NASA is about to launch a space observatory that could help settle some of the biggest mysteries in modern astronomy. The Nancy Grace Roman Space Telescope will study how the universe began, what it ...

Barnard’s Star hosts four hostile small planets whose unusual chemistry and orbital rhythm reveal how compact planetary systems can form and survive.

This illustration shows the system around the star CD-35 2722, with the newly found moon-like object at the center. Credit: ESO/M. Kornmesser. Astronomers have found what may be the first convincing ...

NASA's record-breaking New Horizons spacecraft has awoken from a 321-day hibernation in "good health" as it resumes unprecedented science at the solar system's edge.

What has eluded detection so far have been exosatellites: moons orbiting those remote planets. Our solar system is home to a ...

The object about 72 light-years away from Earth could be the first satellite discovered outside our solar system.

Every June 30th, Asteroid Day marks the anniversary of the 1908 Tunguska impact and turns global attention to the science of near-Earth objects and planetary defense. But asteroids and the meteorites ...

After examining a meteorite that crashed to Earth in 2024, NASA is uncovering new details about ancient water, the chemical ...

Far beyond Neptune, strange orbital patterns suggest the Solar System may still contain a massive unseen planet. Planet 9 ...

Voyager 1 is about to set a new record, reaching 1 light-day from Earth, having passed through the heliosphere into ...

Researchers probe the geochemistry of the moon, Mars, asteroids, and water worlds to understand our home and plan for future space missions ...

A discovery that caught the attention of Chinese netizens on Sunday was that astronomers have confirmed an exoplanet named ...