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August 29, 2013 eruption on Io
Science Wire | Aug 04, 2014

For two weeks last August, all hell broke loose on Jupiter’s moon Io

The energy emitted by these volcanic eruptions implies lava fountains gushing at a huge volume per second, forming lava flows that quickly spread over Io’s surface.

Mercury, via MESSENGER
Blogs | Aug 04, 2014

Zoom close to Mercury’s surface via MESSENGER spacecraft

You’ve got to see the movie made by the MESSENGER spacecraft in June 2014, when it began a series of close passes to the sun’s innermost planet, Mercury.

Photo by Damian Peach
Science Wire | Aug 04, 2014

Soon-to-be-famous comet passes a ringed galaxy

Beautiful image of Comet C/2013 A1 Siding Spring from this weekend. This is the comet that will pass extremely near Mars in October. Thank you, Damian Peach!

Saturn and moon by Colin Legg Photography
Science Wire | Aug 03, 2014

Watch online as the moon sweeps in front of Saturn

Online coverage of the moon photobombing Saturn – seen from Australia – will begin on Monday, August 4, starting at 4 a.m. PDT / 7 a.m. EDT / 11:00 UTC.

Image credit: NASA
Science Wire | Aug 01, 2014

Scientist warns of inevitable solar super-storm propelled towards Earth

Such a storm would wreak havoc with our communication systems and power supplies, and scientists say we’re overdue.

Science Wire | Jul 30, 2014

Wildly misaligned planet-forming disks in binary star system HK Tau

There’ve been hints in the past that this type of misaligned system exists, but this is the cleanest and most striking example, astronomers say.

Andromeda galaxy, Messier 31.  Image credit: Adam Evans
Science Wire | Jul 30, 2014

Milky Way is about half as massive as Andromeda galaxy, say astronomers

Dark matter makes up 90% of the matter in both systems, the study finds.

Science Wire | Jul 29, 2014

101 geysers on Enceladus, ice moon of Saturn

Researchers have concluded that the only plausible source for the geysers is an underground sea now known to exist beneath Enceladus’ icy surface.

NASA's Mars Exploration Rover Opportunity, working on Mars since January 2004, passed 25 miles of total driving on July 27, 2014. The gold line on this map shows Opportunity's route from the landing site inside Eagle Crater (upper left) to its location after the July 27 (Sol 3735) drive. Image credit: NASA/JPL-Caltech/MSSS/NMMNHS
Science Wire | Jul 29, 2014

Mars rover set an off-world driving distance record this week

NASA’s Opportunity rover, still going after 10 years on Mars, now holds the off-Earth roving distance record with 25 miles of driving.

Blogs | Jul 28, 2014

As Comet Siding Spring approaches Mars, NASA gets ready

The icy core of Comet C/2013 A1 Siding Spring won’t strike Mars, but dust from the comet might damage our spacecraft.