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A Trio of Tropical Cyclones in the Pacific

2026-09-04 04:01

In a full-disk satellite view of Earth, three tropical cyclones—named Lowell, Karina, and Marie—swirl above the blue waters of the Pacific Ocean and to the west of Central America.

When hurricane forecasters released their seasonal outlooks in spring 2026, the El Niño brewing in the Pacific contributed to predictions of below-normal activity in the Atlantic basin but above-normal activity in the northeastern and central Pacific basins. In early September, near the climatological peak of hurricane season, those spring outlooks were on target, with the eastern Pacific buzzing with activity and the Atlantic notably quiet.

As of September 3, the Northeast Pacific had produced 15 named storms and six hurricanes, well above the norm for that point in the season. The Atlantic basin, meanwhile, laboring under unfavorable wind shear conditions, had produced just five named storms and no hurricanes. El Niño typically enhances hurricane activity in the eastern and central Pacific basins because of the unusually warm water temperatures it brings to those parts of the ocean. It tends to suppress hurricane activity in the Atlantic basin by shifting large-scale circulation patterns in a way that makes it harder to sustain storms there.

At 1:14 p.m. Pacific Daylight Time (20:14 Universal Time) on September 1, NASA’s EPIC (Earth Polychromatic Imaging Camera) on the DSCOVR (Deep Space Climate Observatory) satellite captured an image of three tropical cyclones churning simultaneously in the Pacific, along with one in the Atlantic. A band of clouds and thunderstorms associated with the Intertropical Convergence Zone (ITCZ) is visible to the south of the storms. The spacecraft was nearly 1 million miles from Earth and just shy of 93 million miles from the Sun when the image was acquired.

The trio of storms in the Pacific were Lowell, Karina, and Marie. Of the three, Lowell became the strongest, with winds reaching category 5 strength for several hours on September 2. Around the same time, Karina, spinning a few thousand kilometers to the east, achieved category 4 strength, a rare case of category 4 and 5 hurricanes occurring simultaneously in the area. Marie, spinning southwest of Baja California, was still a tropical storm when the image was acquired but was strengthening as it moved northwest.

In the Atlantic, Tropical Storm Edouard was visible to EPIC over Louisiana and Texas, shortly after the short-lived storm made landfall. It brought torrential rains and strong winds that downed trees and power lines. Some areas received 15 to 24 inches (38 to 61 centimeters) of rain, according to National Weather Service meteorologists.

As of September 3, the Atlantic basin’s total accumulated cyclone energy (ACE) index was 4.4, about 9 percent of normal for that date, according to statistics compiled by Colorado State University meteorologists. Meanwhile, the Northeast Pacific basin’s ACE was 130, about 50 percent above normal. The ACE index incorporates both the intensity and longevity of storms, making it easier to compare individual storms and seasons.

Several NASA Earth-observing platforms provide data that can aid in emergency preparedness before landfall and damage assessment and response afterward. Use the “Events” tab on NASA’s Worldview browser to track current hurricanes and explore related NASA data products.

NASA Earth Observatory image by Lauren Dauphin, using data from DSCOVR EPIC. Story by Adam Voiland.

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NASA to Cover Progress 96 Spacecraft Launch, Docking

2026-09-03 17:06

The Progress 92 cargo spacecraft from Roscosmos departs the International Space Station while soaring into an orbital sunset 267 miles above the Russia–Mongolia border.
The Roscosmos Progress 92 cargo spacecraft is photographed in March 2026 from the International Space Station as it flies into an orbital sunset 267 miles above Earth’s surface.
Credit: NASA

NASA will provide live coverage of the launch and docking of a Roscosmos cargo spacecraft carrying about three tons of food, fuel, and supplies for the crew aboard the International Space Station.

The unpiloted Progress 96 resupply spacecraft is scheduled to launch at 12:15 p.m. EDT (9:15 p.m. Baikonur time), Wednesday, Sept. 9, on a Soyuz rocket from the Baikonur Cosmodrome in Kazakhstan. NASA’s live launch coverage will begin at 12 p.m.

After a two-day trip to the space station, Progress will dock autonomously to the Poisk module’s space-facing port at 2:37 p.m., Friday, Sept. 11. NASA’s arrival coverage will begin at 1:45 p.m.

