Medically evacuating an astronaut from space is difficult and expensive, and a new model predicts that one in three long-duration moon missions may require it

Genetic analysis shows that microbes growing inside the International Space Station have adaptations for radiation and low gravity, and may pose a threat to astronauts

Nearly imperceptible quantum flickers used to limit how precisely we could detect the way space-time ripples, but squeezing the laser light used in detectors overcomes this and doubles the number of gravitational waves we can see

See the world's best space images from the Astronomy Photographer of the Year 2024 award

Exoplanets in binary star systems usually orbit both stars, but astronomers have now spotted three planets orbiting one or the other star in a pair

As the space industry evolves, we need a new set of international regulations to decide who is responsible for safety, the number of satellites in space, and more

Spanning 23 million light years, or 220 Milky Way galaxies, a set of giant, newly discovered black hole jets known as Porphyrion may change our understanding of black holes and the structure of the universe

The second-closest planet to the sun is more geologically active than we thought and could have more than 17,000 venusquakes a year

The long-standing mystery of how supermassive black holes grew so huge so quickly could be solved by decaying dark matter

The success of the all-civilian spacewalk on SpaceX’s Polaris Dawn mission shows that private space flight is starting to catch up with government space agencies

The Cassini mission’s samples from Saturn’s moon Enceladus have signs of various organic molecules that could be among the ingredients needed for life to get started

A groundbreaking civilian spacewalk saw two astronauts partially exit a SpaceX Crew Dragon capsule wearing a brand new design of spacesuit. Every previous spacewalk completed before this was performed by government-trained astronauts.

If you were standing on Mars as it was hit by a solar flare, you might be able to see an aurora just like on Earth

Gas bubbles on the surface of a star have been observed for the first time in detail outside our solar system, and they are 75 times the size of our sun

In between two spacecraft visiting Jupiter’s moon Io, a volcano spreading material over hundreds of kilometres has appeared

Five satellites due to launch this week could be brighter than most stars, and astronomers fear the growth of such constellations could have a catastrophic impact

Four private astronauts are riding a SpaceX Crew Dragon capsule further from Earth than any human since 1972, where they will attempt the first ever civilian spacewalk

Using images captured by the European Space Agency’s Mars Express spacecraft, researchers have created a cloud atlas of Mars, to better understand the climate of the Red Planet

News of the asteroid 2024 RW1 impacting near the Philippines may have come as a shock this week, but space agencies and astronomers around the world are keeping an eye out to protect us

Comet C/2023 A3, also known as Tsuchinshan–ATLAS, is expected to grace our skies from mid-October. Abigail Beall is hoping for a dazzling display