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Jul 12 • 4 tweets • 4 min read
A quick direct linklist to the high resolution images of #JWST first images in case you have trouble finding them:

(All, as well as future ones, can be found at: webbtelescope.org/resource-galle…)

"SMACS 0723"

NIRCam Image (28Mb version): stsci-opo.org/STScI-01G7DDBW…

#space #astronomy Image
Southern Ring Nebula

NIRCam Image (21Mb version): stsci-opo.org/STScI-01G79R51…

Mid Infrared Image (1.6Mb version): stsci-opo.org/STScI-01G786E1… Image
Stephan’s Quintet

NIRCam Image (172Mb version): stsci-opo.org/STScI-01G7ND2W…

Mid-Infrared Image (5Mb version): stsci-opo.org/STScI-01G7DBWJ…

Composite (181Mb version): stsci-opo.org/STScI-01G7DB1F… Image
“Cosmic Cliffs” in the Carina Nebula

NIRCam Image (172Mb version): stsci-opo.org/STScI-01G7ETPF…

NIRCam / Mid-Infrard Composite (48Mb version): stsci-opo.org/STScI-01G7ETY4… Image

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More from @Kupeplex

George Ioannidis Profile picture
Jul 14
Cute sections from the astronomy section of Popular science monthly in 1902 talking about the Andromeda Nebula and the Spiral Nebula of Canes Venatici because it hadn't clicked yet they were different galaxies.

#Space #Astronomy ImageImageImage
This realization is in fact surprisingly recent.

The "Great Debate" of astronomy as to wither "spiral nebula" are actually local nebula or different "island universes" happened in 1920:
en.wikipedia.org/wiki/Great_Deb…
A bulletin from 1921 still discussing the scale of the universe and listing the evidence for and against the extra galactic "island universes" theory:
archive.org/details/scaleo…

Also worth noting, the conclusion: Image
Read 5 tweets
George Ioannidis Profile picture
May 30
I seem to have accidentally created an abstract image that reliably triggers #Twitter to suspend your account for awhile

To make it a bit of a fun/creepy coincidence, the image is based on a representation of Covid's RNA

cc @Twitter @TwitterEng @TwitterSupport #HackerNews
The image in question is this one: imgur.com/a/v9qFjdA

It was supposed to just be an artsy follow up to my previous tweet. Its a representaton of Covid's genome but with colourful dots.
In order to further test this I made a couple new accounts:
twitter.com/SecretGioLab001
twitter.com/SecretGioLab002

(one using the VPN I usually use and one not to see if this was the reason) and sure enough, both got suspended upon posting it.
Read 7 tweets
George Ioannidis Profile picture
May 28
A bit of a random comparison, but here's how the Earth/Moon system compares with Mars and the orbit radii of its two little Moons (Phobos & Deimos)

Moon's orbit radius: 384,400 km
Phobos's orbit radius: 9,376 km
Deimos's orbit radius: 23,463 km Image
Phobos is practically a ready made low orbit space station for it. (The size of London)

But even Deimos is actually quite close to it.

Phobos would in fact be orbiting under the altitude of the GPS satellites if it did so around Earth. And Deimos is at almost exactly their alt.
View of #Mars from Phobos simulated in the @SpaceEngineSim

Also added tiny starship.

#space Image
Read 4 tweets

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