These Halloween Costumes Are Out of This World!

Space.com staff celebrated Halloween at the office. Staff writer Sarah Lewin dressed up as Tabby's Star, the possible "alien megastructure." Staff writer/producer Hanneke Weitering dressed up as Saturn, the hula hooping champion of the solar system. (Image credit: Steve Spaleta)

NASA has asked the Internet to submit photos of space-themed Halloween costumes on social media using the hashtag #NASACostume. From astronauts to rockets, planets and satellites, here are some of the most amazing cosmic costumes we've seen.

And here are our favorite #NASACostume photos from Halloweens past:

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Hanneke Weitering is an editor at Space.com with 10 years of experience in science journalism. She has previously written for Scholastic Classroom Magazines, MedPage Today and The Joint Institute for Computational Sciences at Oak Ridge National Laboratory. After studying physics at the University of Tennessee in her hometown of Knoxville, she earned her graduate degree in Science, Health and Environmental Reporting (SHERP) from New York University. Hanneke joined the Space.com team in 2016 as a staff writer and producer, covering topics including spaceflight and astronomy. She currently lives in Seattle, home of the Space Needle, with her cat and two snakes. In her spare time, Hanneke enjoys exploring the Rocky Mountains, basking in nature and looking for dark skies to gaze at the cosmos.