NASA offers its 800GB Artemis II record two ways, as a browsing page and a researchers' archive
NASA has posted about 800GB of Artemis II mission data, including more than 11,000 photos and videos and 8.5 hours of audio. Anyone can download it, though the raw archive is organized for researchers and a curated science page is the version built for everyone else.
The Product Desk
In the Moon section of NASA's Planetary Data System, a public repository, users browse Artemis II collections, documents and files and download scientific files with metadata. Science page visitors get a less technical route: the three reports, selected photographs and the audio library.
- What's now possible capability Planetary Data System users In the Moon section, browse Artemis II collections, documents and files; download scientific files and metadata for analysis, claim 4
- What's now possible capability Science page visitors A less technical route: download the three reports, view a selection of photographs and access the mission's audio library, claim 5
| Who | How | Kind | Claim |
|---|---|---|---|
| Planetary Data System users | In the Moon section, browse Artemis II collections, documents and files; download scientific files and metadata for analysis | capability | 4 |
| Science page visitors | A less technical route: download the three reports, view a selection of photographs and access the mission's audio library | capability | 5 |
What happened
- NASA describes the archive as the first planetary science data gathered off Earth, mostly by humans directly, in more than half a century, with Apollo the closest precedent.
- Three documents came with the data: a Preliminary Lunar Science Report, a Lunar Science Operations Report and a Lunar Science Data User Guide.
- Early analyses detected five small meteoroid impacts on the lunar surface during the 54-minute eclipse the Orion crew observed.
- Photographs near the terminator show how terrain and visibility change under a low sun, conditions common near the south pole where NASA plans the next Artemis missions.
- Crew observations recorded differences in color, brightness and texture among lunar regions that scientists can compare with composition maps taken from orbit.
Why it matters
- Who's exposed exposure Outside researchers can re-run NASA's preliminary findings on the deposited files using NASA's own user guide, so a count that does not hold up can be challenged in public.
- What's now possible capability Groups outside NASA get raw material for estimating how often centimeter-scale fragments hit the Moon, an input to risk calculations for future bases, vehicles and astronauts.
- What it sets up precedent Publishing a crewed mission's raw record with a user guide alongside the first reports sets a bar we'd expect later Artemis crews' south pole observations to be held to.
Next story · Science · 5d ago
Four Artemis II astronauts logged far-side geology and lunar impacts for NASA's science reportConfirmed2 publishers
The Verge singled out one clip in the release: the Artemis II crew telling the ground team in Houston that they had seen impact flashes on the dark side of the Moon, flashes that could have been the faintest observed with the human eye [15]. The archive also holds the image the crew marked up to show where they saw them [2].
The pitch is that anyone can access the data. Wired reported that this is true, and that the release is primarily intended for the scientific community [7]. It named planetary geologists, flight engineers, heliophysicists, telecommunications and remote-sensing experts and meteoroid-impact specialists as the people it may help most [8].
In effect NASA shipped two products under one announcement, each with its own way in. The Artemis II science page lets a visitor download the three reports, view a selection of photographs and open the audio library [5]. The Planetary Data System, the public repository where NASA keeps data from its planetary missions, holds the scientific files and their metadata, browsable by collection in its Moon section and downloadable one file at a time [4]. Per-file download matters at this size. If the photos and videos took up the entire 800GB, they would average about 73MB per item, and because audio and other files share that total, the real average is lower [14].
For readers without a lab, Wired pointed to the mission transcripts and the photographs the astronauts annotated themselves as the most accessible material [6]. We think those are the center of the public release, because they record what the crew said they saw. A researcher working from raw frames still needs that account to match images to what the crew reported.
The five-impact count is the obvious place to test the open-data claim. Neither The Verge nor Wired reported whether the eclipse frames behind NASA's count are among the files deposited in the Planetary Data System.
A team deciding where to start can sort its use on two axes: whether the work needs a raw file or a finished product, and whether it depends on the crew's own account.
