Astronomy

Washing waste from the brain is an essential function of sleep—and it could help ward off dementia

Long dismissed as impossible, nerve regrowth is offering new hope for healing injuries and treating neurodegeneration

The universe has a habit of disproving “unassailable” facts

DNA holds our genetic blueprints, but its cousin, RNA, conducts our daily lives

While observing the Halley-type comet 12P/Pons-Brooks with ALMA and NASA's Infrared Telescope Facility, researchers determined that the comet's water is strikingly similar to the water on Earth.

Many answers to online research questions show signs of being generated by AI chatbots, raising doubts about the validity of behavioural data collected this way

Many answers to online research questions show signs of being generated by AI chatbots, raising doubts about the validity of behavioural data collected this way

More and more kids are turning to artificial intelligence chatbots for social interaction. We are scrambling to understand the pros and cons of their use

Bucking national trends in childhood vaccination rates, more teens are getting recommended shots, including for measles and whooping cough

The FAA has closed its investigation into SpaceX's Starship failure this spring and given the green light for Starship Flight Test 10 to proceed this weekend.

Portugal's space ambitions grow as Atlantic Spaceport Consortium secures approval to operate the nation's first launch center in the mid-Atlantic

A six-week period of extraordinary heat in 2024 melted 62 gigatonnes of ice on the Arctic archipelago of Svalbard, obliterating all previous melt records

A six-week period of extraordinary heat in 2024 melted 62 gigatonnes of ice on the Arctic archipelago of Svalbard, obliterating all previous melt records

Where are all of these meteors coming from?

Two Chinese astronauts spent more than six hours outside the Tiangong space station on Friday (Aug. 15), installing a debris shield on the third spacewalk of the Shenzhou 20 mission.

Any material used as a light sail is bound by very restrictive physical requirements. It has to be extremely light , can’t melt from the energy applied to it, and must bend, but not break, from that pressure. Various research groups around the world have been working on materials they believe will meet those requirements, and a new paper from researchers at the University of Pennsylvania describes experimental testing of what they believe to be the most functional light sail material yet developed.

A supermassive black hole in the act of awakening from slumber haas been detected by a team of astronomers. Using powerful radio telescopes, they observed this sleeping giant as it began to stir for the first time, offering an unprecedented look at how these stellar monsters come to life. Located 6 billion light years away, this giant has been dormant but suddenly roared to life just 1,000 years ago, revealing secrets about how the universe's most powerful forces shape entire galaxies.

Mercury is farthest from the sun in Earth's morning sky on Aug. 19.

A panel of judges has selected the 25 finalists in NASA and Freelancer's global contest to design a plush "zero-g indicator" to fly to the moon with the agency's Artemis 2 astronauts.

A SpaceX Falcon 9 rocket carrying 24 Starlink satellites launched from Vandenberg Space Force Base in California on Monday (Aug. 18). It was the company's 100th Falcon 9 launch of the year.