Using this effect, researchers have identified a galaxy nicknamed Misty Moons, which existed in the early universe when it was less than 500 million years old. The galaxy is located at a redshift of roughly 11 to 12 and its light has been magnified by the gravity of a foreground galaxy cluster. This allowed scientists to reconstruct the internal structure of Misty Moons.

The James Webb Space Telescope (JWST) has been instrumental in finding galaxies from the early universe, with some dating back just a few hundred million years. Some of these galaxies appear unusually bright and have high levels of nitrogen, yet they are surprisingly small. Astronomers believe that the brightness of these galaxies may hold important clues about globular clusters and star formation patterns.

Researchers think that the brightness of these early galaxies could be related to the presence of globular clusters, which are dense collections of stars that form around supermassive black holes at the centers of galaxies. Understanding how these clusters formed and evolved in the early universe can provide valuable insights into the history of galaxy evolution.

The discovery of Misty Moons is a significant find, providing astronomers with a unique glimpse of the early universe when it was still in its formative stages. The galaxy's internal structure, reconstructed using gravitational lensing, offers scientists a fascinating opportunity to study the formation and evolution of galaxies in the distant past.

The study of early star formation is often hindered by the difficulty in examining individual star clusters in distant galaxies. These ancient galaxies are typically small and far away, making it challenging to resolve their components. However, a natural phenomenon can help astronomers overcome this obstacle - when a massive galaxy cluster acts as a gravitational lens, the distant object appears brighter and magnified.

This allows researchers to pick out individual clumps within the galaxy and examine their properties in greater detail. Given that early galaxies were forming stars at a high rate, it is likely that their star clusters would be extremely dense, containing heavy elements in low abundance. The cluster formation efficiency (CFE) is a measure used by scientists to understand what fraction of a galaxy's newly formed stars end up in bound star clusters.

Researchers have found that the CFE correlates with the star formation rate in galaxies. This means that early galaxies, which were forming stars at a rapid pace, might have had a very high CFE. However, studying individual star clusters within these distant galaxies is no easy task.

A team of astronomers led by Minami Nakane of the University of Tokyo has made a significant discovery in this regard. They identified a strongly magnified and clumpy galaxy in the JWST's NIRCam images of the field of galaxy cluster MACS0257-2325, which were taken in 10 color filters.

The images were complemented by older Hubble images captured with three filters. The galaxy, nicknamed Misty Moons, appeared as two distinct blobs (ID1 and ID2) that belong to the same galaxy. These blobs vanished at shorter wavelengths.

The estimated redshift of around 11-12 places the galaxy at a cosmic time of approximately 370 million to 410 million years after the Big Bang. This remarkable discovery offers scientists a unique opportunity to study early star formation in galaxies and gain insights into their internal structures and evolution.

The researchers used two independent lens models to reconstruct the internal structure of Misty Moons. These models predicted that five images of the galaxy would be visible. However, it was discovered that only three of these images are clearly visible.

One of the most striking features of the observed images is their brightness. The two brightest lensed images appear roughly 20-30 times brighter than they would without magnification. A third potential image has also been identified, although it is not as clear.

To better understand the structure of Misty Moons, the team smoothed and enhanced the images to make small bright spots stand out. This revealed multiple clumps in each of the two main images. Specifically, four clumps were found in ID1 and three in ID2.

Removing the effects of gravitational lensing allowed researchers to compare the structures of the two images. They discovered that the two images share the same underlying structure, suggesting a unified origin for the observed features.

Each of these clumps contains approximately 10 million solar masses of young stars, estimated to be around 40-70 million years old. This age range is consistent with local nuclear star clusters and young massive clusters. In fact, it's even possible that these clumps are proto-globular clusters.

The discovery has significant implications for our understanding of early star formation in galaxies. The data suggests that at least 80% of the galaxy's stellar mass is concentrated within these compact regions. This finding contrasts with observations of local dwarf galaxies, which tend to have more uniform distributions of stars.

