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This almost makes me dizzy: https://en.wikipedia.org/wiki/Hubble_Ultra-Deep_Field#/media... (it's a picture of the night sky showing what exactly Hubble was imaging with the Moon for scale)

I never really understood how XDF is only that tiny patch of the sky and yet it has a godzillion of galaxies inside it!




The full resolution versions of the public domain images from the article are on that page: https://en.wikipedia.org/wiki/Hubble_Ultra-Deep_Field

Unlike the lower resolution versions National Graphic scoldingly claims are under copyright when you right click to try and view the full image.


TIL: Moon covers 0.5°.


The Sun- also 0.5°


Wow, they're both the same size! What a cool coincidence! Just think what would happen if the moon passed exactly in front of the sun! Has it ever happened? Has anybody looked up at the sky when this happened? I wonder what it looks like.


Only for the lucky 50million-ish year window we are currently in

https://astronomy.com/magazine/ask-astro/2000/10/why-is-the-...


Yeah full solar eclipses are a lot of fun. I had an experience in Seattle a couple of years ago.

They perfectly align and all you see is a thin ring from the sun flares.

In that perfect eclipse, you can look at the sun with the naked eye and it’s beautiful and humbling. Like the day suddenly turns into a night for a few minutes.

The TV series “Heroes” was all about this eclipse. It’s a fun show if you enjoy this kind of things.


I witnessed the 2017 total solar eclipse in person. Very eery feeling. It's worth noting that you should still not look at the sun during a total eclipse as the corona is still bright enough to do damage, and your pupils are dilated.


> look at the sun with the naked eye

Not recommended.




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