Astronomers Find Life on… Earth?!
In this photo, it looks like the Moon wants to be a crescent and a Full Moon at the same time! It’s because some sunlight bounced off the Earth and dimly lit the side of the Moon that is facing away from the Sun. This is called earthshine. Recently, astronomers used earthshine to help in the search for aliens.
Credit:
X-ray: NASA's Chandra X-ray Observatory/ESA's XMM-Newton; Optical: Cerro Tololo Inter-American Observatory
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