By Nasahubble

By Nasahubble
By Nasahubble
By Nasahubble
By Nasahubble

by nasahubble

More Posts from Astrophysics-georg and Others

2 years ago

bro i can’t come to the phone right now, neptune has a moon that shines like a star.

Bro I Can’t Come To The Phone Right Now, Neptune Has A Moon That Shines Like A Star.
Bro I Can’t Come To The Phone Right Now, Neptune Has A Moon That Shines Like A Star.
2 years ago
"We Love Our Black Hole"
"We Love Our Black Hole"

"We love our black hole"

1 year ago

With NASA announcing their streaming service NASA+ and also announcing it’s going to be free and also ad free, I’d just like to appreciate the lengths they go to make scientific knowledge and exploration as available as they possibly can.

2 years ago

The first JWST image is creating quite a buzz around gravitational lensing because of the sheer amount of it in the image. Gravitational lensing makes galaxies appear warped like these:

A very small section from Webb's first Deep Space. The background is black space and a few galaxies and stars are scattered across it. The focus is on a red-orange galaxy that is warped and appears to stretch down in an arc which then stretches into a mirror image of the same galaxy.
A very small section from Webb's first Deep Space. The background is black space and a few galaxies are scattered across it. The focus is on a yellow-orange galaxy that is warped. It is elongated, bulbous on both ends and squeezed in the middle. The squeezed part arcs around a large, white spot.

Because spacetime curves around a massive body, light bends when it's near enough a massive object, allowing us to see very distant galaxies behind the cluster we're looking at.

An illustration on a black background. Around halfway it is divided horizontally. The lower half is a blue grid with straight lines except for the center, where it appears like fabric being weighed down. In this spot a couple of white dots represent a galaxy cluster. To the left of that and slighty up so it sits above the horizontal line is a white swirl representing a galaxy. Towards the right of the cluster and slightly down (but not weighing down the grid) is a circle representing Earth. Several white lines are drawn from the galaxy on the far left in the direction of the Earth. They represent disoriented light rays and are slightly bent around the galaxy cluster. Two red lines are bent around the galaxy cluster and meet again on the other side hitting Earth. Where the red lines are at the same level with the galaxy cluster they are labelled "lensed galaxy images". The graphic represents light rays from a distant galaxy being bent around a galaxy cluster due to its massive gravity which bends space time and some of those light rays being bent just the right way to reach Earth, creating a distorted image of the galaxy behind the cluster.

Here is some recommended reading on it if you wanna learn more:

Gravitational Lensing
HubbleSite.org
Magnificent Hubble image of a cluster warping space and stripping gas
SYFY Official Site
Hubble image of galaxy cluster MACSJ01338-2155 shows gravitational lensing and gas stripped from galaxies.
Einstein's Telescope: The Hunt for Dark Matter and Dark Energy in the Universe
Google Books
"In Einstein’s Telescope, Evalyn Gates, an expert on all that’s dark in the universe, brings dark matter, dark energy, and even black holes
2 years ago

i feel like the crimew thing shows how much queer discourse dehumanizes people. crimew is an extremely cool & talented person who's like. literally embodying 'be gay do crime' in it's truest form, but the minute that people find out it is a bi lesbian, suddenly thats. all they can think of her as? like no consideration of how it Hacked The Fucking No Fly List, everyone can only focus on her lesbian identity crimes. because none of the people who do this shit can ever see "wrong" queer people as people. they treat identity discourse like it's the biggest issue in the world even to this absolutely absurd level. doesn't matter what they do for queer liberation doesn't matter if they are happy, if you Do Identity Wrong all you are in their eyes are a freak who's personally responsible for lesbophobia or transphobia or w/e. funny how that works

2 years ago
There Was No Women's March Even Remotely Close To Me, So I Threw My Own. End The Gender Gap In STEM!
There Was No Women's March Even Remotely Close To Me, So I Threw My Own. End The Gender Gap In STEM!
There Was No Women's March Even Remotely Close To Me, So I Threw My Own. End The Gender Gap In STEM!
There Was No Women's March Even Remotely Close To Me, So I Threw My Own. End The Gender Gap In STEM!

there was no women's march even remotely close to me, so i threw my own. end the gender gap in STEM! let young girls know they can be scientists!

2 years ago

RULES OF MY BLOG

MATTER CAN NEITHER BE DESTROYED NOR CREATED

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astrophysics-georg - i know way too much about this
i know way too much about this

just ask me things. please

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