Misty Moons' star formation rate is remarkably high, producing stars at a density of 100 to 10,000 times that of local dwarf galaxies.

This intense star formation likely drives the clump-dominated mode observed in Misty Moons. The galaxy's high rate of star birth stands in contrast to some massive local galaxies, which have similarly high rates but fewer stars grouped into clusters.

The central regions of Misty Moons are bright and compact, suggesting that actively feeding supermassive black holes may contribute to the galaxy's light output. If this is the case, some of the observed star formation could actually be due to accretion onto a massive black hole rather than new stars being born.

Despite these similarities with local galaxies, Misty Moons' overall structure and evolution are distinct from those of its local counterparts. The team's findings highlight the complexities and nuances of galaxy formation in the early universe.

The galaxy known as Misty Moons has provided scientists with a unique opportunity to study the early stages of star formation in the universe.

Galaxy formation is a complex process that involves the gravitational collapse of gas and dust within a galaxy's disk, leading to the creation of new stars. The team's research suggests that this process can be influenced by various factors, including the presence of dark matter and the distribution of gas within the galaxy.

Phys.org: https://phys.org/news/2026-11-galaxy-nicknamed-misty-moons-glimpse.html

Researchers are sounding the alarm, warning that if NASA fails to intervene, the ageing instrument could burn up in 2032, leaving a significant gap in scientific capabilities. The telescope has been a vital tool for astronomers since its launch in 1990, despite an initial setback due to a design flaw in one of its mirrors.

Despite this early hiccup, Hubble has gone on to yield an astonishing number of scientific breakthroughs, with more than 23,000 peer-reviewed papers published using data from the telescope. This is a testament to its enduring value and importance for advancing our understanding of the universe.

The problem facing NASA is that Hubble requires regular servicing and orbit adjustments to maintain its altitude, as atmospheric drag causes it to lose height gradually over time. The telescope relies on gyroscopes to adjust its position in space but lacks propulsion capabilities of its own.

As NASA weighs its options for dealing with the Hubble Space Telescope's impending descent towards Earth, it has become clear that a rescue mission is unlikely to be undertaken by the space agency itself.

This is due in part to the retirement of the shuttle fleet, which was the primary means by which the telescope was originally deployed and could potentially be used to salvage it now. Without this capability, NASA's options are limited.

Meanwhile, the space agency has issued a call for proposals from commercial companies to devise a plan for either raising Hubble's orbit or safely de-orbiting the telescope and allowing it to crash into the ocean.

The deadline for submitting these plans is 30 November, and companies will need to demonstrate that their proposed solution can raise the orbit of the telescope to at least 600 kilometres.

The space agency has estimated that there is a 10 per cent probability that Hubble will re-enter Earth's atmosphere by September 2032, with this likelihood increasing to 50 per cent by December 2033.

NASA is actively seeking innovative solutions to prolong the lifespan of the Hubble Space Telescope, which is expected to re-enter Earth's atmosphere in the near future. The space agency has announced that it is open to ideas from within and outside its organization, with a call for proposals that outline a comprehensive plan for saving the iconic telescope.

According to NASA officials, any private company interested in taking on the mission would need to provide all necessary resources, including a launch vehicle, spacecraft, and crew. This requirement underscores the significant undertaking involved in rescuing Hubble from its impending doom. Despite issuing a similar call for ideas two years ago, which yielded eight submissions but no concrete plans, NASA remains committed to exploring alternative solutions.

A panel of scientists, led by Thomas Haworth at Queen Mary University of London, is advising NASA on the best course of action. Interestingly, their discussions have revealed that re-boosting Hubble's orbit is a more pressing concern than maximizing scientific output before its eventual demise.

The possibility of saving the Hubble Space Telescope from its impending demise has sparked debate among experts. According to NASA officials, a recommendation on whether to re-boost Hubble's orbit is still being finalized and will likely be submitted soon.

