How cold is space? Does it ever drop to absolute zero, and what happens if you fall into it without a spacesuit? When you purchase through links on our site, we may earn an affiliate commission.

We preselected all newsletters you had before unsubscribing.

Every year, Santa Claus races around the globe in a matter of hours to bring presents to children all over the world. This is how countless films and stories describe it, but scientists have always ...

Physicists spotted a “terribly exciting” new black hole, doubled down on weakening dark energy, and debated the meaning of quantum mechanics. It in no way reflects my feelings toward Quanta staff ...

Discovering a machine that could somehow produce thrust without releasing propellant would be a game-changer for human space travel. There’s just one problem—such a device would defy the laws of ...