Send an out-of-this-world Valentine, courtesy of NASA's Curiosity rover
NASA's Curiosity rover has made all sorts of discoveries while trolling Mars — even some heart-shaped craters. So the space agency is putting the photos to good use on Valentine's Day, letting people send "Mars Cards" to their sweethearts.
You can make your own and learn about the images, over at NASA's website, and check out two adorably punny options, below. —Sarah Eberspacher
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Sarah Eberspacher is an associate editor at TheWeek.com. She has previously worked as a sports reporter at The Livingston County Daily Press & Argus and The Arizona Republic. She graduated from Northwestern University's Medill School of Journalism.