Federal funding is about to run out for 19 active space missions studying Earth's climate, exploring the Solar System, and probing mysteries of the Universe.

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an orbit stretching 25,000 years and a size that may qualify it as a dwarf ...

Astronomer and Pluto mission leader S. Alan Stern explores how the field has transformed during his decades-long career.

The recently discovered interstellar object 3I/Atlas is set for a close flyby of Mars in October, where it can be observed by ...

Comet 3I/ATLAS is the third confirmed interstellar object to pass through our solar system, following the discovery of ...

Named 3I/ATLAS, the comet is only the third known interstellar object to enter our solar system, and it's the largest and ...

Solar Orbiter flew closer to the Sun than ever before. This proximity let it capture electrons in pristine conditions.

A new trans-Neptunian object, 2017 OF201, has been found with a vast orbit and potential dwarf planet size. The finding hints ...

Indian students have developed a new system that could give an early warning about an incoming solar storm from the Sun. The ...

University of Bristol astrophysicists are helping shed new light on an Earth-sized exoplanet 40 light years away where liquid ...

In 40,000 years, long after its mission is over, NASA's Voyager 1 spacecraft will have a close encounter with Gliese 445. It ...

The peculiar trajectory and uncertain origin of interstellar object 3I/ATLAS have sparked scientific debate about its natural or technological origins.