Once this recommendation is made, NASA is expected to make a swift decision on whether to proceed with a boost mission. This planning process alone could take years, making timely action crucial in determining the telescope's fate.

Hubble's unique capabilities have earned it a special place among space observatories. Its ability to capture high-resolution ultraviolet images far surpasses that of other instruments currently available, including the James Webb Space Telescope and the Euclid telescope.

The launch of new telescopes such as the Ultraviolet Explorer in 2030 and the Habitable Worlds Observatory (HWO) in the 2040s could potentially mitigate some of the losses if Hubble is allowed to burn up in 2032. However, cancellation of these projects would have far-reaching consequences for future scientific endeavors.

Launching a mission to physically retrieve the Hubble Space Telescope will be an incredibly challenging task due to its massive size and weight. The telescope stands at 13 meters long and weighs over 12,000 kilograms, making it a formidable object to handle in space.

According to experts, attempting to repair or salvage the Hubble could have significant benefits beyond extending its operational lifespan. It would allow scientists to maintain key skills necessary for future space exploration and exploitation, which is crucial considering the current limitations of space travel.

Researchers like Mark Norris at the University of Lancashire, UK, have already benefited from Hubble's archive of images. Norris was previously funded by the telescope's budget to study ultra-compact dwarf galaxies, and his work built a foundation for his career.

The Hubble Space Telescope's instruments are slowly deteriorating due to exposure to the harsh conditions of space.

Despite being over-engineered and receiving numerous maintenance services, the telescope's components are still degrading, but its longevity is a testament to the thoroughness of these repairs. A final servicing mission ensured that all systems were functioning properly before it was left in orbit.

NASA administrators will have to weigh the costs of keeping Hubble operational against other priorities, including any mission aimed at boosting its orbit and ongoing maintenance support. If saving Hubble makes sense financially, it could be done by cutting funding for other projects, such as LISA, a plan to build a space-based gravitational wave detector.

New Scientist: https://www.newscientist.com/article/2597221-hubble-space-telescope-is-falling-to-earth-should-nasa-save-it/?utm_campaign=RSS|NSNS&utm_content=home&utm_medium=RSS&utm_source=NSNS

The James Webb Space Telescope (JWST) is one of the most advanced telescopes in the world, yet it still faces challenges in distinguishing planet signals from stellar glare. This issue is not unique to JWST and affects even the most sophisticated telescopes.

A team of astronomers has successfully applied a combination of modeling and machine learning techniques to extract a previously hidden giant exoplanet from data collected by JWST. The breakthrough demonstrates the potential for this innovative approach to revolutionize planet hunting.

The technique relies on advanced computational methods, which can pick out faint signals that were previously overwhelmed by stellar glare. This achievement is particularly significant given the limitations of existing coronagraphs, which are designed to block excess light but still struggle to separate signal from noise.

The James Webb Space Telescope's advanced technology has enabled scientists to capture images of distant celestial objects with unprecedented clarity. However, even with its impressive capabilities, the telescope is not immune to minor imperfections that can affect image quality.

These tiny distortions occur due to the telescope's inherent vibrations as it collects light from space. The resulting mismatches in the images can be significant enough to obscure even large exoplanets, making them difficult to detect and study.

To overcome this limitation, a team of researchers developed a digital replica of the JWST, which simulates how light travels through its detectors without the effects of movement-based imperfections. This "digital twin" was created using computational models based on real-world physics and machine learning techniques.

The researchers' approach, known as Physics-based Learning for Imaging Planets (FLIP), relies on the understanding of fundamental physical principles to fine-tune the digital replica. By leveraging this knowledge, the team was able to develop a more accurate model that can effectively separate signal from noise in JWST images.

The team analyzed data from three stars using a new technique called FLIP, including 51 Eridani, which is situated about 97 light-years away from Earth and had already been suspected to host a massive exoplanet.

