction of its age at just 16 million years.
  • Usually a star’s light is temporarily and periodically dimmed as a planet passes in front of it
  • in this case the team observed an unusually long and deep eclipse with up to 95 percent of the star’s light being dimmed by what the team conclude is a dusty ring system.
  • the only plausible explanation was some sort of dust ring system orbiting a smaller companion
  • Saturn on steroids
  • the first time astronomers have detected an extrasolar ring system transiting a Sun-like star
  • astronomers are unable to conclude what the ring system is orbiting
  • could be a very low-mass star, a brown dwarf, or a gas planet
  • hope to find the answer
  • over the next two years
  • another mystery
  • two pronounced gaps located between rings
  • gaps are carved by moons that have enough mass to gravitationally clear a path along their orbits
  • Saturnian system
  • brown dwarf or star then we could be seeing the late stages of planet formation in action
  • a giant planet, then perhaps there is a moon in the making.
Mars Base

NASA's Kepler Mission Finds Three Smallest Exoplanets - NASA Jet Propulsion Laboratory - 0 views

  • January 11, 2012
  • Kepler program scientist at NASA Headquarters in Washington. "Finding one as small as Mars is amazing, and hints that there may be a bounty of rocky planets all around us."
  • Red dwarfs are the most common kind of star in our Milky Way galaxy. The discovery of three rocky planets around one red dwarf suggests that the galaxy could be teeming with similar rocky planets.
  • ...4 more annotations...
  • In December 2011, scientists announced
  • : a planet 2.4 times the size of Earth
  • Later in the month
  • team announced the discovery of the first Earth-size planets
Mars Base

Transiting circumbinary planets Kepler-34 b and Kepler-35 b : Nature : Nature Publishin... - 0 views

  • Received 15 November 2011 Accepted 05 December 2011 Published online 11 January 2012
  • Questions remained, however, about the prevalence of circumbinary planets and their range of orbital and physical properties
Mars Base

News | SDSU | Discovery Creates New Class of Planetary Systems - 0 views

  • Using data from NASA’s Kepler Mission
  • astronomers announced the discovery of two new transiting “circumbinary” planet systems — planets that orbit two stars.
  • two new planets, named Kepler-34 b and Kepler-35 b, are both gaseous Saturn-size planets
  • ...6 more annotations...
  • Kepler-34 b orbits its two sun-like stars every 289 days, and the stars themselves orbit and eclipse each other every 28 days.
  • eclipses allow a very precise determination of the stars
  • Kepler-35 b revolves about a pair of smaller stars (80 and 89 percent of the sun’s mass) every 131 days, and the stars orbit and eclipse one another every 21 days
  • Kepler-34 at 4,900 light-years from Earth
  • Kepler-35 at 5,400 light-years
  • among the most distant planets discovered.
Mars Base

New Deep Space Capsule Passes NASA Chief's Inspection NASA & Orion Multipurpose Crew Ve... - 0 views

  • engineers have completed a suite of structural, acoustic and vibration tests on key components of the spaceship
  • Orion Multi-Purpose Crew Vehicle
  • stacked hardware stretching 53 feet (16 meters)
  • ...10 more annotations...
  • unmanned 2014 EFT-1 mission will blast Orion into space aboard a Delta 4-Heavy rocket. The capsule will orbit Earth twice while climbing to an altitude of several thousand miles, then rocket back in a high-speed plunge to validate its heat shield and other systems.
  • Artist's rendering of the Multi-Purpose Crew Vehicle on a deep space mission.CREDIT: NASA
  • Acoustic testing
  • recent acoustic testing of the Orion crew module/launch abort system structure involved hundreds of sensors planted throughout the hardware.
  • subjected it to the flight environment
  • chamber gets up to 150 decibels…like a rifle shot right next to your ear. It's pretty loud. All that sound…it's like a really loud rock concert
  • Huge heat shield
  • underside of Orion's crew module is the heat shield
  • measuring 16.5 feet (5 m) in diameter
  • Thermal Protection System advances heritage materials from the NASA's space shuttle and Apollo programs to create a next-generation system that can withstand the extreme environments of piloted deep space missions.
Mars Base

'Saturn on Steroids': 1st Ringed Planet Beyond Solar System Possibly Found | Alien Plan... - 0 views

  • enigmatic object detected five years ago in space may be a ringed alien world comparable to Saturn
  • Mind the gaps
  • gaps usually are signs that massive bodies are sculpting the ring edges
  • ...2 more annotations...
  • a planet, moons could be carving these rings
  • it could be newborn planets that are responsible.
Mars Base

3 Alien Planets Smaller Than Earth Found | Alien Planets & Solar Systems | NASA & Keple... - 0 views

  • : 11 January 2012
  • orbit very close to their star, just 0.6 to 1.5 percent the distance from Earth to the sun
  • surface temperatures of these planets range from 720 Kelvin (836 degrees F) to 450 Kelvin (350 degrees),"
1 - 20 of 34 Next ›
Showing 20 items per page