Networks Keeping NASA’s Artemis II Mission Connected

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Networks Keeping NASA’s Artemis II Mission Connected

NASA’s Artemis II mission will transport four astronauts around the Moon, bringing the agency one step closer to sending the first astronauts to Mars. Throughout Artemis II, astronaut voice, images, video, and vital mission data must traverse thousands of miles, carried on signals from NASA’s communications systems.

Through Artemis, NASA is establishing an enduring presence in space and exploring more of the Moon than ever before. To achieve this, Artemis missions rely on both the Near Space Network and the Deep Space Network. These networks, with oversight by NASA’s SCaN (Space Communications and Navigation) Program office, use global infrastructure and relay satellites to ensure seamless communications and tracking as Orion launches, orbits Earth, travels to the Moon, and returns home.

“Robust space communications aren’t optional; they’re the essential link that unites the crew and the exploration team on Earth to ensure safety and mission success, as I learned firsthand living and working aboard the International Space Station,” said Ken Bowersox, associate administrator for NASA’s Space Operations Mission Directorate at the agency’s headquarters in Washington. “From real-time conversations with mission controllers, to the data that drives critical decisions and research, and even calls home — space communications keep astronauts connected to mission managers, technical experts, loved ones, and everyone on Earth who wants to share in the excitement of our exploration missions. As we push farther into deep space, reliable communications links will enable more challenging missions and maximize the benefit for all of us on Earth.”

«From real-time conversations with mission controllers, to the data that drives critical decisions, research, and even calls home, space communications keep astronauts connected.»

Ken Bowersox

Associate Administrator for NASA’s Space Operations Mission Directorate

Specialists will operate its networks in tandem to enable data exchange between spacecraft and mission controllers on Earth. NASA’s Mission Control Center at the agency’s Johnson Space Center in Houston will track the Space Launch System rocket, Interim Cryogenic Propulsion Stage, and Orion spacecraft through coordinated handoffs between the networks’ multiple assets on Earth and in space for the duration of the mission.

Using ground stations around the globe and a fleet of relay satellites, the Near Space Network will provide communications and navigation services during multiple stages of the Artemis II mission operations. The network, managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland, has a long legacy of supporting human spaceflight missions near Earth.

After Orion’s translunar injection burn, which will set the spacecraft on its planned orbit around the Moon, primary communications support will transition to the Deep Space Network, managed by NASA’s Jet Propulsion Laboratory in Southern California. The network’s international array of giant radio antennas, located in California, Spain, and Australia, provides a near-continuous connection to Orion and its crew.

“Reliable communications are the lifeline of human spaceflight,” said Kevin Coggins, deputy associate administrator for the SCaN Program at NASA Headquarters. “Our networks help make missions like Artemis II possible and set the stage for even more ambitious space exploration in the years ahead. These achievements are driven not only by NASA’s infrastructure but also by strong collaboration with our commercial partners, who play a critical role in advancing the capabilities and resilience of space communications.”

In addition to traditional radio network support, the spacecraft will host the Orion Artemis II Optical Communications System, a laser communications terminal that will transmit real science and crew data over laser links. Demonstrations like the recent Deep Space Optical Communications payload have proven laser communications systems can send more than 100 times more data than comparable radio networks, even millions of miles away from Earth. While laser communications will not be on Artemis III, the Orion Artemis II Optical Communications System could pave the way for future laser communications systems at the Moon and Mars.

The Orion Artemis II Optical Communications System payload is only one piece of NASA’s larger mission to improve lunar and deep space communications. Orion will experience a planned communications blackout lasting approximately 41 minutes. The blackout will occur as the spacecraft passes behind the Moon, blocking radio frequency signals to and from Earth. Similar blackouts occurred during the Apollo-era missions and are expected when using an Earth-based network infrastructure. When Orion reemerges from behind the Moon, the Deep Space Network will quickly reacquire Orion’s signal and restore communications with mission control. These planned blackouts remain an aspect of all missions operating on or around the Moon’s far side.

Each Artemis mission will build upon existing capabilities, including data processing and handling. For the Artemis II flight test, data from Orion will be compressed after it reaches Earth to manage the large amount of information. Data compression will reduce image and video quality and give priority to crew communications and mission data.

Looking ahead, NASA’s Lunar Communications Relay and Navigation Systems project is collaborating with industry to eliminate blackouts and support precise navigation by placing relay satellites around the Moon. This network of orbiting satellites will deliver persistent, high-bandwidth communications and navigation services for astronauts, landers, and orbiters on and around the lunar surface. In 2024, NASA selected Intuitive Machines to develop the first set of lunar relays for demonstration during the Artemis III lunar surface mission. 

 From liftoff to splashdown, NASA’s evolving networks will serve as the crew’s link home, ensuring that humanity’s return to the Moon stays connected every step of the way.

