Month: July 2026

Understanding How Martian Auroras Are Made – This 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 mission.

This 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 mission.

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NASA Astronaut Chris Williams Returns to Earth – NASA astronaut Chris Williams is seen outside the Soyuz MS-28 spacecraft after he landed with Expedition 74 Roscosmos cosmonauts Sergey Kud-Sverchkov, and Sergei Mikaev in a remote area near the town of Zhezkazgan, Kazakhstan on Sunday, July 26, 2026. The trio returned to Earth after logging 241 days in space as a members of Expeditions 73 and 74 aboard the International Space Station.

NASA astronaut Chris Williams is seen outside the Soyuz MS-28 spacecraft after he landed with Expedition 74 Roscosmos cosmonauts Sergey Kud-Sverchkov, and Sergei Mikaev in a remote area near the town of Zhezkazgan, Kazakhstan on Sunday, July 26, 2026. The trio returned to Earth after logging 241 days in space as a members of Expeditions 73 and 74 aboard the International Space Station.

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The aurora australis arcs over Earth during an active solar event in this photograph taken at approximately 11:32 p.m. local time from the International Space Station as it orbited 271 miles above the Indian Ocean southwest of Perth, Australia on June 5.

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From left, Expedition 74 flight engineers Anna Kikina and Pyotr Dubrov of Roscosmos, and Anil Menon of NASA pose for a portrait while holding a cake celebrating their recent arrival aboard the International Space Station.

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Crews at NASA’s Michoud Assembly Facility in New Orleans transport the 130-foot-tall liquid hydrogen tank out of a production cell inside the main factory building into a detached test building on a separate portion of the 829-acre site.

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This composite of images taken by NASA’s Psyche mission shows the crescent of Mars grow as the spacecraft approached the planet for a gravity assist from May 2 to May 15, 2026. Because Psyche approached Mars from a high phase angle, the planet appeared as a thin crescent in the days running up to the close approach, lit by sunlight reflecting off its surface.

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Our First View of the Surface of Mars – On the morning of July 20, 1976, roughly 40 minutes after mission controllers received word that the Viking 1 lander had successfully touched down on the surface of Mars, this photo gave us our first view from the surface of another planet.

On the morning of July 20, 1976, roughly 40 minutes after mission controllers received word that the Viking 1 lander had successfully touched down on the surface of Mars, this photo gave us our first view from the surface of another planet.

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Anil Menon Launches to Space Station – NASA astronaut candidate Anna Menon and her children watch as a Soyuz rocket launches to the International Space Station with Expedition 75 crewmembers NASA astronaut Anil Menon and Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, Tuesday, July 14, 2026, at Site 31/6 at the Baikonur Cosmodrome in Kazakhstan.

NASA astronaut candidate Anna Menon and her children watch as a Soyuz rocket launches to the International Space Station with Expedition 75 crewmembers NASA astronaut Anil Menon and Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, Tuesday, July 14, 2026, at Site 31/6 at the Baikonur Cosmodrome in Kazakhstan.

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In the Picture of the Month from the James Webb Space Telescope, we are taken on a visit to a building site of significant scale. The project is a galaxy cluster named MACS J0553.4-3342, located in the constellation Columba (the Dove).

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Picture of the day
The Jefferson Memorial in Washington, D.C. commemorates the third president of the United States, Thomas Jefferson (April 13, 1743 – July 4, 1826). Today marks the 200th anniversary of Jefferson’s death as well as the 250th anniversary of the signing of the Declaration of Independence, drafted primarily by Jefferson.
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Picture of the day
Willan’s chromodoris (Chromodoris willani), Anilao, Philippines. This 5 centimetres (2.0 in)-long nudibranch can be found in the Western Pacific Ocean and feeds, like many other nudibranchs, on sponges.
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Picture of the day





A 1981 Ribbon schematic of the 3D structure of the protein triose phosphate isomerase by Jane Richardson. Today is voice actress Tajja Isen’s birthday. She voiced Betty Barrett aka the titular hero in the 2004 Canadian animated series Atomic Betty
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Picture of the day
A 1981 Ribbon schematic of the 3D structure of the protein triose phosphate isomerase by Jane Richardson. Today is voice actress Tajja Isen’s birthday. She voiced Betty Barrett aka the titular hero in the 2004 Canadian animated series Atomic Betty
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The Artemis II crew participates in the dedication of the Apollo 14 Moon tree at the Lunar Receiving Park at NASA’s Johnson Space Center. This tree is a second-generation Apollo Moon tree of the loblolly pine species.

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