Human Spaceflight

The ongoing practice of sending humans to orbit, living in space, and returning them safely to Earth.

Articles about Human Spaceflight

Space
Viruses Seem Stronger in Space

Viruses Seem Stronger in Space
Multiple lines of research — astronaut monitoring, bacterial studies on the ISS and laboratory experiments simulating microgravity — show microbes behaving differently in orbit. S…
Space
Artemis II Returns Humans to Deep Space

Artemis II Returns Humans to Deep Space
NASA is preparing Artemis II, a 10-day crewed lunar flyby slated for as early as February 2026 that will send four astronauts farther from Earth than anyone since 1972. The missio…
Space
Artemis II: Humans Return to Deep Space

Artemis II: Humans Return to Deep Space
NASA is preparing to send four astronauts on Artemis II, the first crewed mission beyond low Earth orbit since 1972, with a launch window opening in February 2026. The 10-day luna…
Space
Nine Ways Space Can Kill You

Nine Ways Space Can Kill You
A scientist's guide to the nine most credible, documented hazards of spaceflight — from vacuum exposure and radiation to fires, debris strikes and psychological collapse — and the…
Space
Ax-4 Launch Grounded After ISS Leak

Ax-4 Launch Grounded After ISS Leak
Axiom Space's Ax-4 private mission, scheduled to launch on a SpaceX Falcon 9, was paused after NASA and Roscosmos detected a new pressure signature in the ISS's Russian Zvezda mod…