- Finished product, no crew account: the photo selection and the three reports on the science page [5]. - Finished product with crew account: the transcripts, the annotated photographs and the audio library [5][6]. - Raw file, no crew account: the Planetary Data System, opened with the Lunar Science Data User Guide in hand [3][4]. - Raw file with crew account: the deposit plus the crew's annotations [2][4]. Re-checking a finding happens here.
Our recommendation for anyone building a product or a paper on this release is to start in the two raw-file quadrants and pull only the files a question needs. The tradeoff is time. The raw side comes with a user guide to read first [3]. The science page is quicker, but it carries only a selection of photographs [5], so anything built on it inherits NASA's choice of what to show.
What to watch
- Whether the Planetary Data System deposit includes the eclipse frames behind NASA's five-impact count, so outside teams can redo it.
- Independent analyses from outside NASA, such as impact-rate estimates or comparisons with orbital composition maps, that confirm or revise the preliminary report.
- Whether NASA publishes data from the south pole Artemis missions with the same raw archive, curated page and user guide.
Clarity's read
What the record supports and how the coverage leans. The claims behind it follow.
Reality
- Evidence62
- Adoption
- Not scored
- Hype gap+15
- Incentives
- Not scored
- Confidence66
Claim ledger
Ranked by verification strength, evidence, and original report placement.
- [1]
This week NASA posted over 800GB worth of science data, images, and videos on the Artemis II: Sights & Sounds of Science site.
- [2]
The archive includes over 11,000 photos and videos, over 8.5 hours of audio, and crew-annotated images, such as one marking where the crew saw impact flashes on the dark side of the Moon.
- [3]
Alongside the data, NASA released three documents: the Artemis II Preliminary Lunar Science Report, the Artemis II Lunar Science Operations Report, and the Artemis II Lunar Science Data User Guide.
- [4]
NASA centralized access through its Planetary Data System, the public repository where it stores data from its planetary missions; in the Moon section users can browse Artemis II collections, documents and files, and the scientific files and their metadata are available for individual download and analysis.
- [5]
For a less technical exploration, NASA set up an Artemis II science page where visitors can download the three reports, view a selection of photographs, and access the mission's audio library.
- [6]
For space and astronomy enthusiasts, some of the most accessible materials include mission transcripts and lunar photographs annotated by the astronauts themselves.
- [7]
Anyone can access the near terabyte of data, though the release is primarily intended for the scientific community.
- [8]
The information may be particularly useful for planetary geologists, flight engineers, heliophysicists, experts in telecommunications and remote sensing, and specialists in meteoroid impacts.
- [9]
Initial analyses detected five small meteoroid impacts on the lunar surface during the 54-minute eclipse observed by the Orion crew.
- [10]
Recording these flashes will improve estimates of how often fragments a few centimeters in size strike the Moon, a key factor in calculating the risks future bases, vehicles, and astronauts will face.
- [11]
NASA describes the release as the first set of planetary science data obtained outside Earth and, for the most part, directly by humans in more than half a century; the closest comparable precedent is the Apollo era.
- [12]
Photographs taken near the terminator show in detail how terrain and visibility change when the sun is very low; these conditions will be common near the south pole, where NASA plans the next Artemis missions, and the data can help astronauts anticipate navigation, lighting and terrain-recognition challenges.
- [13]
The observations documented differences in color, brightness, and texture among lunar regions, which scientists can compare with composition maps previously obtained from orbit.
- [14]
If photos and videos accounted for the entire 800GB, they would average about 73MB per item; since audio and other files share the total, the actual average per photo or video is lower.
- [15]
The release includes footage of the Artemis II crew telling the ground team in Houston about its observation of impact flashes; the flashes on the dark side of the Moon could have been the faintest observed with the human eye.
Sources
2 independent publishers whose own reporting we read for this story.
- theverge.comNASA dumped over 800GB of Artemis II data online
1 article · October 11, 2026
- wired.comNASA Just Made Nearly 1 TB of Artemis II Data Available to the Public
1 article · October 9, 2026
Topics and entities
Topics
- Planetary Science
- Lunar Exploration
- Open Science Data
Entities
- Orion
- Artemis II
- NASA
- Planetary Data System