About the Author

Katherine Schauer

Katherine Schauer is a writer for the Space Communications and Navigation (SCaN) Program office and covers emerging technologies, commercialization efforts, exploration activities, and more.

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NASA Telescopes Spot Surprisingly Mature Cluster in Early Universe

A new discovery captures the cosmic moment when a galaxy cluster – among the largest structures in the universe – started to assemble only about a billion years after the big bang, one or two billion years earlier than previously thought. This result, made using NASA’s Chandra X-ray Observatory and James Webb Space Telescope, will lead astronomers to rethink when and how the largest structures in the universe formed. The findings are described in a paper published [Wednesday] in the journal Nature.

The object, known as JADES-ID1 for its location in the “JWST Advanced Deep Extragalactic Survey” (JADES) has a mass about 20 trillion times that of the Sun. Astronomers classify JADES-ID1 as a “protocluster” because it is currently undergoing an early, violent phase of formation and will one day turn into a galaxy cluster. However, JADES-ID1 is found at a much larger distance – corresponding to a much earlier time in the universe – than astronomers expected for such systems, providing a new mystery of how it could form so quickly.

“This may be the most distant confirmed protocluster ever seen,” said Akos Bogdan of the Center for Astrophysics | Harvard & Smithsonian (CfA) who led the study. “JADES-ID1 is giving us new evidence that the universe was in a huge hurry to grow up.”

Galaxy clusters contain hundreds or even thousands of individual galaxies immersed in enormous pools of superheated gas, along with large amounts of unseen dark matter. Astronomers use galaxy clusters to measure the expansion of the universe and the roles of dark energy and dark matter, among other important cosmic studies.

“It’s very important to actually see when and how galaxy clusters grow,” said co-author Gerrit Schellenberger, also of CfA. “It’s like watching an assembly line make a car, rather than just trying to figure out how a car works by looking at the finished product.”

The Chandra and Webb data reveal that JADES-ID1 contains the two properties that confirm the presence of a protocluster: a large number of galaxies held together by gravity (Webb sees at least 66 potential members) that are also sitting in a huge cloud of hot gas (detected by Chandra). As a galaxy cluster forms, gas falls inward and is heated by shock waves, reaching temperatures of millions of degrees and glowing in X-rays.

What makes JADES-ID1 exceptional is the remarkably early time when it appears in cosmic history. Most models of the universe predict that there likely would not be enough time and a large enough density of galaxies for a protocluster of this size to form only a billion years after the big bang. The previous record holder for a protocluster with X-ray emission is seen much later, about three billion years after the big bang.

“We thought we’d find a protocluster like this two or three billion years after the big bang – not just one billion,” said co-author Qiong Li from the University of Manchester in the UK. “Before, astronomers found surprisingly large galaxies and black holes not long after the big bang, and now we’re finding that clusters of galaxies can also grow rapidly.”

After billions of years JADES-ID1 should evolve from a protocluster into a massive galaxy cluster like those we see much closer to Earth.

To find JADES-ID1, astronomers combined deep observations from both Chandra and Webb. By design, the JADES field overlaps with the Chandra Deep Field South, the site of the deepest X-ray observation ever conducted. This field is thus one of the few in the entire sky where a discovery such as this could be made. In an earlier study, a team of researchers led by Li and Conselice found five other proto-cluster candidates in the JADES field, but only in JADES-ID1 are the galaxies embedded in hot gas. Only JADES-ID1 possesses enough mass for an X-ray signal from hot gas to be expected.

“Discoveries like this are made when two powerful telescopes like Chandra and Webb stare at the same patch of sky at the limit of their observing capabilities,” said co-author Christopher Conselice, also from the University of Manchester. “A challenge for us now is to understand how this protocluster was able to form so quickly.”

NASA’s Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.

To learn more about Chandra, visit:

https://science.nasa.gov/chandra

Read more from NASA’s Chandra X-ray Observatory

Learn more about the Chandra X-ray Observatory and its mission here:

https://www.nasa.gov/chandra

https://chandra.si.edu

Visual Description

This composite image features what may be the most distant protocluster ever found; a region of space where a large number of young galaxies are being held together by gravity and hot gas. The image is presented twice, once with, and once without, annotations.

The image includes scores of glowing dots and specks of light, in white and golden hues, set against the blackness of space. This layer of the composite visual is from a deep infrared imaging project undertaken by the James Webb Space Telescope. The specks range from relatively large oval galaxies with discernible spiral arms, and glowing balls with gleaming diffraction spikes, to minuscule pinpoints of distant light. Several of those pinpoints have been circled in the annotated image, as they are part of the distant protocluster.

