Space & Physics

Elon Musk and Donald Trump have announced ambitious plans to send a mission to Mars in 2026 and 2028. It’s not going to happen

A new map of cosmic expansion suggests that dark energy evolves over time, hinting that the universe doesn’t work the way we thought it did

Firefly Aerospace’s Blue Ghost commercial lander has gone dark on the moon as planned, but not before sending back spectacular views of the lunar sunset

Astronomers are racing to protect the dark skies as private companies seek to place large advertisements in Earth orbit

NASA astronauts Butch Wilmore and Suni Williams had been “stuck” at the International Space Station since June 6, 2024, after Boeing’s Starliner, the vehicle they rode to get there, ran into multiple hardware problems

The final results from the Atacama Cosmology Telescope offer the sharpest, most sensitive view of the early cosmos that anyone has ever seen

Four small, newly discovered worlds are less than six light-years away from Earth, and their discovery reinforces a cautionary tale from planet hunting’s prehistory

Dark matter could be an entire dark sector of the universe, with its own particles and forces

Firefly Aerospace’s Blue Ghost Mission 1 lunar lander snapped incredible photographs of the March 13–14 total lunar eclipse, as seen from the moon

The intriguing chemistry of a rock collected by the Perseverance rover could trace to microbial activity—or not

In colorful photographs of galaxies, stars, planets, and more, what you see isn’t necessarily what you get

D-Wave’s fresh claim that it has achieved “quantum advantage” has sparked criticism of the company—and of the scientific process itself