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.
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.
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!
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.
Such a storm would wreak havoc with our communication systems and power supplies, and scientists say we’re overdue.
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.
Dark matter makes up 90% of the matter in both systems, the study finds.
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 Opportunity rover, still going after 10 years on Mars, now holds the off-Earth roving distance record with 25 miles of driving.