How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

Plans for several new military telescopes atop the mountain are drawing strong opposition. But protests over other Maui ...

When we think of ice on Mars, we typically think of the poles, where we can see it visibly through probes and even ...

A team of 48 astronomers from 14 countries, led by the University of Massachusetts Amherst, has discovered a population of dusty, star-forming galaxies at the far edges of the universe that formed ...

For a few brief nights each year, you get a rare chance to watch a monster blink. The Event Horizon Telescope collaboration ...

Travel back 390 million years after the big bang to the ancient Maisie's Galaxy in this stunning 3D visualization that ...

Very Large Telescope observations of a free-floating rogue planet shows that it is "eating up gas and dust from its ...

One project critic said, “The military does not have a good record here, and as a citizen, I’m embarrassed for you." ...

It would be understandable if you stopped thinking as much about Pluto after it was “demoted” from being considered one of the nine planets sharing the Earth’s solar system to being classified as a ...

Early on Tuesday, Feb. 26, a rare annular solar eclipse created a “ring of fire” over Antarctica, while South Africa and ...

The shape of the cosmos depends on a balance of two competing forces: the pull of gravity and the expansion driven by dark ...