What's the earliest the moon could have formed?

Astronomers are pretty sure they know where the moon came from. In the early solar system, a Mars-sized object dubbed Theia smashed into Earth. This cataclysmic collision knocked a huge mass of material into orbit, which ...

NASA to launch three sounding rockets during solar eclipse

Three Black Brant IX sounding rockets for the Atmospheric Perturbations around Eclipse Path (APEP) mission are scheduled to launch from NASA's Wallops Flight Facility launch range in Virginia. The launch window opens April ...

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