Every now and again, the night sky lights up with a spectacular explosion that blazes with the most energetic light our Universe can produce. Known as gamma-ray bursts, they can release in a few ...

Top Senate Democrats wrote a letter to President Donald Trump seeking more information about reports that his cabinet members ...

Senators expressed "extreme alarm" about the potential security ... about reports that members of his cabinet used the Signal app to convene a group chat to "coordinate and share classified ...