Today in the history of astronomy, Mars comes within a record-breaking distance of Earth.

X-ray scans reveal rare chemical signatures in asteroid grains that hint at water, organics and the building blocks of life.

Throughout the Earth’s precessional cycle, different stars serve as a pole star, including Thuban, Kochab, Polaris, and Vega.

Clues about how worlds like Earth may have formed have been found buried at the heart of a spectacular "cosmic butterfly." With the help of the James Webb Space Telescope, researchers say they have ...

A cosmic jet aimed at Earth reveals how blazars hurl particles to extreme energies, solving a long-standing mystery.

Astronomers report that the Atacama Large Millimeter/submillimeter Array ( ALMA) has discovered traces of oxygen in the very ...

NASA has successfully launched a mission to explore the interactions between the Sun’s and Earth’s magnetic fields. The Tandem Reconnection and Cusp ...

A groundbreaking discovery in the field of exoplanet research has revealed a fascinating new planet orbiting a star just 124 ...

Asteroid Bennu—the target of NASA's OSIRIS-REx sample return mission, led by the University of Arizona—is a mixture of ...

An automated data-sharing system co-developed by SpaceX and American radio astronomers promises to protect radio telescopes ...