Einstein’s theory and ‘bent light’ reveal a way to weigh stars for first time. The scientists pointed the Hubble Space Telescope at a nearby binary star phenomenon called gravitational microlensing. That’s when gravity from a closer star slightly bends the light coming from a more distant star.

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Einstein’s theory and ‘bent light’ reveal a way to weigh stars for first time. The scientists pointed the Hubble Space Telescope at a nearby binary star phenomenon called gravitational microlensing. That’s when gravity from a closer star slightly bends the light coming from a more distant star.