In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

The number of satellites is increasing rapidly, which is becoming a problem for astronomy. An unexpected TV signal in ...

The night sky is an object of fascination for many, and the Princeton community is no exception. On select nights throughout ...

The annual event celebrates the discovery of the little planet with a big heart and other scientific advances at Flagstaff, ...

The rocket's first stage will come back to Earth about eight minutes after liftoff, landing on a drone ship stationed in the ...

The supermassive black hole at the center of the Milky Way appears to be having a party—and it is weird, wild and wonderful.

But the mission will also bring something that’s never been installed on the moon or anywhere else in space before—a fully ...

A team of astronomers looking at data from the Murchison Widefield Array radio telescope in Western Australia were met with a ...

New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead ...

"It feels like something out of science fiction," said European Southern Observatory astrophysicist Julia Victoria Seidel.

The University of Michigan in Ann Arbor reports the first space mission led by the U-M Department of Astronomy is scheduled ...