File:ISS-56 Ricky Arnold performs operations for the PCG13 experiment.jpg

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Description	English: NASA Astronaut Ricky Arnold performs microscope photo document operations for the Protein Crystal Growth-13 (PCG13) experiment. The PCG13 investigation seeks to enhance the way crystals are grown in a microgravity environment by allowing crew members to observe imperfections within a crystal and make real-time adjustments to follow-up experiments, rather than returning a sample to Earth and relaunching to try again. This dramatically reduces the time it takes to conduct an experiment aboard the space station and creates a timely, realistic and more cost-effective solution for prospective researchers.
Date	Taken on 31 August 2018
Source	https://www.flickr.com/photos/nasa2explore/44684092891/
Author	NASA

This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ISS056-E-160897.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

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This image, originally posted to Flickr, is currently not available on Flickr under the license specified on this page. However, please see {{PD-NASA}} for permission to use it under this license.

	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: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	22:58, 22 October 2018		5,568 × 3,712 (2.31 MB)	Ras67 (talk \| contribs)	== {{int:filedesc}} == {{Information \|description={{en\|1=NASA Astronaut Ricky Arnold performs microscope photo document operations for the Protein Crystal Growth-13 (PCG13) experiment. The PCG13 investigation seeks to enhance the way crystals are grown in a microgravity environment by allowing crew members to observe imperfections within a crystal and make real-time adjustments to follow-up experiments, rather than returning a sample to Earth and relaunching to try again. This dramatically re...

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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.

Camera manufacturer	NIKON CORPORATION
Camera model	NIKON D5
Exposure time	1/250 sec (0.004)
F-number	f/2.8
ISO speed rating	1,250
Date and time of data generation	14:53, 31 August 2018
Lens focal length	42 mm
User comments	NASA 3502398
Orientation	Normal
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Adobe Photoshop CC 2018 (Windows)
File change date and time	14:44, 5 September 2018
Exposure Program	Shutter priority
Exif version	2.21
Date and time of digitizing	14:53, 31 August 2018
APEX shutter speed	7.965784
APEX aperture	2.970854
APEX exposure bias	0
Maximum land aperture	3 APEX (f/2.83)
Metering mode	Pattern
Light source	Unknown
Flash	Flash fired, strobe return light detected, compulsory flash firing
DateTime subseconds	99
DateTimeOriginal subseconds	99
DateTimeDigitized subseconds	99
Color space	sRGB
Focal plane X resolution	1,552.0561218262
Focal plane Y resolution	1,552.0561218262
Focal plane resolution unit	3
Sensing method	One-chip color area sensor
File source	Digital still camera
Scene type	A directly photographed image
Custom image processing	Custom process
Exposure mode	Auto exposure
White balance	Auto white balance
Focal length in 35 mm film	42 mm
Scene capture type	Standard
Scene control	Low gain up
Contrast	Normal
Saturation	Normal
Sharpness	Normal
Subject distance range	Unknown
Serial number of camera	3502398
Lens used	28.0-70.0 mm f/2.8
Rating (out of 5)	0
Date metadata was last modified	09:44, 5 September 2018
Unique ID of original document	BD6DD02A2F02E71EF94D6DBD73EC079B

File:ISS-56 Ricky Arnold performs operations for the PCG13 experiment.jpg

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Nikon D5