Some days really are longer than others. And now scientists know by precisely how much. Using a laser gyroscope, scientists have measured variations in Earth’s rotation rate smaller than a millionth ...
Dec. 7 (UPI) --NASA will put the Hubble Space Telescope back to work Friday, after a weeklong delay in its mission to investigate one of the spacecraft's steering devices, the agency announced ...
Trouble with one of the Hubble Space Telescope's three remaining gyroscopes, critical for aiming and locking onto targets, has prompted mission managers to switch to a backup control mode that will ...
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