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Starting with a somewhat depressive item...luckily there are still many places you can go and see an unaltered night sky. This world map shows the effect of artificial night sky brightness on the visual appearance of the night sky. The brightness was modeled using high resolution satellite data...

Roll cloud over Las Olas Beach, Maldonado, Uruguay Asperatus clouds, Hanmer Springs in Canterbury, New Zealand. Monte Conero, Italy, Andromeda is the faint smudge top just left of center. Milky Way over Quiver Tree forest; the glow is from the town of Keetmanshoop, Namibia. Milky Way...

Moon and Milky Way over the Pinnacles, limestone rock spires in Nambung National Park in Western Australia. Image taken from Mount Pico in the Azores, Portugal with ground lights originating from the island of Faial, airglow, arc of the Milky Way, and Andromeda top just left of center...

Love all 3 of those pics...the top made me laugh....someone like the A Team....I pity the fool!

Bryce Canyon, Utah. The unusual pattern was created by atmospheric gravity waves, ripples of alternating air pressure that can grow with height as the air thins, in this case about 90 kilometers up. The colors are not from aurora, they are from a phenomena known as airglow and caused by...

https://www.iflscience.com/a-telescope-is-taking-12-years-to-build-but-could-find-extraterrestrial-life-in-hours-78527

Reynisdrangar, Iceland

Welcome home

Welcome home

On March 14 the Moon was Full. In an appropriate celebration of Pi day, that put the Moon 3.14 radians (180 degrees) in ecliptic longitude from the Sun in planet Earth's sky. As a bonus for fans of Pi and the night sky, on that date the Moon also passed directly through Earth's umbral shadow in...

What phase of the Moon is 3.14 radians from the Sun? The Full Moon, of course. Even though the Moon might look full for several days, the Moon is truly at its full phase when it is Pi radians (aka 180 degrees) from the Sun in ecliptic longitude. That's opposite the Sun in planet Earth's sky...

And that was pretty much designed on drafting boards and slide rules...amazing. Hate the fact that he was a Nazi.

Could you two PLEASE start another thread for politics...I do not come to this thread to see political bullshit; I come here to see cool pics like below...if I wanted to see the bullshit political images all I have to do is turn on the TV, so please, for the rest of our sake, and sanity, start a...

I can't believe the deal I scored at Green Dragon on Saturday...$15 gram concentrate, 70% THC very nice wax in both Hybrid and Indica. When I saw $15 I thought for sure they would be sold out since we are a smaller market where I live...nope, got 10 :) @Cmdr. Redeye I loved the first rendition...

Awesome nickname, phrase, and avatar image @Cmdr. Redeye

The red color of the Moon is caused by the deflection of blue light by Earth's atmosphere. The distortion is an optical effect arising from layers in the Earth's atmosphere that refract light differently due to sudden differences in temperature or pressure. Another reason the Moon looks so...

See what @Vitolo and I are getting at? Look how tiny the Earth is in this image from the Moon from the Blue Ghost lander and its shadow.

Blue Ghost snapping an image of its shadow and the Earth in the background.

And our Sun compared to some others...we are not even a pixel in the grand scale of the universe. The biggest star in the universe is UY Scuti with a diameter of approximately 2.4 billion kilometers. And of course you could go further with things like nebula, galaxy, galaxy cluster, galaxy super...