A meteor cluster reveals an asteroid disintegrating near the Sun. These observations help uncover hidden asteroids and ...

NASA's Nancy Grace Roman Space Telescope will be unveiled as the agency prepares to launch the observatory into the cosmos ...

Aristotle's views on the nature of the cosmos dominated the Ancient Greek world. He argued that there's only one world, at ...

Spring is here and with the evening air growing warmer, it's finally time to get back outside and enjoy the stars. It's also ...

The moon's orientation changes quite dramatically across time and between places, largely due to differences in perspective.

Artemis II commander Reid Wiseman looks out one of the Orion spacecraft’s main cabin windows at the Moon ahead of the crew’s historic lunar flyby on Monday. (NASA via Getty Images | Getty Images) The ...

The Artemis II astronauts broke the record for the farthest distance from Earth ever traveled by humans on Monday, becoming the first to lay eyes on some parts of the far side of the moon. The ...

The Artemis II astronauts wrapped up their lunar flyby as they continue their journey back to Earth on Tuesday, bringing with them rich celestial observations including little-known lunar craters, a ...

Artemis astronauts at the outer edge of human space travel had an emotional moment Monday as they proposed to name a crater in honor of the deceased wife of mission commander Reid Wiseman. "It's a ...

Each spring, amateur astronomers attempt the ultimate stargazing challenge—an overnight quest to spot every galaxy, nebula, and star cluster in Charles Messier’s famous catalog. Photographer Alan Dyer ...

A conjunction occurs when two or more celestial bodies appear near one another from our perspective on Earth. The event is scheduled to be visible on the night of Sunday, March 8, after sunset in the ...