Before the ribbon-cutting for the solar system walk on the Columbia Greenway Rail Trail on Nov. 29, created by WHS Astronomy ...

Later in December, the 3I/ATLAS interstellar comet will get as close to Earth as it ever will. Here's what to know.

Measuring the time discrepancy between Earth and Mars will help make future navigation and communication systems on the Red ...

Scientists find that two hot stars passed near our solar system 4.4 million years ago, altering nearby interstellar clouds.

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, ...

Observations with the instrument SPHERE at ESO's Very Large Telescope have produced an unprecedented gallery of "debris disks" in exoplanetary systems.

December is the month that fans of 3I/ATLAS have been waiting for as the interstellar comet makes its closest approach to ...

On Thursday (Dec. 4), NASA shared the latest dramatic image of 3I/ATLAS taken by the Hubble Space Telescope. The photograph, ...

Gravity and motion make time pass faster on Mars than Earth, reshaping navigation, communication, and future crewed missions.

"These images are not just pretty." ...

New high-contrast images from SPHERE show a stunning variety of debris disks shaped by collisions of tiny planet-building ...

One of the most intriguing events of the month is the perihelion — or closest approach to Earth — of Comet 3I/ATLAS on ...