Astronomy

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Φsat-2, a miniature satellite, has completed its commissioning and has begun delivery of science data, using algorithms to efficiently process and compress Earth observation images, as well as detect wildfires, ships, marine pollution and more.

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All its parts have been built and put together. It has been wrapped in shiny gold insulating foil. Its launch is getting closer. But the Smile spacecraft had one major phase to pass before it could be certified ready for space – and it involved testing, testing and yet more testing.

The U.S. government's "One, Big Beautiful Bill" Act finds funding for Artemis and Lunar Gateway, but nearly half of NASA's science missions are on the chopping block ahead of the 2026 budget.

Bird flu fears have focused on the poultry and dairy industries and human health. But wild animals are threatened, too—at scales no one fully understands

The H5N1 avian flu is circulating in cows and other mammals. Whether it will make a permanent leap to humans is another question

Your favorite word game with a twist of science

Bird flu was nearly everywhere in the U.S.—in chickens, cows, pet cats and even humans. Cases have gone down, but experts warn that it hasn’t disappeared

Influenza viruses like bird flu can mix and match their genomes, and this has played a role in at least three of the last four flu pandemics

The largest Mars rock on Earth will soon be auctioned off in NYC, and could sell for at least $2 million.

Mathematicians have solved a decades-old problem in knot theory, discovering that linking two knots together can actually produce a knot that is easier to untie – the opposite of what was expected

Mathematicians have solved a decades-old problem in knot theory, discovering that linking two knots together can actually produce a knot that is easier to untie – the opposite of what was expected

Newly discovered “Gwada-negative” is the rarest of 48 known blood groups

"It remains possible that there are other unseen planets in the system. The challenge is finding them!"

When large masses of water are moved from one place to another, this changes the shape of Earth and leads to a phenomenon called true polar wander

The four astronauts of Axiom Space's latest private mission have safely returned to Earth after more that two weeks aboard the International Space Station.

Without enough liquid water on the surface, a planet's atmosphere can become choked with carbon dioxide, raising temperatures to a level beyond what is survivable for all known life

Without enough liquid water on the surface, a planet's atmosphere can become choked with carbon dioxide, raising temperatures to a level beyond what is survivable for all known life

After 20 days in space, ESA project astronaut Sławosz Uznański-Wiśniewski and his Axiom Mission 4 (Ax-4) crewmates returned safely to Earth today, 15 July 2025.