This was
your sky.
Gravity Probe B Confirms the Existence of Gravitomagnetism
Einstein predicted that spinning masses should create a slight gravitational magnetism, an effect so subtle it's beyond ground-based measurement. NASA's Gravity Probe B mission launched in 2004 to test this. Using the smoothest spheres ever manufactured, the probe orbited Earth to see how these gyroscopes would be affected by the planet's rotation. The mission confirmed this tiny, predicted warping of spacetime.
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In tropical astrology, 10 MAY 2011 falls under Taurus (♉). The sign's window runs from 04-20 through 05-20. Taurus holds the Pleiades star cluster and Aldebaran, the red giant that marks the eye of the Bull. The Sun was crossing this region of the sky on 10 MAY 2011.