standard candles
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Webb Spots Second Ancient Supernova in Gravitationally Lensed Galaxy
Last month, astronomers focused the Webb Space Telescope on the galaxy MRG-M0138 and found something surprising: a supernova in the ancient universe, magnified for your viewing pleasure by the gravitational lensed galaxy. When stars die, they release a huge amount of energy which astronomers can observe as a bright light source called a supernova. The…
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Amateur Astronomer Spots a Rare Visible Nova
A new nova, appearing in the northern constellation of Cassiopeia, can be seen with binoculars and small telescopes, but this transient object won’t stick around for long. Here’s how you can spot Nova V1405 Cas before it’s too late.