The moon

The lunar canyons Vallis Schrödinger and Vallis Planck are extraordinarily deep, and scientists now know the valleys were carved by bullet-fast moon rocks.

Wrinkle ridges that formed in the past 160 million years suggest recent geological activity on the moon.

The next Sputnik Moment will take place against the backdrop of great power competition, as it did in the 1950s. This time, the top contenders are the U.S. and China.

For 366 days, six analog astronauts lived and worked in a sealed environment in Russia, an Earth-based stand-in for interplanetary missions of the future.

Athena, the second lunar lander from Intuitive Machines, is set to launch soon, carrying NASA payloads and Nokia's first-ever moon-based 4G network.

As billions of people worldwide celebrate the Lunar New Year, astronauts aboard China's Tiangong space station sent home a holiday greeting.

Finland just became the Artemis Accords' 53rd member nation, bolstering NASA's efforts to establish peaceful and cooperative international space exploration.

The World Monuments Fund has added the moon to its watch list of 25 historic places that face major challenges and has called for preserving lunar heritage.

Astronauts placed six different American flags on the moon during the Apollo program. What became of those flags in the years since, and why were they controversial?