Did You Know?
Black holes create the perfect pitch of B-flat.
NASA's Chandra X-ray Observatory detected sound waves emanating from a supermassive black hole in the Perseus galaxy cluster. The note is B-flat, 57 octaves below middle C, far too low for human ears to hear.
Did You Know?
The most distant human-made object is now in interstellar space.
Voyager 1, launched in 1977, became the first human-made object to enter interstellar space in 2012. It's now...
Did You Know?
Some galaxies have no dark matter.
NGC 1052-DF2 is the first galaxy discovered that appears to contain no dark matter, which challenges our understanding...
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There’s a planet with a surface temperature of 4,300°C, hotter than some stars.
KELT-9b is the hottest known exoplanet, with a dayside temperature hotter than many stars. It's so hot that...