Ever seen a sunrise from the moon? These space images will leave you marveling at our planet and our universe.

What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy ...

Sometimes, the simplest explanation is the best one," Professor Gupta said. "Maybe the universe’s biggest secrets are just ...

This article, originally titled "The Man Who Discovered the Universe," is from the Summer 2025 issue of Air & Space Quarterly ...

For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...

A space professor who helped design a groundbreaking satellite has said it will "profoundly change our understanding of the ...

We know how the universe began. An event we call the Big Bang started it all about 13.8 billion years ago. How the universe ...

For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the ...

A surprising new study reveals that the first stars appeared in a pre-heated universe, challenging earlier ideas about early cosmic conditions.

Seeking endorsements for her new book, Chanda Prescod-Weinstein finds herself staring at fundamental questions of space, time ...

Pfalzner's models show that interstellar objects — bodies ejected from other star systems — could be captured by these planet ...