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Hubble Captures Galaxy Cluster

2026-05-22 11:37

2 min read

Hubble Captures Galaxy Cluster

A cluster of galaxies dots the field of view. The cluster holds spiral and elliptical galaxies against a black background. A foreground star with diffraction spikes shines brightly toward the bottom, center-right of the image.
NASA’s Hubble Space Telescope captured this scene of galaxy cluster MACS J1141.6-1905 in visible and infrared light.
NASA, ESA, H. Ebeling (University of Hawaii); Image Processing: G. Kober (NASA/Catholic University of America)

Look closely at this image from NASA’s Hubble Space Telescope and you’ll see galaxies of various shapes and sizes clustered together toward the center-left of the image. A few foreground stars shine brightly and are easily distinguished by the spikes that appear to extend outward from each star. These spikes, called diffraction spikes, are the result of how point sources of light (such as stars) bend, or diffract, around the supports for Hubble’s secondary mirror.

Hubble captured this scene of MACS J1141.6-1905 in visible and infrared light. The image includes data from two Hubble observing programs that looked at massive galaxy clusters that shine very brightly in X-rays. Both programs were looking for distant galaxies gravitationally lensed by the cluster. They also wanted to better understand the physical nature of interactions at each cluster’s core. An extra bonus was the addition of Hubble’s visible and infrared observations of these very bright X-ray clusters to its archive.

Hubble’s archive of 1.7 million observations, and counting, is a valuable tool for current and future astronomers. They can mine Hubble’s 36 years of observations and examine the data with new tools, enabling researchers to make new discoveries.

MACS J1141.6-1905 is around four billion light-years away in the constellation Crater (the Cup).

Media Contact:

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

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Last Updated

May 22, 2026

Editor
Andrea Gianopoulos

Tornado Draws a Jagged Line in Mississippi

2026-05-22 04:01

A tan line of tornado-damaged vegetation runs from left to right across the mostly green landscape south of Brookhaven, Mississippi.
Vegetation damaged by an EF-3 tornado in southern Mississippi appears in a tan line in an image acquired on May 12, 2026, with the OLI (Operational Land Imager) on Landsat 8.
NASA Earth Observatory/Lauren Dauphin

A powerful supercell storm produced multiple tornadoes across southern Mississippi on May 6, 2026. The longest and most powerful spanned five counties, delivering wind speeds up to 137 miles (220 kilometers) per hour and EF-3 damage, as gauged by the Enhanced Fujita Scale, to several areas.

Part of this tornado’s destructive path was visible to the Landsat 8 satellite when it passed over the area on May 12. Winds snapped, uprooted, and tore bark and branches off trees, creating a brownish track across the landscape. This area, south of Brookhaven in Lincoln County, was one that sustained EF-3 damage. National Weather Service (NWS) post-event damage assessments noted extensive tree damage, a home whose exterior walls collapsed, and a mobile home park “devastated with debris.”

The tornado covered much more ground than is captured in this scene. It began in St. Catherine Creek National Wildlife Refuge near the Mississippi River, approximately 60 miles (100 kilometers) west-southwest of Brookhaven. In just over two hours, it traveled nearly 82 miles (132 kilometers), placing it among some of the longest tornadoes recorded in Mississippi. Heavy tree damage occurred along its entire path, NWS surveys found, with several instances of EF-2 structural damage and bent or collapsed transmission towers.

Seven tornadoes occurred in Mississippi on the evening of May 6, according to NWS preliminary data as of May 20. The Mississippi Emergency Management Agency received reports of damage to more than 400 homes and dozens of businesses and farm buildings statewide after the storms, according to a news release, the majority of which were in Lincoln County.

The Gulf Coast and other southeastern states are not considered part of what’s commonly known as Tornado Alley, an area encompassing much of the U.S. central and southern plains where supercells tend to form. However, this belt of southeastern states is also tornado-prone, experiencing a relatively high frequency of tornadoes in spring and late autumn. Historically in Mississippi, the most monthly tornadoes—an average of more than seven—occur in April, while May averages just over three. Some recent analyses have found decreases in tornado frequency in the Great Plains and increases in the Southeast over several decades.

NASA Earth Observatory images by Lauren Dauphin, using Landsat data from the U.S. Geological Survey. Story by Lindsey Doermann.

