Don't worry, there's no asteroid hurtling toward the planet that we know of — but that's not to say that scientists aren't looking. Every day, hunters around the world use a clever combination of space telescopes and ground-based observatories to scour the skies for icy comets and rocky asteroids, especially ones that cruise close to Earth. And every observation, every simulation, helps Earthlings get a little more prepared for that odd interloper that could turn into a threat.
How Citizen Scientists Help With the Hunt
Written by Elizabeth Howell November 22, 2019
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