After a journey of 9.5 years across 3 billion miles of space, NASA's New Horizons spacecraft is about three months away from its closest approach to the dwarf planet Pluto.
The first scientific paper to include observations from the surface of a speeding comet has been released, marking a new era in cometary science.
Your smartphone is a camera, a calculator, a flashlight and a pedometer. Scientists believe it could be part of an earthquake early-warning system too.
It's a lunar mystery that has lingered for decades: If the moon is made of material from another planetary body that crashed into Earth, why is its chemical fingerprint so similar to that of our planet?
Are we alone in the universe? Top NASA scientists say the answer is almost certainly “no.”
Is breast milk always best for babies? Not when it's purchased over the Internet, according to a new study.
There's a total lunar eclipse coming up early Saturday morning and you don't want to miss it.