NASAcronyms: How OSIRIS-REx Got Its Name

osiris-rex
An artist's interpretation of NASA's asteroid-sample mission OSIRIS-REx, which will rendezvous with the near-Earth asteroid designated 1999 RQ36 in 2020. The mission is expected to launch in 2016. CREDIT: NASA/Goddard/University of Arizona

If Osiris, ancient Egyptian god of the underworld, and Tyrannosaurus rex, king of the dinosaurs, somehow had a baby, and that baby was an asteroid-bound spacecraft, it would be named OSIRIS-REx.

Yes, OSIRIS-REx is the acronym for the vessel that, NASA just announced, will launch in 2016, travel four years to an asteroid, chip off some rock samples and bring them back to Earth. The combination robot-spacecraft is the brainchild of researchers at the University of Arizona Lunar and Planetary Lab. And so is its funky name.

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Natalie Wolchover

Natalie Wolchover was a staff writer for Live Science from 2010 to 2012 and is currently a senior physics writer and editor for Quanta Magazine. She holds a bachelor's degree in physics from Tufts University and has studied physics at the University of California, Berkeley. Along with the staff of Quanta, Wolchover won the 2022 Pulitzer Prize for explanatory writing for her work on the building of the James Webb Space Telescope. Her work has also appeared in the The Best American Science and Nature Writing and The Best Writing on Mathematics, Nature, The New Yorker and Popular Science. She was the 2016 winner of the  Evert Clark/Seth Payne Award, an annual prize for young science journalists, as well as the winner of the 2017 Science Communication Award for the American Institute of Physics.