Stardust
Look: 7 strange facts unlocking secrets of nebulae
These space clouds look like art — but they’re more than their beauty.
For more than 30 years, the Hubble Space Telescope has been our eye on the universe’s stunning nebulae.
Simply put, a nebula is a giant cloud of dust and gas in space.
Sometimes they appear when a star dies, and other times they are nurseries for new stars.
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