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Electrified Aircraft Propulsion

APOD: 2026 July 28 – Barnards Loop over Twin Volcanoes

APOD Science APOD APOD: 2026 July 28 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss   APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
Posted July 28, 2026
Earth Observatory
Wildfires

Smoke Blankets Oregon

Lightning storms have ignited dozens of fires in central and eastern Oregon.
Posted July 28, 2026
Spot the International Space Station
Christopher L. Williams
Humans in Space
Johnson Space Center
NASA Headquarters

NASA Astronaut Chris Williams to Discuss Space Station Mission

NASA astronaut Chris Williams will recap his recent eight-month mission aboard the International Space Station during a news conference at 2:45 p.m. EDT Tuesday, Aug. 4, from the agency’s Johnson Space Center in Houston. NASA will stream this event live through a variety of platforms.
Posted July 27, 2026
Eclipses
Goddard Space Flight Center
Heliophysics
Johnson Space Center
Langley Research Center
Scientific Balloons
Skywatching
Solar Eclipses
The Sun
WB-57

NASA Science Soars During August Total Solar Eclipse

Each time the Moon covers the Sun during a total solar eclipse — darkening daytime skies and briefly revealing the Sun’s ethereal outer atmosphere, the corona — it presents new opportunities to better understand our star and its influence on Earth. On Wednesday, Aug. 12, as the next total solar eclipse sweeps over Greenland, Iceland, […]
Posted July 27, 2026
Christopher L. Williams

NASA Astronaut Chris Williams Returns to Earth

NASA astronaut Chris Williams is all smiles in this July 26, 2026, photo taken shortly after he landed with Expedition 74 Roscosmos cosmonauts Sergey Kud-Sverchkov, and Sergei Mikaev in Kazakhstan. This was Williams’ first mission.
Posted July 27, 2026
Astrophysics
Black Holes
Galaxies, Stars, & Black Holes
Galaxies, Stars, & Black Holes Research
Goddard Space Flight Center
Neil Gehrels Swift Observatory
Science & Research
Supermassive Black Holes
The Universe

NASA’s Swift Sees ‘Wandering’ Mega Black Hole Shredding Star

NASA’s Neil Gehrels Swift Observatory captured an “orphan” black hole lighting up as it devoured a star on the outskirts of a faraway galaxy. These phenomena are rare to begin with, and none had ever before been seen so far outside of a galaxy’s core. “We were looking for these star-shredding events as a way […]
Posted July 27, 2026
Humans in Space
International Space Station (ISS)

NASA to Cover Three US Spacewalks, Host Preview News Conference

Editor’s note: This media advisory was updated July 27, 2026 to reflect an updated start time for the spacewalk on Thursday, Aug. 6.
Posted July 27, 2026
Humans in Space
Christopher L. Williams
International Space Station (ISS)
Johnson Space Center

NASA Astronaut Chris Williams, Crewmates Return from Space Station

Concluding an eight-month science mission aboard the International Space Station, NASA astronaut Chris Williams returned to Earth on Sunday alongside Roscosmos cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev. The crew made its safe, parachute-assisted landing at 5:27 a.m.
Posted July 26, 2026
Earth
Earth's Moon
EscaPADE (Escape and Plasma Acceleration and Dynamics Explorers)
Goddard Space Flight Center
Heliophysics
Heliophysics Division
Science Mission Directorate
The Sun

