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Stages of Star Formation

2026-06-18 16:13

An area inside a star-forming molecular cloud. The background is covered with layers of gas and dust in blue, green and yellowish colors. Thicker clumps of cold dust, dark brown to black, block out light completely. Stars lie among and atop the clouds, from small orange ones to large white or blue ones. Waves and streams of glowing whitish gas are created by jets from protostars colliding with the surrounding material.
This NASA/ESA/CSA James Webb Space Telescope Picture of the Month shows the giant molecular cloud Orion A, an area of the sky replete with star-forming clouds.
ESA/Webb, NASA & CSA, T. Megeath, M. Zamani (ESA/Webb) Acknowledgement: M. H. Özsaraç

This image, captured by NASA’s James Webb Space Telescope and released on June 5, 2026, shows just a small portion of one of the Orion Molecular Clouds, a long and massive filament of cold gas and dust beyond the Orion Nebula. Every stage of star formation — from the youngest stellar embryos to protoplanetary discs to newly-minted pre-main sequence stars — is contained within this scene which stretches 150 light-years across.

Read more about this image.

Image credit: ESA/Webb, NASA & CSA, T. Megeath, M. Zamani (ESA/Webb); Acknowledgement: M. H. Özsaraç

Hubble Glimpses Merging Galaxy Clusters

2026-06-18 11:36

2 min read

Hubble Glimpses Merging Galaxy Clusters

Several massive elliptical galaxies appear to sit in a nearly horizontal line across the center of the image. Numerous spiral, lenticular, and smaller elliptical galaxies dot the space surrounding the giant ellipticals.
This NASA Hubble Space Telescope image features a swarm of galaxies in the galaxy cluster called CL0016+1609 or MACS J0018.5+1626.
NASA, ESA, H. Ebeling (University of Hawaii), D. Coe (STScI, ESA, JWST); Image Processing: G. Kober (NASA/Catholic University of America)

This NASA Hubble Space Telescope image features a galaxy cluster, called CL0016+1609 or MACS J0018.5+1626, that is very bright at X-ray wavelengths and is one of the most extensively studied clusters at X-ray and radio wavelengths. The X-ray observations of this cluster revealed that it is two clusters merging along our line of sight.

Researchers requested time to observe CL0016+1609 with Hubble’s Advanced Camera for Surveys because that data would help them accurately measure the cluster’s dark-matter distribution, which helps them study the merger and the role of CL0016+1609 in the large-scale structure of the universe. Hubble can’t directly see dark matter, but its infrared and visible light observations can detect dark matter’s gravitational lensing effects on the normal matter Hubble observes.

The data in this image also includes observations with Hubble’s Wide Field Camera 3 taken as part of an observing program that obtained the first Hubble infrared images of 46 massive galaxy clusters and looked for distant galaxies gravitationally lensed by these clusters. Called RELICS (Reionization Lensing Cluster Survey), this survey found some 300 high-redshift candidate galaxies lensed by these clusters.

You can see the faint vertical arc of one of these distant galaxies in the image above. Look for it just to the left of the large elliptical galaxies in the center of the image. Another brighter, though shorter arc is visible just above and to the right of the large elliptical galaxies in the center of the image.

Media Contact:

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

El Niño Is Underway

2026-06-18 04:00

A global map centered on the Pacific Ocean shows a band of red, higher-than-normal water levels across the central and eastern equatorial Pacific and a broad patch off the coast of South America.
Higher-than-normal sea surfaces (red) are visible in the central and eastern Pacific on June 8, 2026, a few days before El Niño was declared. Data for the map were acquired by the Sentinel-6 Michael Freilich satellite and processed by scientists at NASA’s Jet Propulsion Laboratory (JPL).
NASA Earth Observatory/Lauren Dauphin

El Niño, characterized by warmer-than-normal water temperatures in parts of the equatorial Pacific, made its return in June 2026. Observations of sea surface height from the Sentinel-6 Michael Freilich satellite that month indicated that the 2026 event was continuing to strengthen.  

The natural, recurring phenomenon can have widespread effects, typically bringing wetter conditions to the U.S. Southwest and drought to countries in the western Pacific, such as Indonesia and Australia. NOAA declared an El Niño on June 11, after sea surface temperatures in the central and eastern equatorial Pacific measured at least 0.5 degrees Celsius above average for several consecutive months.

