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Watch 'planetary parade' online for free on Jan. 25
Starting at 12:30 p.m. ET (1730 GMT) on Saturday (Jan. 25), astrophysicist Gianluca Masi of the Virtual Telescope Project ...
The sound of a meteorite striking Earth has been captured for the first time
Throughout history, only a select few people who were in the right place at the right time could say they’ve heard the sound ...