More Astronomy Science U.S. Stories

The Buzz: OSIRIS-REx delivers its payload

The decades-running space mission dropped a sample from the asteroid Bennu Sunday, kicking off the next phase of the project.

The Buzz: What to expect when OSIRIS-REx returns to Earth

The seven-year mission to harvest samples of an asteroid is months from completion, and scientists are ready for the next step.

Winter solstice: Why isn't the shortest day of the year in the deepest part of winter?

It may be the day with the fewest hours of sunshine for the global north, but there is another source of heat to consider.

UA scientists still learning from Apollo 17 rocks 50 years ago

University of Arizona lunar scientists are still discovering details from the last manned moon mission's rocks.

Ukraine Crisis, Other Global Politics Imperil OSIRIS-REx Mission

Team plans to use rocket which runs on a Russian-made engine; Canadian government funding couldn't be secured.

OSIRIS REx Moves From Planning Phase to Fabrication

Latest NASA project for the UA is one step closer to launch; its ultimate goal is bringing back a piece of an asteroid to Earth.

UA-Led Research Team Finds New Planet

Gas giant discovered orbiting around star outside Earth's solar system; relatively young at 13 million years old.

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