Space & Physics

The possibility of the asteroid 2024 YR4 impacting our planet might not be ruled out until 2028, raising the prospect we’ll need to prepare for the worst

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define

Observatories in Chile’s Atacama Desert, including the world’s largest optical telescope, could be blinded by light pollution and other unwanted side effects from the proposed construction of a renewable energy megaproject

Despite a recent request from Trump, NASA astronauts Suni Williams and Butch Wilmore were already scheduled to return to Earth on a Crew Dragon capsule this spring

Trump seems intent on freezing out professional scientists, especially those with strong academic research backgrounds. Instead, he is stocking the leadership of federal agencies with technologists and loyalists

Material retrieved from the asteroid Bennu by NASA’s OSIRIS-REx spacecraft shows that all the basic building blocks of life were astonishingly widespread in the early solar system

From space weather to science missions, there’s a lot to be excited about in heliophysics this year.

This year, from Earth’s perspective, Saturn’s rings will appear nearly edge on, making them almost invisible

A physicist weighs in on the fluid feline meme

Peculiar bursts of energy called chorus waves have been detected in deep space far from our planet, suggesting they could pose problems for long-distance space travel

Space traveler demographics have shifted over time

The best view yet of the Cassiopeia A supernova remnant reveals new secrets