File:KSC-05-S-00255 (ksc 080805 mro smrekar6).webm
KSC-05-S-00255_(ksc_080805_mro_smrekar6).webm (WebM audio/video file, VP9/Opus, length 1 min 22 s, 320 × 212 pixels, 245 kbps overall, file size: 2.41 MB)
Captions
Summary
editDescriptionKSC-05-S-00255 (ksc 080805 mro smrekar6).webm |
English: Our next question comes from Palak from Chicago. How will the Mars Reconnaissance Orbiter find out about the ground's chemical components from orbit? Okay. Well, we have a spectrometer onboard, and as the name implies, it uses the spectrum of light to look at the surface in a range of wavelengths. You've probably seen light go through a prism and split into a range of colors.The spectrum of light in the visible wavelength actually has a whole bunch of different colors at different wavelengths. So, as light strikes the surface, depending on how that light interacts with the surface, some of it will be absorbed in one color or reflected in another color, and that tells us what the color is. Similarly, a spectrometer looks at a different part of the spectrum, not the visible part but a different part, and it looks at the spectrum that's returned. So, given mineral, you know, like quartz and calcite, they look the same, they're white, it's a little bit hard to tell them apart, but with the spectrometer, as they look at it in a different part of the wavelength, different parts on the surface, the different elements and atoms in that, in that mineral, will cause the spectrum to have a different appearance. It'll, it'll be absorbed in one part and reflected in another part. So each mineral has its own unique signature that we can see from using the spectrometer onboard. |
||
Date | Taken on 18 August 2005 | ||
Source |
|
||
Author | NASA Kennedy Space Center | ||
Keywords InfoField | satellites; mission; exploration; mars; mars_reconnaissance_orbiter; mro |
Licensing
editPublic domainPublic domainfalsefalse |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
Warnings:
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 02:15, 10 May 2024 | 1 min 22 s, 320 × 212 (2.41 MB) | OptimusPrimeBot (talk | contribs) | Imported media from http://images-assets.nasa.gov/video/ksc_080805_mro_smrekar6/ksc_080805_mro_smrekar6~orig.mp4 |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
Transcode status
Update transcode statusMetadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Short title | MRO Webcast 8-8-05 |
---|---|
Copyright holder | 2005 |
Software used |