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NASA to Showcase Mission to Boost Swift Spacecraft’s Orbit

2026-05-21 21:36

Staff in white lab coats observe a black and gray spacecraft in a room with warm, yellow light.
Engineers from Katalyst stabilize their LINK robotic servicing spacecraft during environmental testing at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, on Wednesday, April 15, 2026. The LINK spacecraft will be encapsulated in Northrop Grumman’s Pegasus XL rocket, for launch in late June on a mission to boost the orbit of NASA’s Neil Gehrels Swift Observatory.
Credit: NASA/Scott Wiessinger

Media are invited to NASA’s Wallops Flight Facility in Virginia on Wednesday, June 17, to view Northrop Grumman’s Pegasus XL rocket, carrying a Katalyst robotic spacecraft that will attempt to boost the orbit of NASA’s Neil Gehrels Swift Observatory.

Katalyst’s robotic servicing spacecraft, called LINK, will launch on Pegasus in June to rendezvous with Swift and raise its altitude, extending its science mission lifespan.

Both United States and international media may apply for onsite credentials to view the Pegasus and the L-1011 Stargazer aircraft that will deploy the rocket at launch. In addition to interview opportunities on site, media also will receive images and video of LINK, as the spacecraft already will be encapsulated in the rocket.

NASA and Katalyst also will host an audio-only media teleconference on June 17 to preview the mission to boost Swift’s orbit. Audio of the media teleconference will stream live on NASA’s YouTube channel. Information about timing and teleconference participants will be shared closer to the event.

The application deadline for U.S. citizens to attend in person is 4 p.m. EDT, Wednesday, June 10. International media without U.S. citizenship must apply by 3 p.m. EDT, Wednesday, May 27. NASA’s media accreditation policy is available online.

Media requesting to participate in person or join the media call must send their accreditation requests to Amy Barra at: amy.l.barra@nasa.gov, with the following information:

  • Legal first and last name (must match government identification)
  • Email
  • Phone number
  • Job title and organization
  • Citizenship

The Swift mission, which launched in 2004, leads NASA’s fleet of space telescopes in studying changes in the high-energy universe. It studies gamma-ray bursts — the most powerful explosions in the universe — and other cosmic objects and events. When a rapid, sudden event takes place in the cosmos, Swift serves as a “dispatcher,” providing critical information that allows other “first responder” missions to follow up to learn more about how the universe works.

Learn more about the mission to boost Swift’s orbit at:

https://science.nasa.gov/mission/swift/swift-boost-mission

-end-

Karen Fox / Alise Fisher
Headquarters, Washington
202-385-1287 / 202-358-2546
karen.c.fox@nasa.gov / alise.m.fisher@nasa.gov

Amy Barra
Wallops Flight Facility, Wallops Island, Virginia
757-824-1579
amy.l.barra@nasa.gov

NASA Joins Artemis Accords Workshop as Global Signings Rise

2026-05-21 21:03

Representatives of the Artemis Accords signatories including the United States, led by NASA and the U.S. Department of State, met May 13–14, 2026, in Lima for the fourth annual Artemis Accords workshop.
Representatives of the Artemis Accords signatories including the United States, led by NASA and the U.S. Department of State, met May 13–14, 2026, in Lima for the fourth annual Artemis Accords workshop.
Credit: Ministry of Foreign Affairs of Peru and Peruvian Space Agency (CONIDA)

The United States participated in an Artemis Accords workshop in Lima, Peru, last week, following a new wave of nations committing to safe and responsible exploration of the Moon, Mars, and beyond.

Leading up to the event, six countries, including Latvia, Jordan, Morocco, Malta, Ireland, and Paraguay, joined the growing coalition of Artemis Accords signatories during ceremonies held at NASA Headquarters and abroad. This brings the total number of Artemis Accords signatories to 67 like-minded nations.

“This gathering showcases the remarkable global momentum behind the Artemis Accords and our Artemis program,” said NASA Administrator Jared Isaacman. “The Artemis Accords were created in President Trump’s first term and, as we execute his National Space Policy, we are putting these principles into practice. By aligning our capabilities, acting with urgency, and moving forward as partners, these signatory countries will help shape the future, not from the sidelines, but as essential contributors to humanity’s first permanent outpost on the Moon. Each and every Artemis Accords signatory has the opportunity to play a meaningful role with NASA as we work together to build a sustained human presence on the surface of the Moon.”

