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New photograph shows the Earth from Mars


Posted on Monday, 9 January, 2017 | Comment icon 12 comments

The image, though pixellated, shows our planet in incredible detail given the distance. Image Credit: NASA
NASA has recently published a stunning new photograph taken by the Mars Reconnaissance Orbiter.
Captured back in November of last year at a distance of 127 million miles, the remarkable shot shows both the Earth and the Moon against the blackness of space.

The image is a composite of two separate photographs that were taken by the probe's High Resolution Imaging Science Experiment (HiRISE) camera as part of its calibration process.

"For presentation, the exposures were processed separately to optimize detail visible on both Earth and the moon," NASA wrote. "The moon is much darker than Earth and would barely be visible if shown at the same brightness scale as Earth."

"The combined view retains the correct positions and sizes of the two bodies relative to each other."

"The distance between Earth and the moon is about 30 times the diameter of Earth."

Source: Engadget | Comments (12)

Tags: Mars, Earth, Moon


 
Recent comments on this story
Comment icon #3 Posted by Aftermath on 9 January, 2017, 17:06
So cool.
Comment icon #4 Posted by seanjo on 9 January, 2017, 20:54
Absolutely stunning...
Comment icon #5 Posted by Kiltedmusician on 10 January, 2017, 18:09
They probably took the picture when the moon's orbit was taking it around behind orin front of the earth and so it appears closer to the earth than 30 diameters but they stated that the correct proportions and distance wasshown implying that it was a straight shot from the side. ~edit, reading it again, even that cNt be true. They said they processed both images independently before combining them to show the right proportions and distance. Obviously you can't put 30 earth diameters in that space, so something is wrong with the way they positioned the earth and moon in that picture. Here's... [More]
Comment icon #6 Posted by Merc14 on 10 January, 2017, 18:50
You know, if you'd simply click on the NASA/JPL link you'd be able to read the entire explanation of how this image was made, that it is a combination of two separate images and why the two bodies appear so close together. http://www.jpl.nasa.gov/news/news.php?release=2017-004 From the JPL article: The image combines two separate exposures taken on Nov. 20, 2016, by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. The images were taken to calibrate HiRISE data, since the reflectance of the moon's Earth-facing side is well known. For prese... [More]
Comment icon #7 Posted by Aftermath on 10 January, 2017, 18:53
I'm not sure what is being debated... from the NASA website they state: "Earth and the moon appear closer than they actually are in this image because the observation was planned for a time at which the moon was almost directly behind Earth, from Mars' point of view, to see the Earth-facing side of the moon." http://mars.nasa.gov/news/2017/mro-home-planet-as-seen-from-mars-hirise&s=4
Comment icon #8 Posted by Derek Willis on 11 January, 2017, 15:45
It is always a good idea to check what NASA says before making comments. NASA has a strong policy - and rightly so - of only doing things that are of scientific value. For example, Carl Sagan had quite a job persuading them to use the camera on Voyager 1 to take the "Family Portrait" of the planets, including the famous "Pale Blue Dot" of the Earth. So, I was wondering what scientific value there is in the image of the Earth and Moon. NASA point out that the imaging was taken as a calibration procedure for the camera. If the bi-product of that is to allow us to see our home planet and its moon... [More]
Comment icon #9 Posted by rashore on 11 January, 2017, 17:32
- Thread cleaned - All right folks... knock it off with the CT bickering and such please.... and just keep the the OP topic. Rashore, moderating team
Comment icon #10 Posted by mesuma on 11 January, 2017, 23:20
The opening monologue to War of the Worlds springs to mind.
Comment icon #11 Posted by coolguy on 12 January, 2017, 4:53
What an awesome pic
Comment icon #12 Posted by brlesq1 on 12 January, 2017, 5:00
Seriously impressive picture. Just awesome.


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