Human Spaceflight
Latest about Human Spaceflight

Spaceflight is hard on the heart, yet artificial ones grow better in space than on Earth
By Tereza Pultarova Published
The human heart shrivels away in space, but researchers have found that mini-hearts grown from human stem cells sprout in space significantly faster than in labs on Earth.

These astronauts are trying to uphold the US Constitution: 'We need to make sure that people are using facts and evidence'
By Chelsea Gohd Published
When we build things on wonder, it naturally opens the mind.

Artemis 2 heat shield is a sunken treasure in the ocean | Space photo of the day for April 28, 2026
By Chelsea Gohd Published
This eerie image shows the heat shield following splashdown.

Astronauts photograph Lyrid meteor shower from ISS | Space photo of the day for April 21, 2026
By Chelsea Gohd Published
NASA's Jessica Meir spotted the Lyrids from aboard the space station.

Astronauts face grip strength challenge in space and on Earth, scientists find
By Chelsea Gohd Published
It turns out that living in space can have a lasting impact on how your brain works, researchers have found.

NASA astronauts joke around with an optical illusion on the ISS | Space photo of the day for April 15, 2026
By Chelsea Gohd Published
Two NASA astronauts had some fun during the ISS' capture of a robotic cargo spacecraft on April 13, pretending to hold onto it from into the station.

Artemis 2 spies a crescent Earth above the moon's horizon | Space photo of the day for April 10, 2026
By Anthony Wood Published
Earth shines above the lunar horizon in a new Artemis 2 photo.

Artemis 2 astronaut poses for epic selfie | Space photo of the day for April 9, 2026
By Anthony Wood Published
Astronaut Christina Koch poses with zero-gravity indicator "Rise" in the viewport of the Artemis 2 Orion spacecraft.

Artemis 2 captures historic 'Earthset' photo | Space photo of the day for April 7, 2026
By Anthony Wood Published
Artemis 2 astronauts saw Earth slip from view during their lunar flyby on Flight Day 6.

Astronaut Victor Glover is the latest in a long line of Black American explorers − including York, the enslaved man who played a key role in the Lewis and Clark expedition
By Craig Fehrman Published
Glover's achievement is worth celebrating. But it's also worth remembering that he belongs to a long and underappreciated history.
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