Featured in solar system
NASA hasn’t been to Venus since the ’90s. Now it’s planning two trips to our smoking hot neighbor.
Earth’s long-neglected twin is finally going to get the attention astronomers say it deserves.
How the most distant object ever made by humans is spending its dying days
Voyager 1 continues to observe the farthest corners of the solar system—but it may not for long.
A guide to the solar system’s biggest secrets
Jupiter, the planet killer, and three other untold stories from space.
The most life-friendly places on ancient Mars were deep below its surface
Subglacial lakes may have been the most hospitable place for life.
Researchers trace galactic history in ancient grains of alien sand
They’re the oldest things you could possibly touch.
The Moon keeps flashing us and we have no idea why
But some answers might finally be on the way.
Planet Nine might not actually be a planet
It could be something even cooler.
Kepler finally ran out of gas, but it will always fuel our planet-hunting ambitions
It defied the odds to discover thousands of planets.
Voyager 2 is almost outside the sun’s protective bubble
It follows its predecessor toward where no other (active) spacecraft has gone before.
Jupiter’s magnetic field has two ‘south poles’
It's completely different from Earth