Betelgeuse, Dying Star

Betelgeuse, Dying Star
Betelgeuse, Dying Star

Betelgeuse, Dying Star

More Posts from Bloodyraven1001 and Others

3 months ago

kinda crazy how few dany twow theories seem to take into account that ***an archmaester of the citadel who traveled around the known world and studied in asshai who is known as “the mage” and gives way more credence to magic & the supernatural than any maester*** AND ***a red priest with a dragon’s head staff spitting green flame who makes so-far very accurate predictions in the flames and may possibly be the 2nd most “powerful” red priest in the world with a magic dragon horn near him*** are coming around dany’s orbit. like i think the whole storyline with/around dany in twow is gonna be a lot more than just the political conflicts of the free cities & iron throne claim crisis. magic/prophecies/dragonlore is gonna be just as (and probably more) important to everything imo


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3 months ago

George just told me what Littlefingers Winds of Winter arc is going to be btw. He’s going to try to fuck Stoneheart


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3 months ago

There is like one definition of bisexuality I've heard that I think is pretty much perfect: attraction to genders like your own and genders unlike your own. No need for overly complex definitions with stupid qualifiers that are simultaneously narrow and describe something that doesn't really matter in practice or doesn't work like that. No need for splitting it into 20 other microlabels. A very concise, elegant and practical definition.

2 months ago

I still get excited when my friends refer to me as their friend

"My friend said" "this is my friend" "they're my friend"

Im freaking out inside every time

3 months ago

after my nigh twenty years of chewing on this series, i think the key to making any asoiaf prediction is to remember that george rr martin doesn’t consider anything to be set in stone until it is published. that man will change his mind on a dime. he will change course, he will add povs. he will drop time jumps. he will retcon. i don’t care what groundwork he’s laid. i don’t care what he’s sworn he will or won’t do. there are no guard rails with him. none

i promise you his ending is not the same now as it was in 2019 as it was in 2015 as it was in 2013 as it was in 2011 as it was in 2006 as it was in 2003 as it was in 1999 as it was in 1997 as it was in 1995 as it was in 1993

it’s in flux. it’s schrodinger’s endgame. even he won’t know what’s in that damn box until he opens it. as of this moment anything is possible


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3 months ago
Unexpected Complex Chemistry In Primordial Galaxy
Unexpected Complex Chemistry In Primordial Galaxy

Unexpected complex chemistry in primordial galaxy

University of Arizona astronomers have learned more about a surprisingly mature galaxy that existed when the universe was just less than 300 million years old – just 2% of its current age.

Observed by NASA's James Webb Space Telescope, the galaxy – designated JADES-GS-z14-0 – is unexpectedly bright and chemically complex for an object from this primordial era, the researchers said. This provides a rare glimpse into the universe's earliest chapter.

The findings, published in the journal Nature Astronomy, build upon the researchers' previous discovery, reported in 2024, of JADES-GS-z14-0 as the most distant galaxy ever observed. While the initial discovery established the galaxy's record-breaking distance and unexpected brightness, this new research delves deeper into its chemical composition and evolutionary state.

The work was done as part of the JWST Advanced Deep Extragalactic Survey, or JADES, a major James Webb Space Telescope program designed to study distant galaxies.

This wasn't simply stumbling upon something unexpected, said Kevin Hainline, co-author of the new study and an associate research professor at the U of A Steward Observatory. The survey was deliberately designed to find distant galaxies, but this one broke the team's records in ways they didn't anticipate – it was intrinsically bright and had a complex chemical composition that was totally unexpected so early in the universe's history.

"It's not just a tiny little nugget. It's bright and fairly extended for the age of the universe when we observed it," Hainline said.

"The fact that we found this galaxy in a tiny region of the sky means that there should be more of these out there," said lead study author Jakob Helton, a graduate researcher at Steward Observatory. "If we looked at the whole sky, which we can't do with JWST, we would eventually find more of these extreme objects."