NASA will stream these events live through a variety of platforms. Learn where to watch online:

https://www.nasa.gov/live

The spacecraft will remain docked to the orbiting laboratory for about five months before departing to re-enter Earth’s atmosphere, where it will harmlessly burn up over the Pacific Ocean.

Before Progress 96 arrives, the Progress 94 spacecraft will undock from the space station at approximately 11:18 a.m., Monday, Sept. 7, for its departure and planned destructive re-entry. NASA will not stream coverage of Progress 94 undocking.

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.

Learn more about the International Space Station, its research, and crew, at:

https://www.nasa.gov/station

-end-

Joshua Finch / Jimi Russell
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov / james.j.russell@nasa.gov

Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov

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Last Updated
Sep 03, 2026
Editor
Jessica Taveau
Curiosity Blog, Sols 4988-4994: More New Tricks for an Old Dog

2026-09-03 15:59

2 min read

Curiosity Blog, Sols 4988-4994: More New Tricks for an Old Dog

A close-up view of the Martian surface taken by the Curiosity rover. The terrain consists of fine, reddish-brown sand scattered with small rocks. On the center-left, a prominent pebble casts a distinct shadow to the right. In the upper right area, there is a shallow, circular depression in the soil, revealing the slightly rougher texture beneath the top layer of dust. Faint, straight lines or cracks are visible intersecting across the dusty terrain.
NASA’s Mars rover Curiosity acquired this image using its Mars Hand Lens Imager (MAHLI), showing an example of a broad pit that appeared in workspaces this week. The pit diameter is about 1 centimeter (0.39 inches). MAHLI is located on the turret at the end of the rover’s robotic arm, and uses an onboard focusing process to make a composite of images of the same target acquired at different focus positions, in order to make a single image that brings as many features into focus as possible. Curiosity created the composite on Aug. 19, 2026 — Sol 4989, or Martian day 4,989 of the Mars Science Laboratory mission — at 07:59:21 UTC.
NASA/JPL-Caltech/MSSS

Written by Michelle Minitti, MAHLI Deputy Principal Investigator

Earth planning date: Friday, Aug. 21, 2026

After Curiosity’s 14 years on the surface, Mars continues to surprise. Both of our workspaces this week contained features unlike quite anything we have seen in the past — broad, shallow pits (like the one in the image above) dotted across the bedrock. Pits are not uncommon — when resistant nodules or pebbles weather out of their host rock, they leave behind a void. But the pits of this week were much broader and shallower than past features and were not accompanied by obvious objects that were once in the pits. MAHLI and Mastcam were particularly interested in these features, acquiring stereo mosaics of them and tightly overlapping image sets that can be turned into a digital elevation model of their structure. They were a welcome new puzzle into the processes that have affected this particular section of rocks in the stratigraphy of Mount Sharp. 

The “typical” bedrock was anything but boring. Mastcam imaged and ChemCam rastered across complex packages of layers with changes in texture and structure over short vertical differences. These might be evidence of changes in depositional conditions captured in close proximity to one another. ChemCam, MAHLI, and APXS analyzed gray, rough, resistant layers that differed from the host bedrock, likely indicative of a different chemistry. ChemCam studied one of the gray float rocks (like the small, loose pebble in the image above) that have been scattered variably across our workspaces, to try to understand the origins of these stones. Farther afield, the “Cordillera” butte continued to garner attention, with a comprehensive Mastcam mosaic covering its entire visible face, and more focused ChemCam RMI mosaics aimed at specific horizons. The “Tolhuaca” and “Potosí” buttes, which are farther south down “Valle Grande,” were also targets, with ChemCam looking for potential crossbedding and assessing the mineralogy of dark material capping Potosí. 

Our environmental science team members were just as busy, planning REMS, Mastcam, and Navcam activities at a higher-than-usual cadence to monitor a potential regional dust storm. They found by the end of the week, however, that the storm appeared to be dissipating. 

We managed to accomplish all of this despite having lost one of our planning days due to a lost downlink. 

