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A shock flash breaking out of a dusty red supergiant

Shock-breakout emission is light that arises when a shockwave, generated by the core-collapse explosion of a massive star, passes through its outer envelope. Hitherto, the earliest detection of such a signal was at several hours after the explosion1, although a few others had been reported2–7. The temporal evolution of early light curves should provide insights into the shock propagation, including explosion asymmetry and environment in the vicinity, but this has been hampered by the lack of multiwavelength observations. Here we report the instant multiband observations of a type II supernova (SN 2023ixf) in the galaxy M101 (at a distance of 6.85 ± 0.15 Mpc; ref. 8), beginning at about 1.4 h after the explosion. The exploding star was a red supergiant with a radius of about 440 solar radii. The light curves evolved rapidly, on timescales of 1−2 h, and appeared unusually fainter and redder than predicted by the models9–11 within

Researchers investigate the properties of open cluster NGC 6383

PETM Caused by Passing Star?

Could a passing rogue star have caused the PETM? Could other astrophysical phenomena been primary drivers of paleoclimate change?

Buzz Aldrin Interview: On the Moon We Were Ordered by Aliens To Move Away!

Here are the statements by the former astronauts: Professor: What really happened out of Apollo 11? Buzz Aldrin: An amazing thing, even though we have always known of this possibility..

Study investigates two young open clusters