An old theory gets a new assist from the sun.
Researchers are testing how life on the International Space Station affects the microbiome.
Shower your friends with meteor facts.
More than a light Venusian breeze.
Bright lights, big planet.
High impact research.
Also in space: A neighborhood of black holes, a new (and old) reason to study Venus' clouds, and the end of the Lunar XPrize.
It's time to return to our hellish neighbor.
We think you can, Opportunity.
Don't you want to meet them?
Short answer: a time machine
A look behind the scenes of NASA's advanced solar probe
Not all scientists are happy about recent Discovery mission picks
A bigger smash solves everything.
Finally, a good use for climate change
Must-see destinations out beyond Mars
Here's the whole collection
The evidence is right in front of you.
Till mid-February, early risers will see the first five-planet alignment in a decade
Erupting slush instead of lava
Short answer: It depends who you ask
After nine years and three billion miles, here's what we're learning from it all