A nearby Sun-like star hosts four Earth-sized planets
Any life there would get pelted by asteroids and comets, though.
Asteroid family is as old as the Solar System itself
They're 1 billion years older than what scientists are used to.
Jupiter is the oldest planet in the Solar System
The king of the planets started taking shape almost as soon as the sun formed 4.6 billion years ago.
NASA seeks comet 'crumbs' with a new detection technique
LISA Pathfinder could map the trails of comet dust in the Solar System.
NASA to announce a 'discovery beyond our solar system' tomorrow
You can watch it on NASA TV.
Uranus might have two more moons
Data from Voyager 2’s 30-year-old flyby is still serving up discoveries.
Juno probe makes the closest-ever encounter with Jupiter
You can expect Juno's photos of the close-up within days.
Hawaiian telescope spots a new dwarf planet beyond Neptune
Pluto has another friend.
Juno: An inside look at NASA's mission to Jupiter
The spacecraft's arrival next month will reveal the composition of the largest planet.