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The faint tail can be seen in active asteroid 62412. Image credit: Scott Sheppard
Science Wire | Nov 12, 2014

Comet-like tail discovered on long-known asteroid

Until about 10 years ago, it was pretty obvious what a comet was and what a comet wasn’t. Now, that’s changing …

Science Wire | Nov 12, 2014

Watch today’s comet landing live online

NASA and ESA will provide live online coverage of the November 12 Rosetta mission’s scheduled landing of a probe on a comet. Here’s how to watch.

Jupiter's Great Red Spot
Science Wire | Nov 11, 2014

What makes Jupiter’s Red Spot red?

A new analysis suggests that sunlight – not chemicals beneath Jupiter’s clouds – give the Great Red Spot its ruddy color.

Cassini radar data reveal the depth of a liquid methane/ethane sea on Saturn's moon Titan near the mouth of a large, flooded river valley.  Image via NASA/JPL-Caltech/ASI/Cornell
Science Wire | Nov 11, 2014

Extraterrestrial oceanography reveals depths of Titan sea

The Cassini spacecraft – which has been orbiting Saturn since 2004 – used radar to sound the depths of a sea of liquid methane and ethane on Saturn’s large moon Titan.

Wow.  Does it get any better than this?
Science Wire | Nov 10, 2014

Three cool images of a comet’s night side

The dayside images of Rosetta’s comet have been fantastic. Now, thanks to backscatter of sunlight from the comet’s coma, we’re seeing amazing nightside images.

Science Wire | Nov 10, 2014

Dramatic attempt to land on a comet coming Wednesday

Rosetta spacecraft will do the equivalent of transferring an object from one speeding bullet to another, when it tries to place its Philae lander on its comet.

Screen Shot 2014-11-10 at 7.54.10 AM
Science Wire | Nov 10, 2014

Video: Astronauts put GoPro in floating water ball

Watch three astronauts aboard the ISS having fun with a GoPro and a floating ball of water.

Science Wire | Nov 10, 2014

Spectacular meteor shower on Mars from Comet Siding Spring

Several craft orbiting Mars saw its aftermath. Also, after Siding Spring passed, the MAVEN mission got the first direct measurements of dust from an Oort Cloud comet!

Science Wire | Nov 09, 2014

Bright fireball seen over San Antonio, Texas

Hundreds of sky watchers in Texas reported a bright meteor or fireball Saturday night. It was said to be greenish in color and to rival the brightness of the sun!

Inferred distribution of dark matter superimposed in purple over a Hubble Space Telescope image of the galaxy cluster Abell 1689. Image via NASA, ESA, E. Jullo (JPL/LAM), P. Natarajan (Yale) & J-P. Kneib (LAM)
Science Wire | Nov 09, 2014

Curious about dark matter? Three scientists answer your questions

Why do you bet on axions or WIMPs?
If you find dark matter, what are the next steps?
Will we need a whole new “Dark Standard Model”?
What’s it like searching for something you may never find?