For its 100th birthday, the Schrödinger equation is getting a glow-up from quantum physicists A century ago, Erwin Schrödinger came up with an equation that says how the quantum world behaves. Now ...

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.

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. January 12, 2026 Add ...