NASA's Chandra X-ray Observatory recently marked its 25th anniversary by releasing an image of the massive galaxy NGC 6872. This spiral galaxy, also known as the Condor Galaxy, resides in the Pavo or Peacock constellation. The observatory, which was launched...
Which is the farthest object we know of in the solar system, a planetary system consisting of Earth? Many would answer that Pluto, once a planet and now a dwarf planet, is wrong. There are objects in the Solar System...
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