Twinkle twinkle little ... Earth? Yep, our planet does indeed sparkle from space — just like stars. But why? This question has perplexed many scientists for years, including famed astronomer Carl Sagan. That is, until now. In a May 2017 study, a team of NASA researchers explained the source of Earth's shimmer: horizontal ice.
All That Glimmers Is Ice
Related Video: 10 Things You Didn't Know About Earth
Planets That Sparkle
Written by Anna Todd June 12, 2017
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