A photon from the biggest cosmic explosion since the Big Bang should not have reached Earth, according to Einstein. Now scientists may know how it did.

Add Yahoo as a preferred source to see more of our stories on Google. An outflow of matter from the helium nova V445 Puppis. Using NASA's long-serving Hubble Space Telescope, astronomers have ...

A sprinkling of radioactive plutonium atoms hidden in the ocean floor may trace back to a cosmic cataclysm more than 100 million years ago. What's more, that stardust appears to still be raining down ...

Astronomers have used the Hubble Space Telescope to capture cosmic 'bullets' streaming from V445 Puppis, a unique stellar explosion in the Milky Way firing clumps of gas into space at a blistering 20 ...

WASHINGTON - Astronomers have witnessed a cosmic explosion bigger and brighter than any except the Big Bang. Orbiting telescopes got the fireworks show last spring when they spotted what is known as a ...

A photon from the biggest cosmic explosion since the Big Bang, the gamma-ray burst nicknamed "the BOAT," should not have reached Earth, according to Einstein. Now scientists may know how it did.

Add Yahoo as a preferred source to see more of our stories on Google. (Craig Taylor/iStock/Getty Images Plus) A sprinkling of radioactive plutonium atoms hidden in the ocean floor may trace back to a ...