Layered onto the center of this image is a neon blue cloud. This cloud represents hot X-ray gas discovered by Chandra in the deepest X-ray observation ever conducted. In the annotated image, a thin white square surrounds the blue cloud. This represents Chandra’s field of observation. The X-rays from the distant protocluster located within this box are included in the composite image.

The protocluster, dubbed JADES-1, has a mass of about 20 trillion suns. It is located some 12.7 billion light-years from Earth, or just a billion years after the big bang. The discovery of a protocluster of this size, at this epoch in the early universe, will lead scientists to re-examine their ideas for how galaxy clusters first appeared in the universe.

News Media Contact

Megan Watzke
Chandra X-ray Center
Cambridge, Mass.
617-496-7998
mwatzke@cfa.harvard.edu

Joel Wallace
Marshall Space Flight Center, Huntsville, Alabama
256-544-0034
joel.w.wallace@nasa.gov

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Lee Mohon

Chandra, Webb Catch Twinkling Lights

Data from Chandra adds red, green, and blue twinkling lights in this Dec. 22, 2025, image of Pismis 24 from NASA’s James Webb Space Telescope. Pismis 24 is a young cluster of stars in the core of the nearby Lobster Nebula, approximately 5,500 light-years from Earth in the constellation Scorpius. Home to a vibrant stellar nursery and one of the closest sites of massive star birth, Pismis 24 provides rare insight into large and massive stars. This region is one of the best places to explore the properties of hot young stars and how they evolve.

Image credit: Credit: X-ray: NASA/CXC/Penn State/G. Garmire; Infrared: NASA, ESA, CSA, and STScI; Image Processing: NASA/CXC/SAO/L. Frattare and NSA/ESA/CSA/STScI/A. Pagan

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Monika Luabeya

NASA Webb Pushes Boundaries of Observable Universe Closer to Big Bang

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NASA Webb Pushes Boundaries of Observable Universe Closer to Big Bang

NASA’s James Webb Space Telescope has topped itself once again, delivering on its promise to push the boundaries of the observable universe closer to cosmic dawn with the confirmation of a bright galaxy that existed 280 million years after the big bang. By now Webb has established that it will eventually surpass virtually every benchmark it sets in these early years, but the newly confirmed galaxy, MoM-z14, holds intriguing clues to the universe’s historical timeline and just how different a place the early universe was than astronomers expected.

“With Webb, we are able to see farther than humans ever have before, and it looks nothing like what we predicted, which is both challenging and exciting,” said Rohan Naidu of the Massachusetts Institute of Technology’s (MIT) Kavli Institute for Astrophysics and Space Research, lead author of a paper on galaxy MoM-z14 published in the Open Journal of Astrophysics. 

Due to the expansion of the universe that is driven by dark energy, discussion of physical distances and “years ago” becomes tricky when looking this far. Using Webb’s NIRSpec (Near-Infrared Spectrograph) instrument, astronomers confirmed that MoM-z14 has a cosmological redshift of 14.44, meaning that its light has been travelling through (expanding) space, being stretched and “shifted” to longer, redder wavelengths, for about 13.5 of the universe’s estimated 13.8 billion years of existence.

“We can estimate the distance of galaxies from images, but it’s really important to follow up and confirm with more detailed spectroscopy so that we know exactly what we are seeing, and when,” said Pascal Oesch of the University of Geneva, co-principal investigator of the survey.

Image: COSMOS Field MoM-z14 Galaxy (NIRCam Image)

Intriguing Features

MoM-z14 is one of a growing group of surprisingly bright galaxies in the early universe – 100 times more than theoretical studies predicted before the launch of Webb, according to the research team.

“There is a growing chasm between theory and observation related to the early universe, which presents compelling questions to be explored going forward,” said Jacob Shen, a postdoctoral researcher at MIT and a member of the research team.

One place researchers and theorists can look for answers is the oldest population of stars in the Milky Way galaxy. A small percentage of these stars have shown high amounts of nitrogen, which is also showing up in some of Webb’s observations of early galaxies, including MoM-z14.

“We can take a page from archeology and look at these ancient stars in our own galaxy like fossils from the early universe, except in astronomy we are lucky enough to have Webb seeing so far that we also have direct information about galaxies during that time. It turns out we are seeing some of the same features, like this unusual nitrogen enrichment,” said Naidu.

With galaxy MoM-z14 existing only 280 million years after the big bang, there was not enough time for generations of stars to produce such high amounts of nitrogen in the way that astronomers would expect. One theory the researchers note is that the dense environment of the early universe resulted in supermassive stars capable of producing more nitrogen than any stars observed in the local universe.