Meanwhile, NASA scientists have been observing a complementary sign of El Niño: areas of elevated sea surface height. When ocean water warms, it expands in volume and causes the sea surface to rise—making the water’s height a reliable indicator of ocean temperatures. Warmer-than-normal temperatures, hence higher sea surface heights, in parts of the equatorial Pacific Ocean are associated with El Niño.

The map above depicts sea surface height anomalies across the central and eastern Pacific Ocean as observed on June 8, 2026. Shades of red indicate sea levels that were higher than average. Normal sea level conditions appear white, and lower areas are blue.  

Data for the map were acquired by the Sentinel-6 Michael Freilich satellite—launched in 2020 by NASA and led by ESA (European Space Agency)—and processed by scientists at NASA’s Jet Propulsion Laboratory (JPL). Note that signals related to seasonal cycles and long-term trends have been removed to highlight sea level anomalies associated with El Niño and other short-term natural phenomena.

Earlier in spring 2026, the satellite started to detect precursor signs of El Niño as swells of warm water hundreds of miles wide, known as Kelvin waves, moved from the western Pacific to the eastern Pacific. That happens when trade winds in the western equatorial Pacific weaken and then temporarily reverse to blow from the west. Warm water piles up in the east, deepening the warm surface layer, lowering the thermocline, and suppressing the upwelling that usually keeps waters along the Pacific coasts of the Americas cooler.

This buildup of heat beneath the water’s surface is what sea surface height observations capture. It goes beyond surface temperature measurements to indicate how much heat is stored in the subsurface. That’s important because a shallow warm layer might not have much impact on climate and weather, while a large reservoir of heat below the surface can matter more.

According to JPL sea level researcher Severine Fournier, deputy project scientist for Sentinel-6 Michael Freilich, conditions in the western Pacific on June 8 looked similar to those from the same time in 1997, a year when an exceptionally strong El Niño emerged. Warm conditions in the eastern Pacific in 2026 have lagged behind, however, with fewer Kelvin waves built up by the same date.

Still, more warm Kelvin waves appeared to be approaching the eastern Pacific, meaning El Niño was still strengthening. Whether it catches up to 1997 depends on ocean activity in the coming weeks. “For now, it looks like it’s going to be a big one—more so than I would have said last week—but we still need more observations to know what’s going to happen.”

NASA Earth Observatory image by Lauren Dauphin, using modified Copernicus Sentinel data (2023) processed by the European Space Agency and further processed by Josh Willis, Severin Fournier, and Kevin Marlis/NASA/JPL-Caltech. Story by Kathryn Hansen.

References & Resources

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Barents Sea Tied to Low Arctic Sea Ice

4 min read

Patches of open water in the region contributed to low sea ice extent across the Arctic in March 2026, which…

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New Eruption in the Bismarck Sea

5 min read

Satellite imagery shows a surge of new volcanic activity in the ocean near Papua New Guinea.

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Color Off the Mid-Atlantic Coast

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Something is brewing in shallow waters offshore of Delaware, New Jersey, Maryland, and Virginia.

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NASA Announces Public-Private Partnership to Advance Mars Science

2026-06-17 22:29

NASA Administrator Jared Isaacman stands in front of a large, cylindrical, gray spacecraft with a white Relativity logo on it and addresses hundreds of Relativity Space employees. A large American flag hangs from the ceiling.
NASA Administrator Jared Isaacman announces a public-private partnership to advance Mars science during an event at Relativity Space on June 17, 2026.
Credit: Relativity Space

NASA Wednesday announced a new public‑private partnership to advance Mars science by combining the agency’s scientific leadership with commercial innovation. Under this model, NASA will provide the Aeolus atmospheric‑science instrument payload suite, while Relativity Space supplies the spacecraft, rocket, and cruise operations necessary to deliver the instruments to Mars.

This partnership reflects NASA’s growing commitment to approaches that accelerate discovery, expand mission cadence, and strengthen the foundation for future human exploration. By leveraging commercial investment and development capacity, NASA can focus resources on high‑value science while enabling more frequent opportunities to gather critical data about Mars, data essential to safely navigating the Martian atmosphere and ultimately landing humans on the surface.

“Public-private partnerships like this are a force multiplier for science,” said NASA Administrator Jared Isaacman. “By pairing NASA’s world‑class instruments with commercial innovation and investment, we can deliver more science, more often, and reduce the time it takes to get essential data into the hands of researchers preparing for future human missions to Mars.”

