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APOD

APOD: 2026 July 29 – Psyche Receives Gravity Assist from Mars

A video of the Psyche spacecraft flying by Mars.
Posted July 29, 2026

Understanding How Martian Auroras Are Made

This July 23, 2026, illustration depicts charged particles from a solar storm stripping away charged particles of Mars’ atmosphere, one of the processes of Martian atmosphere loss studied by NASA’s MAVEN (Mars Atmosphere and Volatile Evolution) mission.
Posted July 29, 2026
Astrophysics
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
James Webb Space Telescope (JWST)
Science & Research
The Universe

NASA Webb Explores Family Tree of Newly Discovered Distant Objects

Since their discovery by NASA’s James Webb Space Telescope in 2022, little red dots (LRDs) have been the subject of great interest to astronomers. Understanding the nature of these extremely distant, compact red sources has been a puzzling scientific endeavor.
Posted July 29, 2026
Stennis Space Center

Contractor to Civil Servant: NASA Welcomes Ray Williams

Ray Williams’ progression at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, has uniquely prepared him for his new role.
Posted July 29, 2026
Aqua
Earth Observatory
Goddard Space Flight Center
PACE (Plankton, Aerosol, Cloud, Ocean Ecosystem)
Terra
Water Blooms

Sizing Up the Sargassum Belt

Seaweed composing the Great Atlantic Sargassum Belt hit near-record levels in June 2026, with the Caribbean Sea and Gulf of America both reaching all-time highs.
Posted July 29, 2026
APOD
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
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4
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1
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29
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8
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7
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5
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26
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10
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29
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13
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245
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9
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143
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6
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28
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114
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143
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688
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42
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6
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7
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37
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23
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22
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277
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