Why NASA wants to 'touch the sun'

NASA's InSight lander captures intimate sights and sounds of Mars

Geminid meteor shower: What you need to know

NASA's Voyager 2 has entered interstellar space

The mystery of dark matter and dark energy might just have been solved

10 wonders of the solar system

What to see in the night sky in December

NASA fixes Hubble with 'jiggle' maneuver

5 things to know about the Mars InSight lander

A timeline of the distant, disturbing future

Jezero Crater will host NASA's next Mars rover

A massive impact crater has been hiding under Greenland's ice sheet