NASA’s ESCAPADE Snaps Family Portrait of Earth, Moon

On July 3, one of NASA’s two Mars-destined ESCAPADE (Escape and Plasma Acceleration and Dynamics Explorers) spacecraft captured photos of Earth and the Moon in visible and thermal infrared light.
Posted July 24, 2026
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3
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1
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3
For Colleges & Universities
50
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1
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9
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1
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1
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8
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50
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6
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5
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4
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19
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4
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9
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112
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9
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14
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27
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1
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1
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13
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10
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7
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2
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1
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3
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4
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1
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54
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1
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11
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8
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35
Space Technology Research Grants
17
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6
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11
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4
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6
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21
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1
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3
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1
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2
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40
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3
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14
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31
Kathleen Rubins
2
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3
I Am Artemis
41
Landsat 4
1
Christopher L. Williams
8
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6
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26
STS-9
2
Matthew Dominick
5
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4
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16
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1
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16
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30
Benefits to Science
1
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13
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15
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4
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7
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1
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16
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7
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49
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1
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13
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5
Artemis
385
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1
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16
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6
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657
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5
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1
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48
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1
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5
Infrared Space Observatory (ISO)
1
Leadership
13
Comet 3IAtlas
1
Space Communications & Navigation Program
48
Earth Science
221
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4
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35
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1
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13
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7
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1
Andromeda Galaxy
8
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1
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5
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4
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4
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19
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1
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35
NASA+
6
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8
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20
Deniz Burnham
1
STS-51A
1
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27
NEOWISE
8
Expedition 73
5
Tracy Caldwell Dyson
8
Goddard Space Flight Center
712
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10
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7
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1
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8
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18
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1
Low Boom Flight Demonstrator
27
Community Partners
4
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34
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5
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3
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1
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4
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14
G. Reid Wiseman
25
Virtual Guest Program
11
HERA (Human Exploration Research Analog)
7
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1
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5
CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite)
1
Quasars
6
Human Lander Challenge
2
Kathryn C. Thornton
1
Artemis 1
17
Outside the Classroom
10
Ranger 7
2
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31
Landsat 5
2
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1
Solar Orbiter
2
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6
STS-93
1
MAVEN (Mars Atmosphere and Volatile EvolutioN)
18
Nicole Aunapu Mann
3
Find Your Place
11
Uncategorized
75
Grades 9-12 for Educators
14
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15
Bennu
6
Planetary Science
103
SBIR
1
Jessica U. Meir
3
Lunar Surface Innovation Initiative
11
Scientific Balloons
17
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6
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1
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5
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2
NASA Headquarters
138
Eugene A. Cernan
1
TESS (Transiting Exoplanet Survey Satellite)
22
Ganymede
1
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8
2017 Solar Eclipse
3
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4
The Universe
370
Geospace Dynamics Constellation (GDC)
1
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3
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3
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40
People of Armstrong
5
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3
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8
Learning Resources
151
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17
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21
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86
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6
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3
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2
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32
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13
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3
Anil Menon
5
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1
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6
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1
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2
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9
STS-1
1
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2
National Advisory Committee for Aeronautics (NACA)
6
Center Innovation Fund
3
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5
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1
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1
Marshall Astrophysics
48
Neptune
3
Expedition 74
4
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12
Goddard Technology
15
XMM-Newton (X-ray Multi-Mirror Newton)
3
AeroSpace Frontiers
59
Atmospheric Waves Experiment (AWE)
3
Physical Sciences Program
4
Ronald E. McNair
1
Irregular Galaxies
10
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22
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1
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8
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46
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6
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10
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1
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6
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1
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1
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1
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1
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32
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15
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40
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32
Kennedy Space Center
280
Artemis 2
202
Owen K. Garriott
1
Read it!
3
Ice Giants
1
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1
Citizen Science
107
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1
Dust Storms
4
STS-96
1
Media Resources
1
Nicole P. Stott
1
Fission Surface Power
1
Underway Recovery Test 11
1
Grades K - 4
6
Alan B. Shepard Jr.
1
BepiColombo
1
Planetary Science Division
70
SBIR STTR
8
Jessica Watkins
3
Lunar Surface Technology Research
3
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11
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3
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159
EMIT (Earth Surface Mineral Dust Source Investigation)
7
MAIA (Multi-Angle Imager for Aerosols)
4
NASA History
151
Europa
29
The Big Bang
4
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20
Water on Earth
39
2023 Solar Eclipse
9
National Space Council Users' Advisory Group (NSpC UAG)
1
Exoplanet Science
29
THEMIS-ARTEMIS (Time History of Events and Macroscale Interactions During Substorms - Acceleration, Reconnection, Turbulence and Electrodynamics of Moon's Interaction with the Sun)
1
Gerald Carr
1
William A. Anders
2
Advanced Space Suits
2
Astrogram
8
People of Goddard
81
Richard A. Mastracchio
1
InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport)
4
Leland D. Melvin
1
Commercial Crew
105
Space Flight Awareness (SFA)
1
Earth Science Technology Office
11
Super-Earth Exoplanets
10
Mini-RF Instrument
1
Oceanography
4
For Professionals
2
VERITAS (Venus Emissivity, Radio Science, InSAR, Topography & Spectroscopy)
3
Hayabusa 2
1
Animal Biology
1
Brown Dwarfs
11
Prizes, Challenges & Crowdsourcing News
10
Jonny Kim
5
SimLabs
2
DART (Double Asteroid Redirection Test)
9
STS-107
2
Mars Climate Orbiter
1