However these planets will be too small to allowan image to be made of their surface. "In the future, astronomers hope to find planets likethe Earth around other stars. The discovery, detailed in this week's issue of the journal Astrobiology,could help scientists learn more about distantplanets around other suns, she said. "When we observe earthshine from the moon in the earlyevening, we see the bright reflection from the Indian Ocean, then as the Earthrotates the continent of Africa blocks this reflection, and the moon becomesdarker," Langford said. In the evening, when the moon was a waxing crescent, thereflected earthshine originated from the Indian Ocean and the coast of Africa.In the morning, when the moon was a waning crescent, the reflected light cameonly from the Pacific Ocean. She observed themoon for about three days each month while it was rising and setting. ![]() Sally Langford, a physics graduate student at the Universityof Melbourne, used the observatory at Mount Macedon in Victoria, Australia, tomeasure changes in reflected earthshine as our planet rotates.
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