Quasar in a Primeval Galaxy (or Protogalaxy)

Animation of a quasar located in a primeval galaxy (or protogalaxy) a few hundred million years after the Big Bang. Astronomers used the NASA/ESA Hubble Space Telescope to discover substantial amount of iron in three such quasars. This is the first time that anyone has found elements believed to have been created exclusively by the first generation of stars. Information about the very first generation of stars has been one of the Universe's best-kept secrets. When the first stars ended their lives as supernovae, the explosions expelled gas into space. These 'ashes' contained heavier elements such as oxygen, carbon, silicon, and iron created in the nuclear furnaces within the centres of stars. This new discovery allows astronomers to construct a revised timescale for the history of the Universe. About 13.7 thousand million years ago, the Universe is created in the Big Bang. In this cataclysmic hot explosion, hydrogen and helium are almost the only substances present. As the gases cool, the Universe becomes transparent and the gases start to gather. After 200 million years, the first generation of stars form. About 500 to 800 million years later, these first stars explode as supernovae, dispersing elements like iron and other elements into the surroundings. The new observations suggest that the first stars formed before the supermassive black holes that power the quasar engines in the centres of galaxies. The light from the quasars has travelled for 12.8 thousand million years before reaching Hubble and had left the quasars only 900 million years after the Big Bang.

Credit: European Space Agency and Wolfram Freudling (Space Telescope-European Coordinating Facility/European Southern Observatory, Germany)

Category:

Science & Technology

Tags:

• Quasar
• Primeval
• Galaxy
• Protogalaxy

[BradanKAnderson]

This video isn't religeous by nature... This is just reality. If you are going to pretend the universe doesn't exist to propogate you're stone-age beleifs, you need to open your eyes.

[dikydua]

get the fuck outta here

[MrMuhammadSumair]

Read the article on

wired.ylli.me/2012/01/power-of­-supernova.html

[kickboxer300]

get to the choppa!!! :)))

[mahyarmohaghegh]

END FINALLY ZEY EXPLOWD hahahha yess thats how i like my physics

[Pianoman8]

I agree but Priests of those days were no more than the scientists of today. They had 'proof' like we do. I'm no god worshiper believe me however a healthy doubt in today's supposed theories are also required. I believe the big bang theory will change markedly to the point where it will be dropped entirely (i.e. dark matter is now making the theory seem more clunky by the day.)

[niceguya1ways]

Big bang is a religious idea? R u outta ur mind? Up until a few centuries ago Priests used to preach about how everything circled around the Earth and wanted to keep it that way so it would uphold up their "Godly" ideologies.

[Pianoman8]

The big bang is a religious idea, even if the language is maths and not Latin

[vonriktoven]

i agree this is NOT good science there are many mistakes. first being ESA has NOTHING TO DO WITH Hubble. he also got the age of the universe wrong. nothing he said about quasars is right at all. this is just crap on youtube not a pier reviewed forum.

[divinethug1]

Get Down!

[supergiuovane]

Because elements heavier than hydrogen and helium are only produced by nuclear reactions and/or by supernova explosions. A quasar is powered by a completely different emission mechanism