Watch NASA's InSight land on Mars tomorrow starting at 2PM ET
It's NASA's first touchdown on the planet since 2012.
Orbiter flaw may have ruled out some signs of water on Mars
The Mars Reconnaissance Orbiter has produced false positives.
LiDAR strips landscapes down to their bare glory
The Mars InSight lander is on track to launch in May
It just completed its environmental testing phase.
Dark streaks on Mars may not be caused by flowing water
New evidence points to shifting sand and dust, not liquid.
Scientists search 3 million publications to unlock sea change secret
They did it quickly thanks to the new research tools they created.
The Pacific Ocean is hiding a whole continent
New Zealand would just be the peak of a much larger underwater land mass.
Scientists may have discovered a lost continent
We might have to rethink our models of ancient Earth.
Mercury is the first planet after Earth with tectonic activity
Scientists have shown that the tiny planet is more alive than it seems on the surface.