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Re: Look up - there are beautiful sights in the sky! [Re: Mona - Astronomy] #920396
05/16/17 06:58 PM
05/16/17 06:58 PM
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This image of Earth wasn't acquired by looking up. Astronaut Scott Kelly was looking down when he took the picture.

Quote:
What bizarre alien planet is this? It's planet Earth of course, seen from the International Space Station through the shimmering glow of aurorae. About 400 kilometers (250 miles) above Earth, the orbiting station is itself within the upper realm of the auroral displays. Aurorae have the signature colors of excited molecules and atoms at the low densities found at extreme altitudes. Emission from atomic oxygen dominates this view. The eerie glow is green at lower altitudes, but a rarer reddish band extends above the space station's horizon. Also visible from the planet's surface, this auroral display began during a geomagnetic storm. The storm was triggered after a coronal mass ejection impacted Earth's magnetosphere in June of 2015.


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Re: Look up - there are beautiful sights in the sky! [Re: Mona - Astronomy] #920397
05/16/17 07:47 PM
05/16/17 07:47 PM
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Grand-Métis, Quebec, Canada
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Wow! Amazing! Also scary since falling in the deep of space is like a phobia for me but I still would go in space if I could!

Re: Look up - there are beautiful sights in the sky! [Re: Mona - Astronomy] #921486
07/01/17 07:00 AM
07/01/17 07:00 AM
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NASA launched a sounding rocket from its Wallops Flight Facility in Virginia at 4:25 a.m. on June 29th. It produced a colorful display of "space clouds" during its 8-minute flight. More than 100 miles above Earth's surface the rocket deployed ten canisters about the size of soft drink cans. The canisters dispensed barium, strontium and cupric-oxide, which interacted to form blue-green and red vapors. They were visible from New York to North Carolina.

Christopher Becke captured this image from Williamsburg, Virginia. There is blurriness in the clouds and lines that look like rain, but are star trails. This is an effect of a long camera exposure.

NASA said that the chemicals "pose[d] no hazard to residents along the mid-Atlantic coast." Such clouds allow scientists on the ground to visually track particle motions at the edge of space, giving them new insights into the dynamics of Earth's ionosphere.

Credit: report from SpaceWeather.com


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Re: Look up - there are beautiful sights in the sky! [Re: Mona - Astronomy] #921487
07/01/17 08:25 AM
07/01/17 08:25 AM
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UFOs for sure.... if seen from Earth. smile

Originally Posted By Mona - Astronomy
It produced a colorful display of "space clouds"
Credit: report from SpaceWeather.com

Re: Look up - there are beautiful sights in the sky! [Re: Mona - Astronomy] #921623
07/08/17 05:55 AM
07/08/17 05:55 AM
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Noctilucent clouds over Denmark earlier this week. The photo was taken by Ruslan Merzlyakov who said, "The whole sky was filled with the shining silver, stretching from west to east and even right above my head!"

SpaceWeather.com explains
Quote:
Noctilucent clouds form when summertime wisps of water vapor rise to the top of the atmosphere, coating specks of meteor smoke with fragile crystals of ice. This process requires temperatures as low as 145 K (-128 C). In early June, an unexpected heat wave in the mesosphere temporarily wiped out noctilucent clouds. Their return proves that the heat wave is over.

Noctilucent clouds are usually confined to near-Arctic latitudes. In recent years, however, they have been sighted as far south as Utah and Kansas in the United States.


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Re: Look up - there are beautiful sights in the sky! [Re: Mona - Astronomy] #922053
07/28/17 09:22 AM
07/28/17 09:22 AM
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You're not very likely to look up and get this view. This amazing photo is of a rare phenomenon called a Ggantic Jet and the image was captured by the Gemini cloudcam on Mauna Kea in Hawaii on July 24.

There were at least three of these jets shooting up from atop thunderclouds, the tallest stretched out into the ionosphere around 80 km overhead.

Credits: Gemini cloucam, Frankie Lucena, Steve Cullen.


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Re: Look up - there are beautiful sights in the sky! [Re: Mona - Astronomy] #922328
08/08/17 04:39 PM
08/08/17 04:39 PM
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A rare pink rainbow over the west of England. Apparently, it's caused by having an ordinary rainbow happening with a pink sunset. Fantastic!

Photo Credit: Sarah Aggett, BBC


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Re: Look up - there are beautiful sights in the sky! [Re: Mona - Astronomy] #922591
08/22/17 03:05 AM
08/22/17 03:05 AM
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I have been to Monument Valley. And on very rare occasions have seen the Milky Way. But not together. Tom Masterson has captured a dazzling picture of the Milky Way over Monument Valley.
Quote:
The rock peaks are called buttes - they're the hard rock left when the softer rock has been eroded. The closest butte on the left and the butte to its right are known as the Mittens, while Merrick Butte can be seen farther to the right. Green airglow fans up from the horizon. High overhead stretches a band of diffuse light that is the central disk of our spiral Milky Way Galaxy. The band of the Milky Way can be spotted by almost anyone on almost any clear night when far enough from a city and surrounding bright lights, but a sensitive digital camera is needed to capture these colors in a dark night sky.


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Re: Look up - there are beautiful sights in the sky! [Re: Mona - Astronomy] #922593
08/22/17 08:10 AM
08/22/17 08:10 AM
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what an awesome shot. Makes you realize how beautiful our planet is.

Re: Look up - there are beautiful sights in the sky! [Re: Mona - Astronomy] #923223
09/20/17 04:27 AM
09/20/17 04:27 AM
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You'd have to be on Easter Island off the coast of Chile to see this view of Orion and Sirius above an ancient Moai statue. Just wow!

And here is an annotated version of Yuri Beletsky's photo. There are over 800 giant stone statues on the island. They're about 700 years old and no one knows their origin or purpose.

Image Credit & Copyright: Yuri Beletsky (Carnegie Las Campanas Observatory, TWAN)


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