Our solar system may have formed inside a giant space bubble
This new theory explains the proportions of certain elements in the early solar system.
First observed interstellar object is a speedy, cigar-shaped asteroid
It has been traveling for hundreds of millions of years.
MIT's DIY muon detector sniffs out cosmic particles
And it only costs $100 to build.
Touring the solar system with a new book of NASA photos
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.