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We learn constellations from diagrams that stay conveniently upright. The real sky has other ideas — as I discovered when Orion returned looking distinctly wonky.

Northrop Grumman's robotic Cygnus XL spacecraft departed the International Space Station today (Oct. 9) after a six-month stay.

On Oct. 9, 1992, a space rock the size of a bowling ball fell out of space and crash landed on a woman's Chevy Malibu in Peekskill, New York. Here's why it mattered.

A new genetically engineered microbe may one day help humanity settle Mars, a nonprofit biotechnology research startup suggests.

According to some reports, at the height of the Cold War, the Soviet Union mounted a rapid-fire cannon aboard a secretive military space station.

It's never too early to plan your Halloween outfit — here are some of the best space-themed Halloween costumes on the web.

Dark clouds swirl across a star-speckled sky as the Milky Way stretches above La Silla Observatory in Chile's Atacama Desert.

President Trump just gave Elon Musk and a handful of other tech luminaries the National Medal of Science, the highest honor the U.S. can bestow on a scientist or engineer.

"I think motherhood eventually has to become a bigger part of the conversation if we're serious when we talk about humanity having a sustained presence beyond Earth."

Multiple CMEs could give the northern lights a boost across the northern US from Oct. 9, with further geomagnetic activity possible into the weekend.