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Over half a century after Apollo 17, humans are heading back into deep space — this time with the intention of staying.

Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.

The Space Launch System - first-ever launch was captured by several cameras at Kennedy Space Center Launch Complex 39B and on the rocket. Credit: NASA | mash mix by Space.com's Steve Spaleta Music by ...

If you've been following exoplanet research over the last couple of years, you've definitely heard of K2-18b. Located 124 ...