The newly discovered star called N Cas 2021 from the constellation Cassiopeia has become 50 times brighter in the past two months. It was found by Japanese astronomer Yuji Nakamura back in March.
By the beginning of May, the brightness of N Cas 2021 increased to the extent that it became visible even without the need to use a telescope. The peculiarity of this phenomenon lies in the fact that stars rarely become this much brighter over several months. This celestial object is now recognized as one of the brightest stars in the Northern Hemisphere.
It should be noted that scientists discover less than 20 stars per year, and most of them become darker after being brighter for a number of days.
According to the analysis by the National Astronomical Observatory of Japan, an explosion has occurred on the surface of the discovered N Cas 2021 star.
Also, on May 14, scientists discovered isotopes of iron and plutonium in samples of the oceanic crust, which are not usually found on Earth. The researchers say this indicates that the fluxes of matter that was ejected during supernova explosions or mergers of neutron stars reach the surface of the Earth from time to time.