The New Horizons spacecraft zooms toward an object 4 billion miles from Earth.
NASA designs a mission to crash a spent rocket stage into a lunar crater to detect the presence of water ice on the Moon in this video from NOVA Back to the Moon.
Scientists describe the Moon’s unique topography and explain why direct sunlight never reaches the inside of some of its craters in this video from NOVA Back to the Moon.
The comet, 2I/Borisov, comes from another planetary system, but bears a remarkable resemblance to local space rocks.
Astronomers discovered 20 new moons around Saturn, bringing its total to 82.
New data from NASA’s Curiosity rover suggests that water vacated Mars in fits and starts.
Light from nearby galaxies illuminated the web’s ‘threads,’ making them directly visible to telescopes on Earth.
A pair of physicists think it’s possible that a tiny black hole left over from the universe’s early days lurks in the outer solar system.