Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...
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Perihelion: What is it and when does it occur?
Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around ...
Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. NASA has released the first look at its Advanced Composite Solar ...
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