On May 13-14, representatives from NASA and the U.S. Department of State joined dozens of counterparts from 30 countries, including several of the newest signatories, for technical discussions and a tabletop exercise focused on operating in complex lunar environments.

Peru hosted the fourth annual workshop, marking the first time the gathering has taken place in South America.

“One of our objectives in hosting this edition of the workshops in our country was to increase regional participation,” said Maj. Gen. Roberto Melgar Sheen, director of Peruvian Space Agency (CONIDA). “I am pleased to say that we have achieved this: All South American signatory countries are taking part in this event, with 90% participating in person and 10% virtually.”

The Artemis Accords community reviewed planned lunar landing and orbiting missions from all the signatories in attendance. With more than a dozen lunar landing missions expected over the next 18 months, last week’s discussions and tabletop exercises focused on non-interference, interoperability, release of scientific data, orbital debris and mitigation. These conversations included a presentation on NASA’s exploration plan, which accelerates the agency’s missions to the Moon. Artemis Accords signatories now have expanded opportunities to support NASA’s Moon Base and deepen their participation in the broader Artemis program, following the agency’s Ignition event on March 24.

“Peru joined the Artemis Accords in 2024, aiming to participate in a cutting-edge dialogue mechanism that addresses global trends in space exploration. We aspire to forge cooperative ties with the signatories of the Artemis Accords that contribute to the scientific and aerospace development of our country,” said Peru’s Vice Minister of Foreign Affairs Ambassador Felix Denegri about the workshop.

During the first Trump Administration, the United States, led by NASA and the U.S. State Department, joined with seven other founding nations in 2020 to establish the Artemis Accords in response to the growing interest in lunar activities by both governments and private companies. Today, countries representing every region of the world have committed to responsible principles for exploration.

Signing the Artemis Accords means a commitment to the peaceful and transparent exploration of space; rendering aid to those in need; enabling access to scientific data; ensuring activities do not interfere with those of others; and preserving historically significant sites and artifacts by developing best practices.

More countries are expected to sign the Artemis Accords in the months and years ahead, as NASA continues its work to establish a safe, peaceful, and prosperous future in space. 

For more information about the Artemis Accords, visit:

https://www.nasa.gov/artemis-accords

-end-

Camille Gallo / Elizabeth Shaw
Headquarters, Washington
202-358-1600
camille.m.gallo@nasa.gov / elizabeth.a.shaw@nasa.gov

NASA Seeks Interest for Artemis Mission CubeSats

2026-05-21 20:11

Two of the Artemis II CubeSats can be seen in the lower portion of the Orion stage adapter on the right side of the image.
Two of the Artemis II CubeSats can be seen in the lower portion of the Orion stage adapter on the right side of the image.
NASA

Organizations interested in launching CubeSats on future Artemis missions should respond to NASA’s request for information (RFI) by Monday, June 1, for initial consideration.

“The SLS (Space Launch System) rocket and the Artemis missions provide great opportunities for teams to conduct important, science and technology investigations that contribute to the expansion of human space exploration,” said Courtney Ryals, acting manager, SLS payload integration, NASA’s Marshall Space Flight Center in Huntsville, Alabama.

The RFI will inform potential future opportunities for CubeSats to fly on Artemis III, IV and V. While NASA is reviewing specific mission profiles, the agency expects to accommodate 6U and 12U-sized CubeSats that would deploy in Earth orbit or on a heliocentric disposal trajectory following the separation of the Orion spacecraft from the rocket, as the nanosatellites would deploy from a ring on the upper stage of the rocket. Opportunities may also exist for CubeSats deployed on a reentry trajectory from Earth orbit.

CubeSat sizes are measured in “one unit” or “1U” increments, each measuring 10x10x10 centimeters.

NASA flew 10 CubeSats on the uncrewed Artemis I mission in 2022 and four on the crewed Artemis II mission, deploying each after the upper stage detached from the spacecraft and Orion was flying free on its own to carry out its primary mission. In addition to providing a ride to space as secondary payloads, the agency provides payload integration and engineering support.

As part of the Golden Age of innovation and exploration, NASA will send Artemis astronauts on increasingly difficult missions to explore more of the Moon for scientific discovery, economic benefits, establish an enduring human presence on the lunar surface, and to build on our foundation for the first crewed missions to Mars.

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