Earth and Mars are constantly moving, but don’t stay a constant distance apart. Plus, spacecraft don’t travel in a straight line to their destination.

This faraway, ancient ball of stars may have been captured from another galaxy that passed too close to the Milky Way.

A new study shows that the event that wiped out the dinosaurs caused only a small drop in shark and ray species at the same ...

With 274 confirmed moons as of March of 2025, Saturn is the solar system planet with the most natural satellites. By 1789, though, only five had been spotted: Titan by Christiaan Huygens in 1655, and ...

Though NASA was optimistic about launching four astronauts on a trip around the moon as early as Friday, the space agency is now looking at March after complications during a key preflight test. As it ...

Uranus stands stationary at midnight EST. Located in the constellation Taurus, the ice giant is visible after sunset and sets around 2 A.M. local time. Shining at magnitude 5.7, Uranus generally ...

Edward Charles Pickering graduated summa cum laude from Lawrence Scientific School at the age of 19, beginning a position as a physics professor at MIT a year later. During his 10 years there, he ...

The solar system’s two largest planets adorn the evening sky this month, while the smaller inner planets linger near the Sun and remain mostly out of sight. You’ll want to make Saturn your first ...

Their new study shows that Earth’s massive drop in temperature after the dinosaurs went extinct could have been caused by a large drop in calcium levels in the ocean. The study showed that the ...

Russell W. Porter had a fascination with telescope-making that proved contagious: When he moved to Springfield, Vermont, in 1919, many townsfolk quickly became interested in his hobby, prompting ...

For many years, planetary scientists have believed that water-rich meteorites arriving late in Earth’s history (OK, the time might be late to the researchers, but it’s still 4 billion years ago) could ...

NASA's IR space scope explores the Milky Way’s most prolific star-forming region, cracking open new secrets of how stars form ...