Space Screws Up Sperm’s Ability to Navigate Properly

Human sperm may get lost in space

Human sperm get lost in space, pioneering study finds

Sex in space? Sperm struggles to navigate without gravity, scientists find

How Not To Write About Space Exploration

Mail-In Ballots, the 2026 Election, and the Supreme Court

The Responsibility to Protect and the War Against Iran

Archives: April 2026

The Invention of Zero: How Ancient Mesopotamia Created the Mathematical Concept of Nought and Ancient India Gave It Symbolic Form

Pronatalism for Freedom-Lovers

Trump Can't TACO His Way Out of Iran

How to Believe in God

Protecting a Hero Too Long

The Doctors Who Say Spirituality Belongs in Medicine

Penny, a Doberman pinscher, wins the Westminster dog show

Virginia Woolf envisioned female intellectuals with the time and space to write. Hers was an enduring vision — but also a lonely one

Space Exploration Speaks to the Core of Who We Are

Astronaut Brains Change Shape in Space

Improving AI models’ ability to explain their predictions

A question for astrobiologists: If space dolphins or celestial jellyfishes live somewhere beyond Alpha Centauri, great — but then what?

I Track Space Debris As It Crashes to Earth

This Newly Discovered Asteroid, Almost Half a Mile Wide, Just Set a New Space Record

Schmidt Sciences Announces Plan for Lazuli, a Private Space Telescope

These ants navigate with a newly discovered ‘Moon compass’

NASA Mulls Ending Space Station Crew-11 Mission Early after Astronaut Suffers Medical Issue