Thrifting can be a joyous pastime–a hobby that brings you dopamine and good deals, especially when you find rare steals. For ...

"It's an elegant answer, really, because we thought it was a tiny galaxy full of many separate cold stars, but it's actually, effectively, one gigantic, very cold star." ...

Mathematical quirks of our universe have led some cosmologists wonder whether the cosmos was actually born in a black hole.

Opinion: Leaked video of drone strike on a mysterious sphere off Yemen sparks debate: Alien tech, a foreign drone, or ...