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NASA/Bill Ingalls

The Soyuz MS-27 spacecraft is seen as it lands in a remote area near the town of Zhezkazgan, Kazakhstan on Dec. 9, 2025, with Expedition 73 NASA astronaut Jonny Kim, and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky aboard.

The trio returned to Earth after logging 245 days in space as members of Expeditions 72 and 73 aboard the International Space Station. While aboard the orbiting laboratory, Kim contributed to a wide range of scientific investigations and technology demonstrations.

For more than 25 years, people have lived and worked continuously aboard the International Space Station, advancing scientific knowledge and making research breakthroughs that are not possible on Earth. The station is a critical testbed for NASA to understand and overcome the challenges of long-duration spaceflight and to expand commercial opportunities in low Earth orbit.

See more photos from the landing.

Image credit: NASA/Bill Ingalls

From a particle smasher encircling the moon to an “impossible” laser, five scientists reveal the experiments they would run in a world powered purely by imagination

From a particle smasher encircling the moon to an “impossible” laser, five scientists reveal the experiments they would run in a world powered purely by imagination

The rollout of a type of genetic technology called a gene drive for tackling malaria could be edging closer after a lab study supports its success

The rollout of a type of genetic technology called a gene drive for tackling malaria could be edging closer after a lab study supports its success

An excavation in Suffolk, UK, has uncovered pyrite and flint that appear to have been used by ancient humans to light fires some 400,000 years ago

An excavation in Suffolk, UK, has uncovered pyrite and flint that appear to have been used by ancient humans to light fires some 400,000 years ago

Making fire on demand was a milestone in the lives of our early ancestors. But the question of when that skill first arose has been difficult for scientists to pin down

An idea about the sun’s magnetic field called the terminator model could help predict dangerous space weather more accurately

From bonobos and rats to tickling robots, research is finally cracking the secrets of why we’re ticklish, and what that reveals about our brains

From bonobos and rats to tickling robots, research is finally cracking the secrets of why we’re ticklish, and what that reveals about our brains

As Australian teenagers lose access to social media, observers say there are still many unknown questions about the ban, which came into force on 10 December

As Australian teenagers lose access to social media, observers say there are still many unknown questions about the ban, which came into force on 10 December

The early universe was a pretty intense place to be. And not just “early” as in a few billion years ago. I mean early early, just a few seconds after the Big Bang. The universe is small, less than a meter across. It’s hot, with temperatures so high it doesn’t even make sense to say them – they’re just stupidly high numbers with no connection to our everyday existence.

The UK is actively trying to support the infrastructure to make it a significant player in the coming age of the space economy. It recently received 560 proposals to it’s National Space Innovation Program, and handed out £17M in grants to 17 different organizations following five main themes. One of those is an effort by the University of Leicester and The Welding Institute (TWI) to develop a robotic welder for use in repairing and manufacturing in space, as described by a new press release from the university.

Cross-species “defense pacts” help animals keep tabs on parasites and predators

Astronomers have discovered a filament 50 million light years long containing hundreds of galaxies, all spinning together. This immense structure, located 140 million light years away, challenges current models of galaxy formation by showing that large scale rotation can persist far longer and more coherently than theories predicted. The discovery offers a rare glimpse into how galaxies acquire their spin and reveals the Cosmic Web as a more dynamically active place than previously imagined.

NASA’s Perseverance rover has gathered groundbreaking Mars samples, but the mission to bring them home is facing serious challenges.

For centuries, Europeans thought that eternal daylight saturated the cosmos. The shift to a dark universe has had a profound psychological impact upon us

For centuries, Europeans thought that eternal daylight saturated the cosmos. The shift to a dark universe has had a profound psychological impact upon us