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Astronomy
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Gamma-ray Bursts: Harvesting Knowledge From the Universe’s Most Powerful Explosions

The most powerful events in the known universe – gamma-ray bursts (GRBs) – are short-lived outbursts of the highest-energy light. They can erupt with a quintillion (a 10 followed by 18 zeros) times the luminosity of our Sun. Now thought to announce the births of new black holes, they were discovered by accident. The backstory […]
Posted February 6, 2024
Glenn Research Center
Commercial Lunar Payload Services (CLPS)
Cryogenic Fluid Management (CFM)
Technology Demonstration

NASA Tests New Spacecraft Propellant Gauge on Lunar Lander

Editor’s note, Feb. 6, 2024: This article has been updated to clarify that the Radio Frequency Mass Gauge estimates how much propellant is available in a tank. It does not make an exact measurement. It’s easy to measure fuel in tanks on Earth, where gravity pulls the liquid to the bottom. But in space, the game […]
Posted February 6, 2024
Dark Energy
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Euclid
Galaxies
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SPHEREx (Spectro-Photometer for the History of the Universe and Ices Explorer)
Stellar Evolution
The Big Bang
The Universe

What is Dark Energy? Inside our accelerating, expanding Universe

Some 13.8 billion years ago, the universe began with a rapid expansion we call the big bang. After this initial expansion, which lasted a fraction of a second, gravity started to slow the universe down. But the cosmos wouldn’t stay this way. Nine billion years after the universe began, its expansion started to speed up, […]
Posted February 5, 2024
Marshall Space Flight Center
People of NASA

NASA Administrator Announces New Marshall Space Flight Center Director

NASA Administrator Bill Nelson on Monday named Joseph Pelfrey director of the agency’s Marshall Space Flight Center in Huntsville, Alabama, effective immediately. Pelfrey has served as acting center director since July 2023. “Joseph is a respected leader who shares the passion for innovation and exploration at NASA Marshall.
Posted February 5, 2024
STEM Engagement at NASA
Jet Propulsion Laboratory

University High School Wins Regional Science Bowl at NASA’s JPL

After months of preparation, more than 100 students competed at the fast-paced annual academic competition hosted by NASA’s Jet Propulsion Laboratory. For the second year in a row, a team from Irvine’s University High School claimed victory at a regional competition of the National Science Bowl, hosted Saturday, Feb.
Posted February 5, 2024
Langley Research Center
Commercial Lunar Payload Services (CLPS)

NASA’s Laser Navigation Tech Enables Commercial Lunar Exploration

Later this month, NASA’s commercial lunar delivery services provider Intuitive Machines will launch its Nova-C lunar lander carrying several NASA science and technology payloads, including the Navigation Doppler Lidar (NDL).
Posted February 5, 2024
NASA History
Bruce McCandless
Humans in Space
Robert L. Gibson
STS-41B

The Iconic Photos from STS-41B: Documenting the First Untethered Spacewalk

As astronaut Bruce McCandless II flew the Manned Maneuvering Unit (MMU) out of the space shuttle Challenger’s payload bay for the first time on February 7, 1984, many in the agency were fearful about the use of a self-propelled and untethered backpack in space.  (Previous spacewalkers remained connected to the vehicle with tethers.
Posted February 3, 2024
2024 Solar Eclipse
Eclipses
Skywatching
Solar Eclipses

Meet the Creators, Part 3: NASA’s 2024 Total Solar Eclipse Posters

A total solar eclipse is a captivating experience – evoking feelings of awe and wonder that are sometimes best expressed through art. Inspired by the upcoming total solar eclipse of April 8, 2024, artists Tyler Nordgren and Kristen Perrin have designed two posters for NASA that present the magic of the eclipse in unique ways. […]
Posted February 2, 2024
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6
Earth's Magnetic Field
4
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4
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10
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8
Gaia
1
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6
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1
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9
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2
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39
Landsat 9
9
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307
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3
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6
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3
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14
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1
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1
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7
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13
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13
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39
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37
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6
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141
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90
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2
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3
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26
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357
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2
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3
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1
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32
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5
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42
People of Johnson
59
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8
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18
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5
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1
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5
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1
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1
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1
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24
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4
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4
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4
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13
Grades K - 4 for Educators
12
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46
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27
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17
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2
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125
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13
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9
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1
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5
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3
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5
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4
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30
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1
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1
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23
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10
Gerald Carr
1
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14
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2
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195
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25
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2
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7
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10
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222
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5
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11
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1
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147
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91
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4
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99
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1
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1
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7
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183
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1
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8
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2
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1
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19
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132
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3
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1
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3
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4
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4
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1
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3
Expedition 73
5
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3
ADEOS (Advanced Earth Observing Satellite) / MIDORI
1
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32
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2
SERVIR (Regional Visualization and Monitoring System)
4
Aeronautics Technology
5
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6
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3
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17
Johnson's Mission Control Center
5
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1
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19
Coronal Diagnostic Experiment (CODEX)
3
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9
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1
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11
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5
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9
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21
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3
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1
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1
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10
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1
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24
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10
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2
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2
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3
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10
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11
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1
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8
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1
NASA Engineering & Safety Center Academy
1
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4
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3
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11
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55
Airborne Science
27
Binary Stars
6
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1
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2
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2
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1
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1
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22
The Human Body in Space
2
Europa
29
NICER (Neutron star Interior Composition Explorer)
8
Women at NASA
27
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49
Artemis 2
129
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10
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1
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1
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2
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8
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20
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5
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3
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4
Magellan
2
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17
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1
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15
Earth's Vital Signs
1
NASA STEM Projects
9
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6
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6
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73
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210
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1
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5
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1
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1
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3
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2
STS-51A
1
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9
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1
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24
Michael R. Barratt
2
Ocean Worlds
2
Expedition 74
1
GOES-U
4
Advanced Air Mobility
19
Astrogram
8
Project Mercury
3
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4
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6
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2
Aura
2
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15
SmallSats Program
5
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4
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1
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15
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2
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45
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5
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10
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131
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3
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27
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6
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3
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20
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1
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22
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2
Life on Earth
1
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66
STS-93
1
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4
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2
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4
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36
Fission Surface Power
1
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37
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24
Viking 1
1
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18
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3
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12
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41
Research and Technology at Kennedy Space Center
15
Solar System Ambassadors
1
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1
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14
STS-1
1
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1
The Kuiper Belt
5
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28
Nichole Ayers
4
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17
Glenn History
29
Artemis 3
34
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1
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46
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4
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1
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1
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1
Earth Observatory
40