NASA (July 15, 2013) Caleb: If you want to look back in time to the beginning of our solar system, look no further than comets and asteroids.
Molly: These solar system time capsules have been giving away secrets of not ... watch video
NASA (Feb. 15, 2013) It may have been small, appearing so even in the best optical telescopes on Earth, but the flyby of asteroid 2012 DA14 was anything but a minor event to astronomers. Never feared as a threat to ... watch video
NASA (July 25, 2013) What if one of the millions of asteroids in our solar system was on a collision course with the Earth? What would we do? How would we react? Hundreds of the world’s top engineers and ... watch video
Newsy (Oct. 19, 2014) A comet from the farthest reaches of the solar system passed extremely close to Mars this weekend, giving astronomers a rare opportunity to study it.
Video provided by ... watch video
Feb. 1, 2016 The origin of matter in the universe has puzzled physicists for generations. Today, we know that matter only accounts for 5 percent of our universe; another 25 percent is constituted of dark matter. ... read more
Jan. 29, 2016 Promising new calibration tools, called laser frequency combs, could allow astronomers to take a major step in discovering and characterizing earthlike planets around other ... read more
Jan. 28, 2016 New research is broadening perspectives on time and space. Scientists challenge the long-held presumption that time evolution -- the incessant unfolding of the universe over ... read more
Jan. 29, 2016 The moon was formed from a violent, head-on collision between the early Earth and a 'planetary embryo' called Theia approximately 100 million years after the Earth formed, ... read more
Jan. 28, 2016 New Hubble telescope observations suggest that a high-velocity gas cloud was launched from the outer regions of our own galaxy around 70 million years ago. Now, the cloud is ... read more
Jan. 26, 2016 Antihydrogen is a particular kind of atom, made up of the antiparticle of an electron -- a positron -- and the antiparticle of a proton -- an antiproton. Scientists hope that studying the formation ... read more
Sep. 10, 2014 Astronomers have defined the 'Venus Zone,' the area around a star in which a planet is likely to exhibit the unlivable conditions found on the planet Venus. The research will aid Kepler ... read more
Oct. 30, 2013 Kepler-78b is a planet that shouldn't exist. This scorching lava world circles its star every eight and a half hours at a distance of less than one million miles - one of the tightest known ... read more
Dec. 20, 2011 Astronomers have detected two Earth-sized planets orbiting a distant star. This discovery marks a milestone in the hunt for alien worlds, since it brings scientists one step closer to their ultimate ... read more