The research team used multiple instruments on board JWST, including the Near Infrared Camera, or NIRCam, whose construction was led by U of A Regents Professor of Astronomy Marcia Rieke. Another instrument on the telescope – the Mid-Infrared Instrument, or MIRI, revealed something extraordinary: significant amounts of oxygen.

In astronomy, anything heavier than helium is considered a "metal," Helton said. Such metals require generations of stars to produce. The early universe contained only hydrogen, helium and trace amounts of lithium. But the discovery of substantial oxygen in the JADES-GS-z14-0 galaxy suggests the galaxy had been forming stars for potentially 100 million years before it was observed.

To make oxygen, the galaxy must have started out very early on, because it would have had to form a generation of stars, said George Rieke, Regents Professor of Astronomy and the study's senior author. Those stars must have evolved and exploded as supernovae to release oxygen into interstellar space, from which new stars would form and evolve.

"It's a very complicated cycle to get as much oxygen as this galaxy has. So, it is genuinely mind boggling," Rieke said.

The finding suggests that star formation began even earlier than scientists previously thought, which pushes back the timeline for when the first galaxies could have formed after the Big Bang.

The observation required approximately nine days of telescope time, including 167 hours of NIRCam imaging and 43 hours of MIRI imaging, focused on an incredibly small portion of the sky.

The U of A astronomers were lucky that this galaxy happened to sit in the perfect spot for them to observe with MIRI. If they had pointed the telescope just a fraction of a degree in any direction, they would have missed getting this crucial mid-infrared data, Helton said.

"Imagine a grain of sand at the end of your arm. You see how large it is on the sky – that's how large we looked at," Helton said.

The existence of such a developed galaxy so early in cosmic history serves as a powerful test case for theoretical models of galaxy formation.

"Our involvement here is a product of the U of A leading in infrared astronomy since the mid-'60s, when it first started. We had the first major infrared astronomy group over in the Lunar and Planetary lab, with Gerard Kuiper, Frank Low and Harold Johnson," Rieke said.

As humans gain the ability to directly observe and understand galaxies that existed during the universe's infancy, it can provide crucial insights into how the universe evolved from simple elements to the complex chemistry necessary for life as we know it.

"We're in an incredible time in astronomy history," Hainline said. "We're able to understand galaxies that are well beyond anything humans have ever found and see them in many different ways and really understand them. That's really magic."

TOP IMAGE: This infrared image from NASA’s James Webb Space Telescope was taken by the onboard Near-Infrared Camera for the JWST Advanced Deep Extragalactic Survey, or JADES, program. The NIRCam data was used to determine which galaxies to study further with spectroscopic observations. One such galaxy, JADES-GS-z14-0 (shown in the pullout), was determined to be at a redshift of 14.3, making it the current record-holder for most distant known galaxy. This corresponds to a time less than 300 million years after the big bang.  NASA, ESA, CSA, STScI, Brant Robertson (UC Santa Cruz), Ben Johnson (CfA), Sandro Tacchella (Cambridge), Marcia Rieke (University of Arizona), Daniel Eisenstein (CfA), Phill Cargile (CfA)

LOWER IMAGE: Timeline of the universe: Although we are not sure exactly when the first stars began to shine, we know that they must have formed sometime after the era of Recombination, when hydrogen and helium atoms formed (380,000 years after the big bang), and before the oldest-known galaxies existed (400 million years after the big bang). The ultraviolet light emitted by the first stars broke down the neutral hydrogen gas filling the universe into hydrogen ions and free electrons, initiating the era of Reionization and the end of the Dark Ages of the universe.  NASA, ESA, CSA, STScI


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4 months ago

Balerion with tits!!

Humanoid Syrax

Humanoid Syrax


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bloodyraven1001 - A Raven under a Weirwood
A Raven under a Weirwood

Your favourite sicko's favourite sicko;; Mostly ASOIAF, TMA/TMAGP and X-Men reblogs Occasional Astronomy from Professional Astronomer

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