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Mars Base

Voyager 1 spacecraft reaches interstellar space, study confirms - 0 views

phys.org/...ecraft-interstellar-space.html

scibyte102 Voyager1

shared by Mars Base on 13 Sep 13 - No Cached
  • University of Iowa space physicist
  • says there is solid evidence that NASA's Voyager 1 spacecraft has become the first manmade object to reach interstellar space
  • 11 billion miles distant and 36 years after it was launched
  • ...8 more annotations...
  • For several months, the relative position of Voyager 1
  • remains some lingering evidence of the nearby heliosphere beyond the heliopause.
  • April
  • there are variations in some of Voyager's measurements that may be due to the nearby presence of the heliosphere
  • 11.6 billion miles from the sun, or about 125 astronomical units.
  • it takes more than 17 hours for a radio signal to travel from the spacecraft
  • The signal strength is so incredibly weak that it takes both a 230-foot and a 110-foot-diameter antenna to receive our highest resolution data
  • moving outward from the sun at about 3.5 AU per year
Mars Base

Listen to the Sounds of Interstellar Space, Recorded by Voyager 1 - 0 views

www.universetoday.com/...ar-space-recorded-by-voyager-1

scibyte102 Voyager1

shared by Mars Base on 13 Sep 13 - No Cached
  • Voyager 1 was able to record the sounds of interstellar space. This helped the Voyager science team calculate the density of interstellar plasma
Mars Base

Planetary Resources Raises $1.5M for Crowdfunded Space Telescope | Space Telescopes | S... - 0 views

www.space.com/owdfunded-space-telescope.html

CrowdFunded Arkyd scibyte101

shared by Mars Base on 07 Sep 13 - No Cached
  • Planetary Resources raised more than $1.5 million in 33 days to launch a small space telescope into low Earth orbit in 2015
  • Planetary Resources, Bellevue, Wash., began a Kickstarter crowdfunding campaign May 29 seeking to raise at least $1 million by June 30
  • The company hit that goal June 19, then raked in another $505,366 in the final 10 days of the campaign, including $100,000 on June 30 from Virgin Group Chairman Richard Branson.
  • ...3 more annotations...
  • 17,614 people donated money for the crowdsourced Arkyd-100
  • 14,919 space selfies, according data from Kickstarter
  • Kicktraq.com, shows that Planetary Resources raised an average of $45,614 a day, with the 17,614 donors contributing an average of $85 each
Mars Base

Wow! Curiosity Rover Captures 2 Mars Moons Together In Stunning NASA Video | Space.com - 0 views

www.space.com/osity-martian-moons-video.html

Curiosity scibyte101

shared by Mars Base on 07 Sep 13 - No Cached
  • Earth's moon
  • A spectacular new video from NASA's Mars rover Curiosity shows the Red Planet's two tiny moons eclipsing each other
  • Curiosity snapped 41 images of the Mars moons in the night sky on Aug. 1, with rover scientists then stitching them together to make the final 30-second video
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  • the first time a view of the two Martian satellites — called Phobos and Deimos — eclipsing each other has been captured from the vantage point of the planet's surface
  • researchers are studying the images to refine their knowledge of the orbits of Phobos and Deimos
  • ultimate goal is to improve orbit knowledge enough that we can improve the measurement of the tides Phobos raises on the Martian solid surface
  • Phobos' orbit is taking it closer to the surface of Mars very slowly
  • Deimos may gradually be getting farther and farther away from the planet
  • Phobos is just 14 miles (22 kilometers) wide on average, while Deimos is even smaller
  • But Curiosity was able to spot both of them because they orbit
  • 3,700 miles (6,000 km) in Phobos' case and 12,470 miles (20,070 km) for Deimos
  • Earth's moon
  • a diameter of about 2,160 miles (3,475 km)
  • farther away — its average distance is 239,000 miles (384,600 km)
  • Phobos appears half as big in the sky to Curiosity as Earth's moon does to human skywatchers
  • Earth's moon
Mars Base

Hobbled Kepler Space Telescope Now On The Hunt For A New Mission - 0 views

www.universetoday.com/...-on-the-hunt-for-a-new-mission

Kepler scibyte101

shared by Mars Base on 07 Sep 13 - No Cached
  • NASA cannot recover the two failed reaction wheels that stopped Kepler from doing its primary science mission
  • the spacecraft, which is already working years past when its prime mission ceased in 2010, is still in great shape otherwise
  • could be anything from searching for asteroids to a technique called microlensing, which could show Jupiter-sized planets around other stars with the spacecraft’s more limited pointed ability
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  • NASA is now considering other science missions
  • the health of the spacecraft, but it is so far listed as good (except for the two damaged reaction wheels).
  • There are limiting factors
  • radiation can degrade components over time, and a stray micrometeorid could (as a small chance) cause damage on the spacecraft
  • a state where the spacecraft uses as little fuel as possible
  • point rest state right now
  • will extend the fuel “budget” for years
  • unable to say just how many years yet
  • Another concern is NASA’s limited budget
  • Kepler has, so far, detected more than 2,700 candidate exoplanets orbiting distant stars, including many Earth-size planets that are within their star’s habitable zone, where water could exist in liquid form
  • NASA made several attempts to resurrect the wheels
  • follow-up spacecraft planned: the Transiting Exoplanet Survey Satellite, which is expected to start around 2017 or 2018. It will look for alien planets in the brightest and closest stars in the entire sky, in locations that are (in relative terms) close to Earth.
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