A rover sits on the hilly, orange Martian surface beneath a flat grey sky, surrounded by chunks of rock.
NASA’s Curiosity rover at the base of Mount Sharp
NASA/JPL-Caltech/MSSS

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Last Updated

Sep 03, 2026

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Igniting Roman’s Journey

2026-09-03 14:24

A SpaceX Falcon Heavy rocket launches with NASA’S Nancy Grace Roman Space Telescope onboard from Launch Complex 39A on Aug. 30, 2026, at Kennedy Space Center in Florida.
NASA/Joel Kowsky

Now on a three-month, million-mile journey to its final orbit, NASA’s Nancy Grace Roman Space Telescope will soon reveal the universe’s darkest secrets. The mission launched at 7:26 a.m. EDT on Aug. 30 aboard a SpaceX Falcon Heavy rocket from Launch Complex 39A at the agency’s Kennedy Space Center in Florida.

Roman pairs a large field of view with crisp infrared vision to explore vast swaths of the sky and probe deeply into cosmic history. This flagship mission will help astronomers explore dark matter, dark energy, and worlds outside of our solar system, known as exoplanets.

Roman is the fourth primary mission NASA has launched on a Falcon Heavy rocket. Earlier this year, the agency’s Launch Services Program worked with SpaceX to accelerate the launch date to accommodate the space telescope’s early completion.

NASA’s Hubble Spies Superbubble Scene

2026-09-03 13:16

3 min read

NASA’s Hubble Spies Superbubble Scene

A dense field of stars fills the image, surrounded by wispy clouds of gas and dust. Pale blue and grey nebulosity forms an intricate web across the scene, with darker clouds of dust concentrated towards the lower right. Numerous bright stars appear in shades of blue, white, and orange.
This Hubble Space Telescope image features the picturesque nebula LHA 120-N44, or N44.
NASA, ESA/Hubble, D. Gouliermis

This NASA/ESA Hubble Space Telescope image features a sprawling cosmic vista in the Large Magellanic Cloud, or LMC, the largest of the small galaxies that orbit our Milky Way galaxy. At just 160,000 light-years away, the LMC offers a close look at highly active star birth sites like the one in this image. This photogenic nebula, named LHA 120-N44, or N44, is in the constellation Dorado.

N44 is dominated by two features: a vast central void and a shell of dense, dusty gas. The central void is a ‘superbubble’ spanning roughly 210 by 140 light-years across. The glittering stars at the center of the void are responsible for its creation; through their powerful stellar winds and explosive supernovae, these stars expelled much of the gas from which they were born.

When the stars of N44’s central star cluster swept away this gas, the expelled gas compressed and formed a shell around the superbubble. New stars are forming in this compressed gas shell, making N44 an interesting target for astronomers who are using the nebula to study how stars form in this environment. Their goal is to understand how long it takes from the collapse of cold gas clouds into dense knots to the moment nuclear fusion ignites in the heart of a newborn star.

The data in this image is from an observing program (#14689; PI: Gouliermis) that used Hubble to survey N44 and take a census of its stars, cataloging nearly half a million stars within the cluster as well as interlopers drifting in front of it. Of the stars surveyed, nearly 30,000 are what astronomers call pre-main-sequence stars, which have yet to begin fusing hydrogen into helium in their cores. Astronomers discovered this treasure trove of baby stars thanks to the high sensitivity and fine spatial resolution of Hubble’s instruments that can pick out faint objects in crowded clusters.

The gas shell surrounding the superbubble is energized by ultraviolet radiation from massive stars, causing it to glow and highlighting several distinct features. Each feature within the broader N44 star-forming complex was cataloged by astronomer Karl Henize in the 1950s. One feature is a smaller bubble, cataloged as N44F, that is located near the upper-right corner of this image. N44F is an interstellar bubble blown by the intense stellar winds of a single hot and massive star. As this previously released Hubble closeup shows, the star’s furious winds and radiation have sculpted the surrounding bubble and created pillars of dusty gas.

Hubble’s sensitive observations of the lowest-mass stars in this region open a new window onto star formation in regions that, like the LMC or the galaxies in the early universe, are poor in elements heavier than helium.

Text Credit: ESA/Hubble

Media Contact:

Claire Andreoli
NASA’s Goddard Space Flight CenterGreenbelt, MD
claire.andreoli@nasa.gov

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