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This website is not affiliated with, maintained, authorized, endorsed by, or in any way officially connected with NASA or any of its subsidiaries or affiliates. All NASA imagery is in the public domain unless otherwise noted. Data sourced from NASA Open APIs, Launch Library 2, and other open data services.

NASA Gallery

Explore NASA's vast collection of space images, videos, and audio from missions past and present.

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NASA's Image and Video Library: A Visual Archive of Space Exploration

NASA's Image and Video Library is one of the most comprehensive public archives of space imagery in the world, containing over 140,000 images, videos, and audio recordings spanning more than six decades of space exploration. From the earliest Mercury and Gemini missions through the Apollo Moon landings, the Space Shuttle era, and today's cutting-edge observations from the James Webb Space Telescope, this collection documents humanity's journey into the cosmos.

The library includes imagery from diverse sources: telescopes like Hubble and Webb that capture deep-space nebulae, galaxies, and exoplanets; planetary missions like the Mars rovers ( browse Mars photos) and Cassini at Saturn; Earth observation satellites ( see EPIC imagery); astronaut photography from the ISS; and documentation of rocket launches, spacecraft assembly, and ground testing. Most NASA images are in the public domain and free to download at full resolution for educational, editorial, and personal use.

Use the search bar above to find specific subjects — try queries like "Apollo 11," "Hubble Deep Field," "Mars surface," or "astronaut EVA." You can also filter by media type (image, video, or audio). For a daily curated experience, visit the Astronomy Picture of the Day.

Showing results for "Countdown Demonstration Test"

4,244 results found - Page 6 of 177

NASA image: KSC-97PC1611
Image
Nov 5, 1997

KSC-97PC1611

The STS-87 crew participates in Terminal Countdown Demonstration Test activities at Launch Complex 39B

KSC
NASA image: KSC-97PC1612
Image
Nov 5, 1997

KSC-97PC1612

The STS-87 crew participates in Terminal Countdown Demonstration Test activities at Launch Complex 39B

KSC
NASA image: KSC-97PC1610
Image
Nov 5, 1997

KSC-97PC1610

The STS-87 crew participates in Terminal Countdown Demonstration Test activities at Launch Complex 39B

KSC
NASA image: KSC-97pc442
Image
Mar 11, 1997

KSC-97pc442

STS-83 crew M113 driver training during Terminal Countdown Demonstration Test (TCDT

KSC
NASA image: KSC-97pc440
Image
Mar 11, 1997

KSC-97pc440

STS-83 crew M113 driver training during Terminal Countdown Demonstration Test (TCDT

KSC
NASA image: KSC-97pc438
Image
Mar 11, 1997

KSC-97pc438

STS-83 crew M113 driver training during Terminal Countdown Demonstration Test (TCDT

KSC
NASA image: KSC-97PC1609
Image
Nov 5, 1997

KSC-97PC1609

The STS-87 crew participates in Terminal Countdown Demonstration Test activities at Launch Complex 39B

KSC
NASA image: KSC-97PC1599
Image
Nov 4, 1997

KSC-97PC1599

The STS-87 crew participates in Terminal Countdown Demonstration Test activities at Launch Complex 39B

KSC
NASA image: KSC-97pc441
Image
Mar 11, 1997

KSC-97pc441

STS-83 crew M113 driver training during Terminal Countdown Demonstration Test (TCDT

KSC
NASA image: KSC-97PC1600
Image
Nov 4, 1997

KSC-97PC1600

The STS-87 crew participates in Terminal Countdown Demonstration Test activities at Launch Complex 39B

KSC
NASA image: KSC-97PC1608
Image
Nov 4, 1997

KSC-97PC1608

The STS-87 crew participates in Terminal Countdown Demonstration Test activities at Launch Complex 39B

KSC
NASA image: KSC-69P-558
Image
Jul 3, 1969

KSC-69P-558

KENNEDY SPACE CENTER, FLA. - Apollo 11 crew "suiting up" for Countdown Demonstration Test.

KSC
NASA image: KSC-97PC1607
Image
Nov 4, 1997

KSC-97PC1607

The STS-87 crew participates in Terminal Countdown Demonstration Test activities at Launch Complex 39B

KSC
NASA image: KSC-97PC1601
Image
Nov 4, 1997

KSC-97PC1601

The STS-87 crew participates in Terminal Countdown Demonstration Test activities at Launch Complex 39B

KSC
NASA image: KSC-08-S-00061-Converted
Video
Oct 31, 2008

KSC-08-S-00061-Converted

The STS-126 astronauts flew into NASA’s Kennedy Space Center in Florida on October 26 for their scheduled countdown...

KSC
NASA image: Artemis II CDDT - Suit Up and Walkout
Image
Dec 20, 2025

Artemis II CDDT - Suit Up and Walkout

NASA astronauts Reid Wiseman, Artemis II commander, Victor Glover, Artemis II pilot, Christina Koch, Artemis II...

KSC
NASA image: Artemis II CDDT
Image
Dec 20, 2025

Artemis II CDDT

Teams monitor the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid...

KSC
NASA image: Artemis II CDDT - Suit Up and Walkout
Image
Dec 20, 2025

Artemis II CDDT - Suit Up and Walkout

From left, NASA astronauts Reid Wiseman, Artemis II commander, Victor Glover, Artemis II pilot, Christina Koch,...

KSC
NASA image: Artemis II CDDT
Image
Dec 20, 2025

Artemis II CDDT

Teams monitor the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid...

KSC
NASA image: Artemis II CDDT
Image
Dec 20, 2025

Artemis II CDDT

NASA astronaut Randy Bresnick monitors the progress of a countdown demonstration test with Artemis II crewmembers...

KSC
NASA image: Artemis II CDDT
Image
Dec 20, 2025

Artemis II CDDT

Charlie Blackwell-Thompson, Artemis launch director, and Jeremy Graeber, assistant launch director, monitor the...

KSC
NASA image: Artemis II CDDT
Image
Dec 20, 2025

Artemis II CDDT

Jeremy Graeber, assistant launch director, monitors the progress of a countdown demonstration test with Artemis II...

KSC
NASA image: Artemis II CDDT
Image
Dec 20, 2025

Artemis II CDDT

Teams monitor the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid...

KSC
NASA image: Artemis II CDDT
Image
Dec 20, 2025

Artemis II CDDT

Charlie Blackwell-Thompson, Artemis launch director, monitors the progress of a countdown demonstration test with...

KSC
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Frequently Asked Questions About NASA Images

Are NASA images free to use?+
Yes, most NASA images are in the public domain and are free to use for educational, informational, and personal purposes. NASA's media usage guidelines state that NASA material is not copyrighted unless otherwise noted. However, the NASA logo and certain insignia are protected. Some images may include identifiable individuals or third-party content that requires additional permissions. Always check the specific image's usage rights and credit NASA as the source.
How many images does NASA have?+
NASA's Image and Video Library contains over 140,000 publicly accessible images, videos, and audio files spanning the agency's entire history, from the Mercury program of the 1960s to the latest James Webb Space Telescope discoveries. The collection grows daily as new missions capture imagery and archival materials are digitized. Individual mission archives, such as Mars rover photos, contain hundreds of thousands of additional images.
Can I download NASA images?+
Yes, you can download NASA images in multiple resolutions directly from this gallery. Each image detail page provides download links for original (full resolution), large (1920px), medium (960px), small (480px), and thumbnail sizes. NASA encourages the public to use these images for education, media, and personal projects. High-resolution originals are ideal for printing and professional use.

Explore More NASA Content

Astronomy Picture of the Day

Daily curated space image

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Mission updates & discoveries