More ancient viruses lurk in our DNA than we thought and other top stories.

• More ancient viruses lurk in our DNA than we thought

  Think your DNA is all human? Think again. And a new discovery suggests it's even less human than scientists previously thought. Nineteen new pieces of non-human DNA—left by viruses that first infected our ancestors hundreds of thousands of years ...

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• First Supernova Shock Wave Image Snapped by Planet-Hunting Telescope

  

  For the first time, scientists have seen the shock wave emanating from an exploding star in visible light. Using NASA's planet-hunting Kepler Space Telescope, researchers saw the shock wave coming from a massive star explosion (a supernova) that came into Kepler's view in 2011. The star that ended its life as a supernova is named KSN 2011d, which is nearly 500 times the diameter of the sun, and located about 1.2 billion light-years away. The shock breakout lasted only about 20 minute..

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• Space Station Cargo Launch Tonight May Be Visible Along East Coast

  

  People in eastern North America have a chance to see a private cargo spacecraft launch toward the International Space Station tonight (March 22). Orbital ATK's robotic Cygnus spacecraft is scheduled to launch atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station in Florida tonight at 11:05 p.m. EDT (0305 GMT on Wednesday, March 23). You can watch the liftoff live here at Space.com, courtesy of NASA TV. The launch will take Cygnus on a path nearly parallel to th..

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• This little flea -- and its huge appetite -- could ruin the Great Lakes

  

  It's just a flea, no bigger than a speck. But it eats like a hog. That's a problem because what the invasive spiny water flea from Europe and Asia likes to eat most is one of the coolest and most beneficial life forms in the food chain of Lake Mendota, the Daphnia flea. It grazes on algae, and the more it eats, the better the lake's water quality and visibility, making recreational pastimes such as swimming and fishing more pleasurable.  Since their arrival in cargo ships that sucked up fresh w..

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A late dunk, a last-second 3 add to Cincinnati's heartbreak .	5 cheetahs born in rare C-section procedure at Cincinnati Zoo .
Three Trump Protesters in Arizona Arrested, While Demonstrators in NYC Detained .	Cincinnati Zoo's cheetah cubs in critical care .