A huge, powerful star explosion detonated in deep space last week — an ultra-bright conflagration that has astronomers scratching their heads over exactly how it happened.Full story
The red spot at the center of this image, based on data collected from March 10 to 29, represents what scientists believe is a gamma-ray nova.
The brightest gamma-ray burst ever seen in X-rays temporarily blinded Swift's X-ray Telescope on 21 June 2010. Full story. Credit: NASA/Swift/Stefan Immler
This is an image of an actual matter-antimatter annihilation due to an atom of antihydrogen in the ATHENA experiment, located on the Antiproton Decelerator at CERN since 2001. The antiproton produces four charged pions whose positions are given by silicon microstrips before depositing energy in C