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APOD: 2026 July 31 – NGC 4372 and the Dark Doodad

2026-07-31 04:05

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.

A telescopic image of a dark nebula.

NGC 4372 and the Dark Doodad

Explanation: The Dark Doodad Nebula drifts through southern skies, a tantalizing target for binoculars toward the small constellation Musca, The Fly. A dusty interstellar cloud, it’s seen against rich starfields just south of the Coalsack Nebula and the Southern Cross. Stretching for about 3 degrees across this telescopic field of view, the Dark Doodad is punctuated near its southern tip (upper right) by yellowish globular star cluster NGC 4372. Of course NGC 4372 roams the halo of our Milky Way galaxy, a background object some 20,000 light-years away and only by chance along our line-of-sight to the Dark Doodad. About 700 light-years distant and over 30 light-years long, the Dark Doodad’s well defined silhouette belongs to the potentially star-forming Musca molecular cloud. The dusty Dark Doodad’s delightfully alliterative moniker was first coined by astro-imager and writer Dennis di Cicco in 1986 while observing Comet Halley from the Australian outback.

Tomorrow’s picture: pixels in space

Date July 31, 2026
Credit Alessandro Cipolat Bares
Authors & editors: Robert Nemiroff, Jerry Bonnell, Cecilia Chirenti, Keighley Rockcliffe
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.

Destructive Fires Char Western Europe

2026-07-31 04:01

A brown patch of burned vegetation is visible on the landscape surrounding two reservoirs in a hilly region west of Madrid.
Charred landscapes surround reservoirs in central Spain in an image captured by the OLI (Operational Land Imager) on Landsat 9 on July 29, 2026. The false-color image combines observations at visible, near-infrared, and shortwave-infrared wavelengths (bands 6-5-3), making it easier to distinguish brown burned vegetation from green unburned vegetation.
NASA Earth Observatory / Lauren Dauphin

Wildland fires occur across Europe every summer, but those that erupted in Spain and France in July 2026 were among the largest and most disruptive the two countries have faced in decades. Some of the most consequential fires emerged in southwestern France’s Gironde Department and Spain’s Ávila and Madrid provinces in mid-July, where blazes forced hundreds of thousands of people to evacuate and destroyed hundreds of homes.

Government officials in Spain say that a fire in Ávila, after charring around 50,000 hectares (124,000 acres), is the largest on record, surpassing a blaze that burned in Larouco, Quiroga, and Oencia in 2025. NASA satellites first observed signs of the Ávila fire burning near Burgohondo on July 22 and July 23. By July 24, it had merged with fires in neighboring provinces, pushing the total area burned to 77,000 hectares, an area about the size of New York City.

The image above, captured by Landsat 9, shows charred landscapes around Burgohondo on July 29, 2026. In the false-color image, unburned vegetation appears light green, and burned areas appear brown. The two reservoirs in the center of the image were heavily affected. Flames tore through homes, restaurants, campgrounds, marinas, and other infrastructure surrounding the reservoirs, according to news reports.

A similar crisis unfolded in southwestern France, west of Bordeaux. One of the largest fires to burn in France this decade charred more than 42,000 hectares, prompting large-scale evacuations and devastating the village of Le Porge. As of late July, fires had burned more than 90,000 hectares across France, more than any other season in decades, according to data from the European Forest Fire Information System.

Environmental conditions months before the fires ignited made the landscape in both Spain and France particularly susceptible to burning, according to an analysis conducted by researchers with The State of Wildfires Project. Unusually wet winter weather enhanced vegetation growth in grasslands, shrublands, and forest understories, and then a series of sweltering heat waves and a period of drought parched the vegetation and primed it to burn. Several days of strong winds reaching 65 kilometers (40 miles) per hour at times served as the final trigger, the researchers found, fanning flames and encouraging rapid spread.

On July 25, conditions at fires in southwestern France grew so intense that French firefighters reported the formation of a pyrocumulonimbus—a towering type of “fire cloud” that draws convective energy from the heat of the fires. An international group of atmospheric scientists and fire experts who track the unusual clouds has documented the occasional formation of the clouds in Spain and Portugal in recent decades, but members of the group note that this is the first report of a fire in France producing one.

Thousands of firefighters and military personnel have battled fires in both countries. Crews have used aircraft to attack the fires with water and flame retardant, while teams on the ground have constructed firebreaks using tools ranging from bulldozers to hand tools. Firefighters gained the advantage by late July, allowing authorities to start lifting evacuation orders. However, forecasters are warning that the risk of fire in the coming days remains high due to the persistence of hot, dry conditions.

