Last July, NASA's New Horizons spacecraft captured some stunning photos of Pluto.
One of the most surprising discoveries for NASA scientists was Pluto’s glaciers. Slushy slabs of mostly nitrogen ice scrape craters off the landscape — creating the bright heart-shaped region. NASA called the photos Pluto's "love note" to Earth.
The Arizona Science Desk has created Valentine's Day love notes inspired by this iconic image. Download and share these foldable cards with the space enthusiasts in your life!
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