The galaxy MoM-z14 also shows signs of clearing out the thick, primordial hydrogen fog of the early universe in the space around itself. One of the reasons Webb was originally built was to define the timeline for this “clearing” period of cosmic history, which astronomers call reionization. This is when early stars produced light of high enough energy to break through the dense hydrogen gas of the early universe and begin travelling through space, eventually making its way to Webb, and us. Galaxy MoM-z14 provides another clue for mapping out the timeline of reionization, work that was not possible until Webb lifted the veil on this era of the universe.

Legacy of Discovery Continues

Even before Webb’s launch, there were hints that something very unanticipated happened in the early universe, when NASA’s Hubble Space Telescope discovered the bright galaxy GN-z11 400 million years after the big bang. Webb confirmed the galaxy’s distance — at the time the most distant ever. From there Webb has continued to push back farther and farther in space and time, finding more surprisingly bright galaxies like GN-z11.

As Webb continues to uncover more of these unexpectedly luminous galaxies, it’s clear that the first few were not a fluke. Astronomers are eagerly anticipating that NASA’s upcoming Nancy Grace Roman Space Telescope, with its combination of high-resolution infrared imaging and extremely wide field of view, will boost the sample of these bright, compact, chemically enriched early galaxies into the thousands.

“To figure out what is going on in the early universe, we really need more information —more detailed observations with Webb, and more galaxies to see where the common features are, which Roman will be able to provide,” said Yijia Li, a graduate student at the Pennsylvania State University and a member of the research team. “It’s an incredibly exciting time, with Webb revealing the early universe like never before and showing us how much there still is to discover.”

The James Webb Space Telescope is the world’s premier space science observatory. Webb is solving mysteries in our solar system, looking beyond to distant worlds around other stars, and probing the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and CSA (Canadian Space Agency).

To learn more about Webb, visit:

https://science.nasa.gov/webb

Downloads & Related Information

The following sections contain links to download this article’s images and videos in all available resolutions followed by related information links, media contacts, and if available, research paper and Spanish translation links.

Related Images & Videos

COSMOS Field MoM-z14 Galaxy (NIRCam Image)

NASA’s James Webb Space Telescope shows galaxy MoM-z14 as it appeared in the distant past, only 280 million years after the universe began in the big bang.

COSMOS Field MoM-z14 Galaxy (NIRCam Compass Image)

NASA’s James Webb Space Telescope shows galaxy MoM-z14 as it appeared in the distant past, only 280 million years after the universe began in the big bang.

Related Links

Read more: Webb Science: Galaxies Through Time

Explore more: ViewSpace Seeing Farther: Hubble Ultra Deep Field

Video: JADES: GOODS South Fly-Through Visualization

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Explore more: ViewSpace Gathering Light: Hubble Ultra Deep Field

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Snow Buries the U.S. Interior and East

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January 26, 2026

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A potent winter storm left a wide band of snow stretching from the U.S. Southwest to New England in late January 2026. The heavy snow, along with bitterly cold temperatures, sleet, and ice, created treacherous travel conditions, toppled power lines, and caused widespread school closures, according to news reports.

On the afternoon of January 26, the VIIRS (Visible Infrared Imaging Radiometer Suite) on the Suomi NPP satellite observed new snow covering a large swath of the country. The left image is natural color, while the false-color image on the right uses a combination of visible and infrared light (bands M11-I2-I1) to distinguish snow (blue) from clouds (white).

Preliminary National Weather Service data indicate snow accumulations of up to 12 inches (30 centimeters) in parts of Oklahoma between the mornings of January 23 and January 26, with higher accumulation across the Midwest and in New England. Totals of around 20 inches were reported in several Northeast states.

Some locations were digging out from record daily accumulations, including 5.1 inches in St. Louis, Missouri, on January 24, and 11.2 inches in Pittsburgh, Pennsylvania, on January 25. Several inches of snow and sleet also fell in parts of North Texas, a rare occurrence for the area. With temperatures remaining below freezing in many places, the snow and ice may stick around.

NASA’s Disasters Response Coordination System has been activated to support federal partners responding to the winter storm. The team will be posting maps and data products on its open-access mapping portal as new information becomes available.

NASA Earth Observatory images by Lauren Dauphin using VIIRS data from NASA EOSDIS LANCE, GIBS/Worldview, the Suomi National Polar-orbiting Partnership. Story by Lindsey Doermann.

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References & Resources

• CBS News (2026, January 27) Power out for hundreds of thousands, roadways snarled with ice and snow after deadly storm. Accessed January 27, 2026.
• NASA (2026) US Winter Storm January 2026. Accessed January 27, 2026.
• NWS National Operational Hydrologic Remote Sensing Center (2026, January) National Gridded Snowfall Analysis. Accessed January 27, 2026.
• NWS Weather Prediction Center (2026, January 26) Storm Summary Message. Accessed January 27, 2026.
• The Washington Post (2026, January 27) See how much snow fell — and where it broke records. Accessed January 27, 2026.

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