ทวีตที่ปักหมุด

The same CXO press release regarding my paper on the ultra-compact X-ray Binary 4U 1916-053, this time with a cool video!
Chandra Observatory@chandraxray
#News: What do Albert Einstein, the Global Positioning System (GPS), and a pair of stars 200,000 trillion miles from Earth have in common? The answer: an effect called "gravitational redshift," where light is shifted to redder colors because of gravity: s.si.edu/lmxb20
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