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Brian Cox on The Life Cycle of Stars

by MOEPP



Professor Brian Cox explains in great detail the life cycle of stars. Stellar evolution is the process by which a star changes over the course of time. Brian Cox shares his knowledge about White Dwarfs, Red Giants, Supernovae, Black Holes and more.

Depending on the mass of the star, its lifetime can range from a few million years for the most massive, to TRILLIONS of years for the least massive, which is considerably longer than the age of the universe.

Brian Cox also explains how the merging of black holes and neutron stars gives us a much better understanding of our universe.

Stars with around ten or more times the mass of the Sun can explode in a supernova as their inert iron cores collapse into an extremely dense neutron star or black hole.

There is also a very energetic supernova thought to result from an extreme core-collapse scenario.
In this case, a massive star (about 30 solar masses) collapses to form a rotating black hole emitting twin energetic jets and surrounded by an accretion disk.
It is a type of stellar explosion that ejects material with an unusually high kinetic energy. This explosion is known as a Hypernova.

Hypernovae are one of the mechanisms for producing long gamma ray bursts, which range from 2 seconds to over a minute in duration.

There is also another strange cosmic beast that is a highly magnetized rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles. It is known as a Pulsar.
And again Brian Cox explains the details behind Pulsars.

#stars #space #science

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14 comments

Bapon Kar 2023.02.04 - 8:02 pm

Why so many star is in there?
Is star a live thing?

Tab Let 2023.02.04 - 8:26 pm

death gives life

Happivaras 2023.02.04 - 8:28 pm

Star
Stuff

Celeste Nova 2023.02.04 - 8:37 pm

Great video, thanks for upload 🌠

Gul Khan 2023.02.04 - 8:47 pm

Love you sir

T N 2023.02.04 - 8:54 pm

We are star stuff which started 13.9billion yrs massive first generation stars only hydrogen. This is the perfect design of the universe. Look at earth's early history 2.5billionyrs of not much for life o2saturation etc

RoRo 2023.02.04 - 9:13 pm

Existential crisis time

G-STAR 2023.02.04 - 9:30 pm

More stars than grains of sand. We are tiny

Michael Smythe 2023.02.04 - 10:38 pm

Brian Cox is a global treasure.

Sue Condon 2023.02.04 - 11:21 pm

We are 'temporary structures'. Yes it is unbelievable that we exist! I love this, thank you for this excellent upload ❤️

Laurence L. 2023.02.04 - 11:35 pm

Brian Cox, I wish I had you as a teacher in high school.

Mario Castro 2023.02.04 - 11:36 pm

Wish he would do more talks! This is amazing stuff!

Chantal X 2023.02.04 - 11:54 pm

You can hear him smiling. ☺

fje1948 2023.02.04 - 11:59 pm

Thank you…..

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