Search Content

E.g., 06/22/2015
E.g., 06/22/2015
Your search has returned 434 images:
Your search has returned 1753 articles:
  • News

    Peeks into early life of supernovas show how to blow up a star

    There’s more than one way to explode a star. Four recently seen type 1a supernovas show off some of this diversity. One supernova hints at the gas of a partner star fueling the explosion; colliding white dwarfs — the exposed cores of dead stars — probably triggered the other three.

    The observations, described in a pair of papers in the May 21 Nature, give astronomers a rare look...

    05/20/2015 - 13:00 Astronomy
  • News

    Sea salt may stripe Europa’s surface

    View the video

    Salt from a subsurface sea on Jupiter’s moon Europa might scribble the rust-colored bands that crisscross the satellite’s icy surface.

    The salt is probably deposited on the surface by liquid water that intermingles with a rocky seabed, researchers report May 15 in ...

    05/19/2015 - 12:00 Planetary Science
  • Science Ticker

    Boulders balance on tiny tips as comet 67P zooms through space

    Balanced Rock in Arches National Park in Utah has cousins on comet 67P/Churyumov-Gerasimenko. Three boulders — the largest of which is roughly 30 meters across — are barely in contact with the comet’s surface, researchers report May 18 on...

    05/18/2015 - 16:38 Planetary Science
  • News

    Asteroids boiled young Earth’s oceans, remnant rocks suggest

    Asteroid impacts around 3.3 billion years ago may have created hell on Earth.

    Rocks left over from Earth’s adolescence suggest that giant impacts boiled the oceans billions of years ago, lowering the global sea level by tens of meters. The huge amounts of energy released during the impacts increased air temperatures to more than 500° Celsius for weeks and above water’s boiling point for...

    05/15/2015 - 07:00 Earth, Planetary Science
  • First

    First quasar quartet discovered

    A foursome of quasars on the far side of the universe heralds the birth of a massive cluster of galaxies, researchers suggest in the May 15 Science. The light from the four blazing cores of galaxies illuminates an enormous hydrogen cloud, 1 million light-years long with the mass of 100 billion suns. The cloud...

    05/14/2015 - 14:00 Astronomy
  • Science Ticker

    New Horizons probe takes family photo of Pluto's moons

    Pluto’s family portrait (as far as we know) is complete. The New Horizons spacecraft finally spied the dwarf planet's two tiniest satellites, Kerberos and Styx, in a series of images taken from April 25 to May 1, when the probe was nearly 90 million kilometers from Pluto. The moons were ...

    05/13/2015 - 15:38 Planetary Science
  • News

    Andromeda reaches out to touch Milky Way

    View the graphic

    The spiral disk of the Andromeda galaxy, the Milky Way’s neighbor, is just a tiny part of a much larger entity. The visible part of the galaxy is embedded in a tenuous halo of gas about six times as large as previously measured, researchers report in the May 10 Astrophysical...

    05/12/2015 - 10:25 Astronomy
  • Science Ticker

    Japanese satellite stalls in space and won't reach its asteroids

    Unfortunately for the tiny PROCYON spacecraft, AAA doesn’t offer roadside assistance in space. The Japanese space agency’s probe was en route to the binary asteroid 2000 DP107, but its ion engines stopped working in March. Following several attempts to restart the engines, the agency...

    05/12/2015 - 06:00 Astronomy
  • Science Ticker

    Bright spots on Ceres may be made of smaller patches of ice

    Ceres is revealing more about its pockmarked surface. Two ambiguous bright spots, first seen by the Hubble Space Telescope in 2003, appear to be a cluster of ice patches nestled at the bottom of a crater, new images from the Dawn spacecraft suggest. Some scientists had previously...

    05/11/2015 - 15:45 Planetary Science
  • Introducing

    Erupting volcanoes may cause exoplanet’s temperature extremes

    Visitors to exoplanet 55 Cancri e should dress in layers; daytime temperatures can fluctuate by more than 1,000 degrees Celsius. Volcanic plumes might trigger deep chills, making the planet potentially the first volcanically active body known outside the solar system.

    From 2011 to 2013, the planet’s temperature fluctuated between a balmy approximately 1,000° C and a scorching 2,700°,...

    05/11/2015 - 07:00 Astronomy, Exoplanets