Aeolus, scheduled to launch in 2028, is a NASA‑developed suite of four complementary instruments designed to provide the first integrated, daily, global view of Martian winds, temperatures, dust, and clouds. By improving models for dust, winds, temperature, and seasonal atmospheric behavior, Aeolus will generate the detailed environmental knowledge required to reduce risk for future crewed and uncrewed landings. These measurements will directly inform entry, descent, and landing systems and support safer, more predictable mission planning for astronauts.

Aeolus builds on more than two decades of NASA missions that have studied the Martian atmosphere, including orbiters such as MAVEN (Mars Atmosphere and Volatile Evolution), the Mars Reconnaissance Orbiter, and Mars Odyssey, while taking the foundation laid by earlier missions even further, continuing NASA’s tradition of expanding the frontiers of Mars science. Researchers at NASA’s Ames Research Center in California’s Silicon Valley will design, build, and integrate the payload, while Relativity Space will manage spacecraft development and mission operations.

“As NASA’s Innovation Center of Excellence, Ames is committed to delivering the technologies, capabilities, and creative partnerships that enable the agency’s boldest missions,” said Dr. Eugene Tu, center director, NASA Ames. “Aeolus reflects how innovative collaboration accelerates science and strengthens the foundation needed for one day landing humans on Mars.”

The Aeolus payload suite includes four NASA‑built instruments:

  • Doppler Wind and Temperature Sounder (DWTS‑Ozone): Measures wind and temperature profiles from the surface up to approximately 37 miles (60 km). A collaboration with GATS.
  • Thermal Limb Sounder (TLS): Provides vertical temperature profiles and observations of dust and water‑ice clouds. A collaboration with Xiomas Technologies.
  • Surface Radiometric Sensor Package (SuRSeP): Measures surface energy balance, dust, and cloud properties.
  • Wide‑Field Context Camera (WFCC): Captures daily global images of atmospheric activity.

NASA will support operations of science instruments for at least one Martian year, while Relativity Space maintains the spacecraft. As part of the agreement, NASA will develop the data‑processing pipeline needed to transform raw measurements into high‑quality, ready‑to‑use data products for broad scientific use.

This effort is supported under NASA’s first six‑year reimbursable Space Act Agreement, providing a stable framework for sustained collaboration, predictable development, and mission continuity.

Learn more about Mars science at:

https://science.nasa.gov/mars

-end-

Camille Gallo / Cheryl Warner
Headquarters, Washington
202-358-1600
camille.m.gallo@nasa.gov / cheryl.m.warner@nasa.gov

Jeanne Neal
Ames Research Center, Silicon Valley
650-604-4789
jeanne.c.neal@nasa.gov

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Last Updated
Jun 18, 2026
Editor
Jessica Taveau
Search for Hidden Cosmic Companions in Sun’s Backyard

2026-06-17 19:40

Some stars have planets. Others are orbited by brown dwarfs, balls of gas too massive to be planets, but too low-mass to be stars. Astronomers love these brown dwarf-star pairs because being paired with a star helps reveal a brown dwarf’s age. Ages of astronomical objects are often hard to measure, but essential for understanding how they form. 

Now, you can join NASA’s new Backyard Worlds: Binaries project and help astronomers discover these rare and interesting pairs. As a volunteer, you’ll inspect images from NASA’s Wide-field Infrared Survey Explorer (WISE) space telescope. Brown dwarfs may appear as small dots moving across a field of otherwise static stars. 

“We need your help to gain critical insights into these enigmatic cosmic objects,” said project lead Aaron Meisner.

Brown dwarfs are common but mysterious because they are so faint. There’s one for every three or four stars in our corner of the Milky Way galaxy. They are important laboratories for understanding giant planets like Jupiter.

Join the Backyard Worlds: Binaries project today and help astronomers understand where and when brown dwarfs form! You can also try one of our other brown dwarf-related projects: Backyard Worlds: Cool Neighbors! Anyone with a laptop or cell phone can participate. Participation does not require citizenship in any particular country.

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Last Updated

Jun 18, 2026

Editor
NASA Science Editorial Team

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Texas government data breach allowed hackers to steal 3 million driver’s licenses and passports

2026-06-18 17:12

A data breach involving government-issued ID documents affects over three million people in Texas.
‘Queer Eye’s’ life coach Karamo Brown launches Kē, a wellness app featuring his AI digital clone

2026-06-18 16:55

Karamo Brown, famous for his pep talks on Netflix’s “Queer Eye,” has jumped into the wellness and AI space with his new app, Kē. After spending a year and a half focusing on his own journey—from fitness and nutrition to meditation, sobriety, relationships, and personal growth—Brown wants to help others do the same.  Kē offers […]
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