Flying at the very tip-top of Earth's atmosphere, SOFIA has almost as clear a view as space-based telescopes.
Find out what's up in your night sky during November 2019 and how to see it in this Space.com stargazing guide.
The Yerkes Observatory is more than 120 years old and is most known for contributing to discoveries about stellar motion and cartography.
A look at the U.S. Air Force's unmanned X-37B space plane, which has flown four secret, long-duration missions in Earth orbit to date.
Home to the largest fully steerable telescope in the world, Green Bank Observatory has a long history of leading the world in radio astronomy.
When the UAE president announced that his country would make a satellite to study Mars' atmosphere in unparalleled detail, he set an unprecedented goal for the Arab world.
It's been a great, enormous storm for more than a 100 years. But will Jupiter's Great Red Spot last much longer?
Alexei Leonov was the first person to leave the relative safety of his spacecraft and experience the silence of space.
There used to be nine planets. Now there are eight, or maybe there are nine after all. Whichever you prefer, here is a list of them in the order they appear in the solar system.
The forces and interactions we see and experience every day seem infinite. But they all stem from just four fundamental forces of nature.
If you could journey through the cosmos' most monstrous objects, what tales — if any — would you be able to tell?
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