Space News

NASA astronaut Jessica Meir and France's Sophie Adenot will conduct the sixth all-female spacewalk outside the International Space Station today (Sept. 1), and you can watch it live.

Black holes are some of the most awe-inspiring and mysterious celestial objects in the universe. This is primarily because astronomers still dont understand the underlying mechanisms that drive black holes, including its...

On Aug. 24, technicians at NASAs Kennedy Space Center in Florida began installing the four RS25 engines in the core stage of the agencys Space Launch System (SLS) rocket that will carry the Artemis III crew into low Eart...

As any amateur astronomer can tell you, Venus is famous for its yellow coloration in visible light. But, ask a professional planetary scientist and they will tell you the strangest thing about Venus is how it appears in ...

Mercury, Venus, Mars, Jupiter and Saturn are all visible this September. Here's when and where to look.

Astronomers from the University of Manchester and the University of the Western Cape have directly detected an extremely faint radio signal from hydrogen gas billions of light-years away, opening a powerful new way to ma...

A photo of ESA astronaut Sophie Adenot on the outside of the International Space Station captures the staggering altitude at which the crewed laboratory orbits Earth.

A new AI model can monitor satellites and spot anomalies in their behavior, reducing the risk of in-orbit collisions, according to new research published in the journal Expert Systems.

Yesterday, on 31 August 2026, Samba reentered Earths atmosphere at 21:39:38 UTC / 23:39:38 CEST as the third of the four Cluster satellites.Samba had been lined up for a special 'targeted reentry' safely over the...

By combining roughly two decades of observations from NASA's Swift X-ray Telescope with radio monitoring, astronomers have caught a supermassive black hole at the heart of the Perseus Cluster suddenly flaring in X-ra...

The universe has been having fewer and fewer stellar "babies." Over the past 4.5 billion years, the rate of star birth has crashed to less than half of what it once was. But here's the twist: the most essenti...

The planet Mars is a cold and dry world completely devoid of life, but billions of years ago things were much different. This is when Mars had a much warmer interior than it does today, resulting in active volcanism that...

APOD Science APOD APOD: 2026 September 1 - A Todays APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photogra...

Scientists and philosophers have argued over the nature of time since well, since time immemorial. Is time real, or is it a convenient illusion? Why does time seem to flow in just one direction? In a new book called On T...