Four astronauts are about to fly around the moon on NASA's Artemis 2 mission, and you can join them by adding your name to ...

Research into Jupiter’s moons shows Io and Europa did not evolve apart but formed with opposite compositions from the ...

Starting Jan. 21, Canadians can see a rare celestial event as six planets line up in the evening sky, mostly visible to the ...

Looking for a sky event this week? Check out our full Sky This Week column. January 20: Comet Schaumasse slides by some ...

By a small margin, Titan is the second-largest moon in the solar system, and is also the only moon with a thick atmosphere.

The U.S. is once again challenging itself to go to the moon, and this time, NASA and the Trump administration want to ...

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor ...

Kicking off the year's cosmic wonders is the moon, drawing the first astronauts to visit in more than 50 years as well as a ...

Looking for a sky event this week? Check out our full Sky This Week column. January 19: Where Messier started: M1 Comet ...

Scientists have discovered a 300-year-old giant black coral off New Zealand. Its massive size and age reveal hidden deep-sea ...

The JWST tracks a path right-to-left across the eastern horizon in the hours following sunset in January. On Jan. 19 it will be located to the left of the star Nu Orionis in the raised right arm of ...