The Moon As A Mirror

Scientists are planning to use NASA's Hubble Space Telescope to observe next month's historic transit of Venus across the sun's face -- but there's a twist: Researchers can't point Hubble anywhere near the sun, because our star's bright light could damage the telescope's super-sensitive instruments. So Hubble will watch the June 5-6 Venus transit by using the moon as a mirror. The goal is to see if Hubble can determine ...

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