When an interstellar visitor slices through the solar system, astronomers usually have to make do with a fleeting, side-on ...

In 2026, there will be journeys to the moon and Mars, new visions of the cosmos and a solar eclipse that might be worth ...

How did life begin on Earth? While scientists have theories, they don’t yet fully understand the precise chemical steps that ...

New observations of a nearby red giant star suggest that a long-standing explanation for how giant stars spread life’s essential elements through the galaxy may be incomplete. Starlight pushing on gra ...

The newly identified cluster of Kuiper Belt objects lies about 4 billion miles from the Sun, offering fresh clues about how ...

BepiColombo will arrive in 2026 to uncover the planet Mercury, and unravel how a planet as small, dense, and in such an odd ...

Solar sails have some major advantages over traditional propulsion methods—most notably, they don't use any propellant. But, ...

A colossal Martian volcano defies everything we know about planetary geology. Hidden clues beneath its frozen summit hint at ...

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

The Artemis II mission, which could launch as early as February, is expected to send four astronauts on a trip to the moon, ...

Across the Milky Way and beyond, planetary systems appear to fall into a few recurring blueprints, and recent exoplanet ...