Solar system

The U.S. is preparing to send astronauts to the moon for the first time in 50 years

The launch of NASA’s Artemis I mission will also be the start of the first deep-space rendezvous to be conducted by a solar-sail-propelled spacecraft

When humans return to the moon, they’ll likely visit one of these 13 regions near the moon’s south pole

Surprisingly, some worlds can survive being engulfed by a sunlike star when it swells to become a red giant

The Space Launch System rocket could lift off on its voyage to lunar orbit as early as late August

A new investigation of unidentified aerial phenomena could have bigger impacts on atmospheric science than on astrobiology

“Decolonizing” the search for extraterrestrial intelligence (SETI) could boost its chances of success, says science historian Rebecca Charbonneau

Although modest in scope, a NASA research project reflects shifting attitudes toward the formerly taboo subject of UFOs

Long considered trivial, the effects of rocket launches and reentering space debris on global warming and ozone loss could soon become too large to ignore

Seismology has been a long-overlooked tool in planetary exploration, but the success of NASA’s InSight lander has reignited the field

Organisms on Earth produce a wide array of durable “biofluorescent” materials. If those on other planets do, too, the Compact Color Biofinder should be able to detect them

Starting in 2023, control of the summit will shift from the University of Hawaii to an 11-member oversight authority that includes Native Hawaiian voices