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E.g., 01/19/2018
E.g., 01/19/2018
Your search has returned 442 images:
  • Mars ice
  • illustration of Jupiter and Europa
  • illustration of astronauts on Mars
Your search has returned 819 articles:
  • News in Brief

    Shallow ice sheets discovered on Mars could aid future astronauts

    Martian ice has a thin skin. The newly discovered exposure of ice on steep banks suggests that the Red Planet’s ice sheets are buried by just a meter or two of soil, researchers report in Science January 12.

    “What’s new and exciting here is that these ice sheets start quite shallowly,” says planetary scientist Colin Dundas of the U.S. Geological Survey in Flagstaff, Ariz. That could be...

    01/11/2018 - 14:00 Planetary Science
  • News in Brief

    Hubble telescope ramps up search for Europa’s watery plumes

    OXON HILL, Md. — Astronomers may soon know for sure if Europa is spouting off. After finding signs that Jupiter’s icy moon emits repeating plumes of water near its southern pole, astronomers using the Hubble Space Telescope hope to detect more evidence of the geysers.

    “The statistical significance is starting to look pretty good,” astronomer William Sparks of the Space Telescope Science...

    01/11/2018 - 13:34 Planetary Science, Astrobiology
  • Feature

    How to keep humans from ruining the search for life on Mars

    T he Okarian rover was in trouble. The yellow Humvee was making slow progress across a frigid, otherworldly landscape when planetary scientist Pascal Lee felt the rover tilt backward. Out the windshield, Lee, director of NASA’s Haughton Mars Project, saw only sky. The rear treads had broken through a crack in the sea ice and were sinking into the cold water.

    True, there are signs of...

    01/10/2018 - 11:30 Planetary Science, Astrobiology
  • Science Ticker

    NASA is headed to Earth’s outermost edge

    NASA is going for the gold. Its GOLD mission — short for Global-scale Observations of the Limb and Disk mission — is slated for launch January 25, the agency announced January 4. GOLD will study the zone where Earth’s atmosphere meets outer space. Its goal is to better understand how both solar and terrestrial storms affect the ionosphere, an upper atmosphere region crucial for radio...

    01/04/2018 - 18:03 Planetary Science, Earth
  • News in Brief

    Aliens ruled out for why Tabby’s star flickers

    The first observations of Tabby’s star flickering in real time have put the last nails in the “it’s-an-alien-megastructure” coffin.

    The star’s most recent winks show that the dimming is from small dust particles surrounding it, a team of more than 200 scientists and amateur astronomers reports in a paper posted at arXiv.org January 3.

    The oddball star, officially named KIC 8462852...

    01/03/2018 - 15:58 Astronomy, Planetary Science
  • The Name Game

    86 stars get official names

    In December, astronomers and space enthusiasts received an early present: 86 newly official star names.

    Such designations are often derived from Arabic, Greek or Latin origins. But the new monikers also draw inspiration from ancient mythologies and historical star names from indigenous cultures around the world, including in China, Australia and southern Africa. The star names were...

    01/02/2018 - 09:00 Astronomy, Cosmology, Planetary Science
  • Year in Review

    Here’s what you might have missed in space this year

    Missions to Jupiter and Saturn made big headlines this year, offering closeup views of the two gas giants. 2017 had plenty of other updates from exciting missions of years past.

    Juno

    The Juno spacecraft has kept a watchful eye on Jupiter since entering the gas giant’s orbit in 2016. This year, Juno had seven planned science flybys of the planet, giving researchers a first intimate look at...

    12/26/2017 - 07:00 Planetary Science, Astronomy
  • Science Ticker

    NASA’s next stop will be Titan or a comet

    NASA’s next mission will go where some spacecraft have gone before. The two finalists in the agency’s selection process will return to either Saturn’s moon Titan or comet 67P/Churyumov-Gerasimenko, NASA announced in a press teleconference on December 20.

    The Dragonfly mission would launch a drone-like craft to Saturn’s largest moon in 2025 that would land in 2034. NASA’s Cassini-Huygens...

    12/20/2017 - 16:56 Astronomy, Planetary Science
  • News

    Saturn’s rings are surprisingly young and may be from shredded moons

    NEW ORLEANS — Saturn’s iconic rings are a recent addition. Final data from the Cassini spacecraft, which flew between the planet and the rings this year before plunging into the gas giant’s atmosphere, show the rings are around a few hundred million years old and less massive than previously thought.

    Those findings suggest the rings are probably the remnants of at least one moon, rather...

    12/14/2017 - 15:30 Planetary Science, Astronomy
  • News in Brief

    New Horizons’ next target might have a moon

    NEW ORLEANS — The New Horizons team may get more than it bargained for with its next target. Currently known as 2014 MU69, the object might, in fact, be two rocks orbiting each other — and those rocks may themselves host a small moon.

    MU69 orbits the sun in the Kuiper Belt, a region more than 6.5 billion kilometers from Earth. That distance makes it difficult to get pictures of the...

    12/12/2017 - 18:49 Astronomy, Planetary Science