Astronomy

Russia is readying its Bion-M No. 2 biosatellite for a planned Aug. 20 launch. The mission will send 75 mice and other specimens on a monthlong mission to Earth orbit.

For decades, astronomers have searched for signs of extraterrestrial intelligence using radio telescopes and optical instruments, scanning the skies for artificial signals. Now, researchers are taking a different approach, this time looking much closer to home for alien artefacts that might already be in our Solar System.

Unexpected X-ray polarization challenges long-held ideas about how black holes behave.

A quantum broadcasting system would end up sending slightly different information to every receiver – and efforts to sidestep this problem are too inefficient for practical use

A quantum broadcasting system would end up sending slightly different information to every receiver – and efforts to sidestep this problem are too inefficient for practical use

NordSpace begins building its new orbital spaceport on the Canada's east coast, as the company prepares for its first suborbital rocket launch.

New James Webb Space Telescope observations of the third world in the seven-planet TRAPPIST-1 system rule out a variety of atmospheres.

The post No Evidence for Atmosphere on Trappist-1d appeared first on Sky & Telescope.

Connecting tubes between bacteria and a kind of microbe called archaea may reflect a symbiotic relationship that led to complex cells more than 2 billion years ago

Connecting tubes between bacteria and a kind of microbe called archaea may reflect a symbiotic relationship that led to complex cells more than 2 billion years ago

Going boldly where someone has gone before! The "Star Trek" prequel series is overflowing with characters who debuted in the 1960s.

On Episode 172 of This Week In Space, Rod Pyle and guest host Rick Jenet are joined by Erika Alden DeBenedictis to discuss how terraforming Mars might work.

On Episode 171 of This Week In Space, Rod Pyle and guest host Isaac Arthur are joined by Rick Jenet to discuss the United Nations Office of Outer Space Affairs (UNOOSA).

The members of Expedition 73-"B" settle in and get busy conducting science research on board the International Space Station.

Former NASA astronaut Shane Kimbrough is photographed during a spacewalk in January 2017.

In this quiz, you’ll test your cosmic knowledge by matching each moon to the planet it calls home.

A bright flash of radio waves from 3 billion years after the big bang is illuminating parts of the universe that astronomers can’t normally see

A bright flash of radio waves from 3 billion years after the big bang is illuminating parts of the universe that astronomers can’t normally see

There's a gap in black hole masses, and experts believe here is where 'lite intermediate black holes' reside.

Colossal Biosciences bold announcements about its project to replicate dire wolf traits have drawn criticism from many scientists, but the billion-dollar firm is not backing down

Week in images: 11-15 August 2025

Discover our week through the lens