• Asteroid’s Record-Breaking Brush with Earth Changed It Forever

    A tiny asteroid that zipped by Earth this month made the closest-ever approach to our planet without hitting it, an encounter that changed its place in our solar system forever, NASA scientists say. The asteroid, called 2011 CQ1, came within 3,400 miles (5,471

  • Two planets found sharing one orbit!

    Buried in the flood of data from the Kepler telescope is a planetary system unlike any seen before. Two of its apparent planets share the same orbit around their star. If the discovery is confirmed, it would bolster a theory that Earth once shared its orbit with a