This NASA animation shows gamma rays (magenta) arise when accelerated particles in the explosion's shock wave crash into the red giant's stellar wind. DHS Secretary says entire southern border wall to ...

A flash of light followed by an explosion early Tuesday rattled residents in parts of Northern New Jersey, but police and other officials say they are unsure of the source. The blast occurred at 1:54 ...

“Bazinga?” The term, pilfered from popular culture, might just capture the befuddlement that lingers around the Big Bang. For decades, the picture of a cosmic firecracker matter exploded outward from ...