For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...

The space-based observatory will scan the cosmos in 102 colors we can't see to unlock the secret history of the universe.

Pointed away from Earth about 404 miles overhead, the orbital observatory will circle the planet from north to south about 14 ...

NASA's SPHEREx space observatory has spent the last six weeks undergoing checkouts, calibrations, and other activities to ...

A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from ...

The NASA New Horizons spacecraft's extensive observations of Lyman-alpha emissions have resulted in the first-ever map from ...

although a sky map can be very useful, and a good telescope or binoculars will enhance some experiences and bring some otherwise invisible objects into view. You can also use astronomy accessories ...

Robot lawnmowers have been around for several decades, and with them the heady promise of spending the summer with your feet ...

A Soviet-era spacecraft meant to land on Venus a half century ago is expected to plunge uncontrolled back to Earth within days.

NASA’s Nancy Grace Roman Space Telescope is gearing up to unlock the deepest secrets of the universe with three ...

However, other point-like objects in the radio sky also twinkle ... “scintillation arcs,” which provide a three-dimensional map, of plasma structures in the galaxy that are impossible to ...