Solar system

A daring 10-day voyage took four astronauts on a loop around the moon and set the stage for future forays to the lunar surface

The U.S. space agency’s Skyfall project calls for sending robotic helicopters to Mars on a nuclear-powered spacecraft before the end of Donald Trump’s presidency

A century after Robert Goddard’s first-ever launch of a liquid-fueled rocket, two NASA experts weigh in on what his legacy still holds for spaceflight’s future

Once unfathomable, the milestone of a single company having 10,000 satellites operating overhead signals that the era of mega constellations is here to stay

The sun rode a massive galactic migration wave to the Milky Way’s suburbs

An obscure lunar region called Rimae Bode is emerging as a high-priority landing site for China’s first crewed moon mission

The science of the zodiac is more intriguing than astrology would have you think

This weekend will offer a chance to see a rare celestial event—Mercury, Venus, Jupiter, Saturn, Uranus and Neptune all aligned in the sky like beads on a string

Fresh observations from the James Webb Space Telescope show how vivid auroras surge through Uranus’s tilted magnetic field

A study published today helps explain how “planetesimals”—the building blocks of planets—came to be

Scientists have spent decades searching for the final resting place of Luna 9, the first spacecraft to soft-land on the moon. Now they’re on the cusp of finding it

Astronauts are flying to the moon for the first time since 1972, and scientists are preparing specialized space suits for the next milestone—landing there