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American civil rights leader and U.S. Representative John Lewis (D-GA) passed away on July 17, 2020, following a seven-month battle with pancreatic cancer. The 80-year-old ded...약 4년 agoflashyfrog24 added a news bookmark.
Over the past two decades, powerful instruments, like the now-retired Kepler space telescope, have allowed astronomers to identify thousands of exoplanets. While the unique new ...약 4년 ago