This was a surprise as the half-life for that particular xenon was a half-life of 18 billion trillion years. That’s more than ...

The SR-72 “Darkstar,” nicknamed the “Son of Blackbird,” is a highly secretive, unmanned hypersonic aircraft reportedly in ...

The precursors of heavy elements might arise in the plasma underbellies of swollen stars or in smoldering stellar corpses.

A Nobel Prize-winning anti-nuclear group launched an online memorial Tuesday for the 38,000 children who died in the US ...

When TODAY's Dylan Dreyer welcomes her third child, she'll be joining a special, and especially tired, club. Three is the most stressful number of children, according to a TODAY Parents survey of ...