Earth's spin slows by 1.8 ms per day over a century
British scientists compiled centuries of lunar and solar eclipse records from clay tablets and dynastic histories to show Earth’s rotation has slowed by about 1.8 milliseconds per day across a century. The shift equates to roughly seven hours over 24,000 years, affecting Universal Time and leap seconds.
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International Earth Rotation and Reference Systems Service
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SpaceX targets January for next Falcon 9 launch
SpaceX says it aims for early January to return to flight after the September Falcon 9 explosion that destroyed a Spacecom satellite. The company is finalizing investigations into the blast and plans to launch 10 Iridium satellites aboard a Falcon 9 with FAA approval pending. previous estimates had mid December.
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