Government satellite data are part of a global system of observations used to track fire behavior and analyze emerging trends. Among the real-time wildfire monitoring tools that NASA makes available are FIRMS (Fire Information for Resource Management System) and the Worldview browser.

NASA Earth Observatory image by Lauren Dauphin, using Landsat data from the U.S. Geological Survey. Story by Adam Voiland.

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Fires Rage in Georgia

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Firefighters are battling two destructive blazes in the southern part of the state as drought grips the U.S. Southeast.

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Fires Tear Through Nebraska Grasslands

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Dry, warm, and windy conditions across the U.S. Great Plains led to extreme fire activity in March 2026.

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Cottonwood Fire Chars Utah

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The blaze burned more than 150 square miles and swept through parts of a ski resort.

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Students Take on Airborne Field Research with NASA

2026-07-30 20:36

3 min read

Students Take on Airborne Field Research with NASA

The gusty wind didn’t make it easy to hold tight to a balloon so large. The balloon, a scientific instrument called an ozonesonde, was about to be released into the atmosphere above the Texas Gulf Coast by students from NASA’s SARP (Student Airborne Research Program), which concluded its summer session July 27. The balloon’s job was to measure ozone concentrations as it rose through the atmosphere.

The center of the image shows a large white balloon. Beneath the balloon are five people in a circle, gently holding at the bottom of the balloon to keep it upright. In the background of the image, other people watch.
The SARP students in the atmosphere group prepare a weather balloon by filling it up with helium. The weather balloon will measure ozone in the atmosphere as it rises.
NASA/Sofie Bates

A dozen of the 48 undergraduate students participated in atmospheric field research. Guided by instrument scientists, university professors, and graduate students, the SARP students prepared the ozonesondes for takeoff. They chemically treated instrument cells attached to the sensor, wrangled the balloons during inflation, and finally, released them into the sky. As the balloons flew, the students monitored the data.

“This research program is a unique experience for students where they have the opportunity to see the different careers related to Earth system science,” said Yaitza Luna-Cruz, program manager for NASA’s Early Career Research Program at NASA Headquarters in Washington.

Each student was assigned to one of four disciplines: atmospheric science, oceans, terrestrial ecology, or hydrology. They gathered field data, designed individual research projects, and presented their findings at the end of the program. When possible, they cross-checked their measurements with NASA satellite missions.

SARP students and instrument scientists walk away from NASA’s G-V aircraft after their science flight. “If you ever have the opportunity to participate in SARP, I would recommend that you do it,” said Darriqa Jones, marine and environmental science student at Hampton University in Hampton, Virginia. “It’s a once in a lifetime experience.”
SARP students and instrument scientists walk away from NASA’s Gulfstream G-V aircraft after their science flight.
NASA/Erica McNamee

“This is such an awesome experience,” said Marin Stevens, a chemistry student from the University of Colorado at Colorado Springs, minutes after she released the ozonesonde into the atmosphere. “It’s way beyond what I would have expected.”

Airborne science was a highlight of the program. Five science aircraft supported the program this year, including NASA’s Gulfstream G-III, GV, and C-20A, Dynamic Aviation’s B200, and a P-III from the National Oceanic and Atmospheric Administration. Students worked alongside scientists operating various instruments, such as a laser designed to collect measurements on particulates in the atmosphere.

For many students, their time in Houston was their first foray into field research, and, like the students releasing the balloons, they were eager to continue to learn and experience hands-on science. After the first two weeks, the cohort split into two, with half of the students traveling to California and half to Virginia to continue their research.

Four students in green jumpsuits kneel on a concrete runway. The woman on the left is in a backbend, in the shape of the letter ‘n’. The student second from the left is kneeling with his hands above him, in the shape of the letter ‘A’. The student second from the right is kneeling sideways with her arms curled over her head, in the shape of the letter ‘S’. The student on the right is kneeling with her hands above her, in the shape of the letter ‘A’. In the background, an aircraft is seen on the runway.
SARP students celebrate finishing their first flight by making the NASA worm.
NASA/Sofie Bates

“The coolest part of SARP is the passion everyone has,” said Joelle Hopkins, SARP project manager, NASA Headquarters. “It’s so enjoyable to work with scientists, faculty, and graduate mentors who are passionate about the science, sharing the science with the students, and building the next generation of scientists.”

The annual eight-week program enhances what students are learning in the classroom by giving them hands-on field experience. It is designed to be a steppingstone into a career in field research or other STEM fields. Students participate in all aspects of a scientific campaign, including data collection, data analysis, and research. They attend science lectures and workshops, join research flights, and accompany scientists into the field.

