Two NASA astronauts steppes outside the International Space Station on Thursday to take part in U.S. Spacewalk 93, NASA's fifth-ever all-female spacewalk.

Two NASA astronauts have ventured outside the International Space Station to conduct a rare all-female spacewalk. When astronauts Anne McClain and Nichole Ayers emerged around 9 a.m. Thursday ...

NASA astronaut Suni Williams works outside the International Space Station. Credit: NASA | edited by Space.com's Steve ...

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An astronaut has captured jaw-dropping lightning from space. NASA's Nichole Ayers has wowed space fans with her snaps of the ...

NASA astronauts Anne McClain and Nichole Ayers emerged around 9 a.m. Thursday, May 1 for the fifth-ever all-female spacewalk.