Earth, as seen from 900 million miles away (with new photos)

Mr Uncle Leroy

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Need a little perspective in your life? Take a look at these images of Earth as seen from almost 900 million miles away.

In these new images released by NASA, our planet is dwarfed by Saturn's breathtaking rings, and shows up as just a pale blue dot -- a tiny asterisk beneath Saturn's striking beauty.

The dot is so small, it would seem insignificant if you didn't know you were looking at our own watery home.

The first few images in the gallery above were taken by NASA's Cassini spacecraft on Friday July 19. Cassini is in orbit around Saturn, and at the time of the long-distance photo shoot, it was about 898.5 million miles from Earth.

Earth rarely shows up in Cassini's images because from the spacecraft's perspective, our planet is usually too close to the sun to photograph. (Cassini, like you and me, can't look at the sun for too long without suffering damage.)

But on Friday, Saturn moved between Cassini and the sun, casting the spacecraft in shadow and allowing it to look back toward the inner solar system without the risk of ruining the detectors on its cameras. Thanks to this orbital geometry, Saturn's rings were also backlit by the sun, giving Cassini the rare opportunity to snap images of the powdery dust in Saturn's rings in hyper-sharp detail.

NASA's social media team made a big deal of the 15-minute window when Cassini's lenses were trained on Earth, and created the "Wave at Saturn" campaign that encouraged people from all over the world to wave vigorously at a camera positioned hundreds of millions of miles away.

On Monday, NASA released some of the images of Earth captured by Cassini, including the first image to show the moon and Earth as two distinctive bodies by a camera located so far away.

In about six weeks, the agency will release a mosaic image of all of Saturn and its rings, with Earth just barely visible below it -- but that image will take a long time to stitch together, NASA officials said.

And as a surprise bonus, NASA also released a few images of Earth as seen from Messenger, a probe in orbit around Mercury 61 million miles away.

The Messenger images of our planet, which are more fuzzy and slightly less spectacular than the Cassini images, were also taken July 19.

[For the record, July 22, 7:22 p.m.: An earlier version of this post said the Cassini spacecraft was 898,500 million miles from Earth. The correct figure is 898.5 million.]

Earth, as seen from 900 million miles away (with new photos) - latimes.com
 

Insensitive

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:wow:
War Pony[/B said:
at 9:25 AM July 23, 2013]
And we still can't see any evidence of the 'moon landings?' Hmmm
Ian Calhoun[/SIZE said:
at 8:26 AM July 23, 2013]
Ian Calhoun[/SIZE said:
It's amazing what you can do with photoshop these days!
CharlesAustinMiller[/B said:
at 1:25 AM July 23, 2013]
I see the ignorant and uneducated atheists are in attendance tonight, utterly unable to explain how a multi-billion-dollar space probe is ever going to benefit Mankind, except for delivering incomprehensible photographs that provide "perspective" on our place in a thoroughly inexplicable Universe. Our Earthly Science has NO IDEA of what the Universe is or why it's here or how it operates — virtually ALL of our cosmology is pure THEORY that will NEVER be validated in the lifetime of our species. Given these indisputable facts, the atheist adoration of Science is no more and no less than ANOTHER RELIGION.
Art Granda[/SIZE said:
at 7:12 PM July 22, 2013]
Art Granda[/SIZE said:
Nice addition of the "stars" in the background. The original images show no such objects, just empty black space. It would be a mistake to assume a universe teeming with life, when we all know in our hearts (and lately in our images) that we are the ONLY game in town, so to speak. Protect life, here is where it's at, and that's all.

:sadcam:
People are so stupid :snoop:
Dope pictures by the way.
 
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Insensitive

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900 million miles away? How did the picture get sent?
AnArticleByNasa said:
Like digital cameras (including cell phone cameras), spacecraft cameras do not have film. Instead, they contain a small device about the size of a postage stamp that's made up of thousands or even millions of tiny light-sensitive cells called "pixels" (from the words "picture element"). Each pixel is smaller than the width of a human hair. When the camera takes a picture, say of Jupiter, each pixel measures the brightness of a tiny part of the scene, much the way each little section of a film would. But these pixels can translate their measurement of the brightness into a number that is sent to a computer. For example, no light at all could be recorded as a 0, and a very bright light could be recorded as 100. Everything between deep black and brilliant white would be different shades of gray and would get a number between 0 and 100, based on how dark or bright the shade of gray.

All these numbers together, along with numbers that tell the location of each pixel in the scene, are all the information needed for another computer to recreate the picture. This kind of data can then be radioed through space to Earth, where the giant antennas of NASA's Deep Space Network receive the signal. Computers on Earth then turn the numbers back into the pixels that make up a picture from space, showing what the spacecraft's camera saw.

But, now you may be wondering how we get color pictures from space. For each color picture, different pictures are taken through different colored filters. Each colored filter lets through only a certain color of light. For example, a red filter lets through only red light. So the red-filtered pixel data will show the brightness of the red in the picture. If you put together the pixel data from three pictures, one taken through a red filter, one through a blue filter, and one through a green filter, you can recreate the original colors in the scene—and all from shades of gray!

Radio Waves transfer the information in a very
simple form that's decoded by a computer once it
gets back to them.


http://spaceplace.nasa.gov/review/dr-marc-technology/spacecraft-pictures.html
 

Marciano

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That's a crazy shot, just leaves so much to the imagination. What are stars to us, are other planets, and to other planets & such, we are a star.

No big bang created such a universe so vast & full of awe
 
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