To learn more about NASA’s Airborne Science Program, visit:

https://airbornescience.nasa.gov/

By Erica McNamee

NASA’s Goddard Space Flight Center, Greenbelt, Md.

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Last Updated

Jul 30, 2026

Editor
Jenny Marder
Contact
Erica McNamee
Location
Goddard Space Flight Center

NASA Assigns Astronaut Deniz Burnham to First Space Station Mission

2026-07-30 16:11

NASA astronaut Deniz Burnham poses for a portrait at NASA’s Johnson Space Center in Houston.
Credit: NASA/Robert Markowitz

NASA astronaut Deniz Burnham will embark on her first mission to the International Space Station, serving as an Expedition 76 flight engineer.

Burnham will launch aboard the Roscosmos Soyuz MS-30 spacecraft with cosmonauts Dmitri Petelin and Konstantin Borisov. Launch is targeted for March 2027, from the Baikonur Cosmodrome in Kazakhstan, and the trio will spend about seven months aboard the orbiting laboratory.

During her expedition, Burnham will conduct scientific investigations and technology demonstrations to help prepare humans for future exploration missions to the Moon and Mars and to benefit people on Earth.

Selected as a NASA astronaut in 2021, Burnham graduated with the agency’s 23rd astronaut class in 2024. Born at Incirlik Air Base in Adana, Turkey, Burnham moved frequently while growing up in a military family. She was living in Wasilla, Alaska, at the time of her selection.

A former intern at NASA’s Ames Research Center in California’s Silicon Valley, Burnham earned a bachelor’s degree in chemical engineering from the University of California, San Diego, and a master’s degree in mechanical engineering from the University of Southern California in Los Angeles. An experienced leader in the energy industry, she spent more than a decade managing onsite drilling operations on oil rigs across North America. Burnham also served in the U.S. Navy Reserves as an engineering duty officer. She is a licensed private pilot with ratings for airplane single engine land and sea, instrument airplane, and rotorcraft-helicopter.

For more than 25 years, people have lived and worked continuously aboard the International Space Station, advancing scientific knowledge and making research breakthroughs not possible on Earth. The space station helps NASA understand and overcome the challenges of human spaceflight, expand commercial opportunities in low Earth orbit, and build on the foundation for long-duration missions to the Moon, as part of the Artemis program, and to Mars.

To learn more about International Space Station research, operations, and its crews, visit:

https://www.nasa.gov/station

-end-

Joshua Finch
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov

Anna Schneider
Johnson Space Center, Houston
281-483-5111
anna.c.schneider@nasa.gov

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Last Updated
Jul 30, 2026
Starburst Galaxy Centaurus A

2026-07-30 14:24

The mid-infrared view of Centaurus A from NASA’s James Webb Space Telescope reveals dusty structures and hidden activity within the nearby, active galaxy.
Image: NASA, ESA, CSA, STScI; Image Processing: Alyssa Pagan (STScI), Joseph DePasquale (STScI), Macarena Garcia Marin (ESA Office at STScI)

In this July 6, 2026, image, NASA’s James Webb Space Telescope’s Mid-Infrared Instrument (MIRI) reveals the nearby galaxy Centaurus A, exposing the dusty structures and hidden activity that shape this unusual system.

Centaurus A is 11 million light-years away from Earth, relatively close in cosmic terms. Yet, unlike most nearby galaxies, it is very active, making it a powerful laboratory for understanding how galaxies and black holes grow and evolve together.

Explore the galaxy through an interactive map.

Image credit: NASA, ESA, CSA, STScI; Image Processing: Alyssa Pagan (STScI), Joseph DePasquale (STScI), Macarena Garcia Marin (ESA Office at STScI)

TechCrunch - Latest

Anthropic says its own AI models breached three companies during security tests

2026-07-31 01:06

After OpenAI's models broke into Hugging Face, Anthropic checked its own history and found three similar incidents
Apple stockpiles inventory as it braces for ‘significant supply constraints’

2026-07-30 23:28

Apple is worried enough about supply shortages that it reported about $11.1 billion in inventory, which is almost double the $5.7 billion it reported last September.
AI hedge fund Situational Awareness may have sold its public portfolio, but it still has its Anthropic shares

2026-07-30 23:25

The former OpenAI researcher’s fund was forced to unwind public equities after leveraged public bets plummeted. But he still has cards to play.
Reddit reports a solid quarter but shows signs of AI’s impact

2026-07-30 23:08

Reddit's financial situation is looking good but uncertainty about its relationship to Google and the new AI-ified web are stirring market concerns.
Investors love AI, as long as you’re a cloud host

2026-07-30 22:41

Amazon isn't slowing down on data center spending — but investors don't seem to mind.
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