In this video, we explore the amazing discovery of the second supernova in MRG-M0138, a distant galaxy that is warped and magnified by a massive cluster of galaxies. This supernova is the same as the one that Hubble saw in 2016, but with a time delay of seven years. This is the first time that two supernovae were found in the same lensed galaxy, and they have a fascinating connection. They are both named Requiem, and they are both crucial for measuring the expansion rate of the universe, one of the biggest mysteries in cosmology. How did Webb detect the second supernova? How does it compare with the first one? And what does it mean for our understanding of the universe? Watch the video to find out, and don’t forget to like, comment, and subscribe!
Chapters:
00:00 Introduction
00:55 The discovery of the second supernova
02:58 The comparison with the Hubble observation
06:00 The implications for measuring the Hubble constant
10:15 Outro
10:42 Enjoy
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