The James Webb firsts keep coming, with the new space telescope having recently spotted its first supernova.
The James Webb firsts keep coming, with the new space telescope having recently spotted what could be the most distant galaxy ever observed. Now, it may have spotted its first supernova.
A supernova occurs when a massive star runs out of fuel and comes to the end of its life. As the star collapses, it throws off much of its material in an enormous explosion which gives out large amounts of light. This light is so bright it can be spotted from great distances away. Webb spotted one such bright flash in the galaxy SDSS.J141930.11+5251593.
This finding is rather surprising, even with Webb’s extreme sensitivity. Because supernovae are transient events, meaning they don’t last for long, you have to get lucky to observe one when it happens. Although technically, the supernova happened billions of years ago, we are only just seeing it now because it takes time for the light to travel to us from the distant galaxy.
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