Decades of constant X-ray emission from the Helix Nebula’s white dwarf suggest debris from a Jupiter-sized planet steadily rains upon the star.
Interesting Engineering on MSN18h
World’s brightest X-ray with beams surpassing Sun’s glow to be turned on by ChinaChina is finalizing construction on what will be the world’s brightest X-ray light source. Located about 30 miles (50 km) ...
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