Engineers have had to come up with some interesting ways to generate oxygen for astronauts in the vacuum of space.

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The New England Aquarium’s retirement area for penguins offers specialized healthcare and a peaceful habitat for elderly birds.
Potential recruits had to answer questions like ‘Is genuine happiness a priceless treasure?,’ ‘Are avenues usually paved with oxygen?,’ and ‘Do you cordially recommend forgery?’
The typo in a 1928 opinion may have inadvertently influenced an unknown number of decisions to follow.
Scholars believe the tale—which has versions around the world—represents everything from the pain of motherhood to childhood jealousy (and some even think it might be based on real history).
There is a whole slew of everyday words in English that have origins in Irish and Gaelic.
Dig into the bizarre history surrounding California's Winchester Mystery House, one of the most notorious haunted houses in the U.S.
All five answers to the questions below have something in common. Can you figure it out?
Learn about the SAT and ACT differences, including test format, scoring systems, and duration.
This St. Patrick’s Day, revisit literary classics by Irish authors like James Joyce and Roddy Doyle, plus discover a few new writers along the way with this roundup.
A new study reveals that baleen whales, including humpbacks and gray whales, enrich oceans when they take a whizz.
The link between singer-songwriter Bob Dylan and writer Nora Ephron is mostly a forgotten footnote in pop culture history, but the story behind it all is absolutely fascinating.
The Milky Way is one of the biggest in the observable universe: Even if you traveled at the speed of light, it would take 100,000 years to go from one end of our home galaxy to the other.
Did you think ‘Ted Lasso’ was over? Think again: A fourth season of the feel-good series was just announced.
This St. Patrick’s Day, discover the origins of this old Irish idiom and how it all ties back to the Blarney Stone in Ireland.
‘Radíidin’ means “a time allegedly a holiday but actually so much a burden because of work and preparations that it is a dreaded occasion.” ‘Thehena’ is a word for “Joy despite negative circumstances.”