This giant planet, known as 51 Eridani b, had previously been detected by ground-based telescopes but remained hidden in JWST observations due to the overwhelming glare of light. However, with FLIP's advanced capabilities, 51 Eridani b was successfully extracted from the dataset.

The scientists' innovative approach is expected to facilitate the discovery of more elusive exoplanets, particularly those that resemble the planets found in our own solar system, which are often difficult to spot due to their smaller size and lower reflectivity.

Live Science: https://www.livescience.com/space/scientists-removed-the-glare-from-a-james-webb-telescope-image-and-unmasked-a-hidden-world

The research team, led by Nathan Roth from American University and NASA's Goddard Space Flight Center, used the James Webb Space Telescope to analyze the comet's chemical composition. Their measurements revealed a heavy-to-ordinary hydrogen ratio that is about 13 times higher than in comet 67P/Churyumov-Gerasimenko, which likely originated in our own solar system.

The high concentration of heavy hydrogen, also known as deuterium, indicates that the comet's methane molecules contain this rare isotope. Deuterium has an extra neutron in its nucleus compared to ordinary hydrogen, and it can replace ordinary hydrogen in a molecule of methane. This substitution affects the infrared signature of the molecule, allowing astronomers to distinguish between the two forms.

The presence of heavy hydrogen in 3I/ATLAS's methane signature provides scientists with valuable information about the early chemistry of another planetary system. By studying this comet, researchers can gain insights into the conditions that existed around other stars and in their surrounding environments.

Astronomers will now work to unravel the mystery behind the comet's formation, using the data from the James Webb Space Telescope as a starting point for further investigation.

The James Webb Space Telescope's observations of 3I/ATLAS have provided new insights into the composition of this unusual comet, which originated outside our solar system.

Webb observed 3I/ATLAS at a distance of about 2.4 times that between Earth and the sun, on December 22-23, 2025. The telescope focused on infrared light emanating from the coma, the cloud of gas surrounding the comet's icy nucleus. By isolating and subtracting light from other gases, researchers were able to detect faint signals of deuterium-bearing methane.

The detected D/H ratio in this methane is approximately 3.2%, a value higher than any previously recorded for methane within our solar system. This discovery has significant implications for understanding the origins of comets like 3I/ATLAS.

Comet 67P, another comet with detected deuterium-bearing methane, offers a useful comparison. Its D/H ratio is lower than that found in 3I/ATLAS, providing valuable context for further research into the comet's birthplace. The fact that 3I/ATLAS was born outside our solar system makes its composition even more intriguing.

In extremely cold environments, chemical reactions can favor the incorporation of deuterium into molecules. This process is thought to occur on interstellar dust grains, leading to the formation of deuterium-rich ice that eventually becomes part of a comet. The presence of this deuterium-enriched methane in 3I/ATLAS suggests that it was formed under conditions that allowed for such reactions to take place.

The discovery of deuterium-enriched methane in 3I/ATLAS has provided significant insights into its composition and formation process. A new measurement indicates that the D/H ratio in 3I/ATLAS's methane is approximately three times higher than previously measured in its water, suggesting a possible difference in timing.

The researchers propose that the methane may have formed later than the surrounding chemistry, allowing for more time to concentrate heavy hydrogen. This theory aligns with the notion of 3I/ATLAS originating from a cold cloud or an environment surrounding a forming star with relatively few elements heavier than helium and high rates of cosmic-ray bombardment.

Cosmic rays are believed to play a crucial role in enriching molecules in deuterium, initiating reactions that contribute to the formation of heavy hydrogen. This process is thought to occur in environments where energetic particles interact with ices, leading to the production of deuterated compounds like methane.

The measurement of high D/H ratios in 3I/ATLAS's methane presents a challenge for chemical models attempting to replicate this phenomenon. While some models have reported estimates that fall short of the measured value, direct comparisons are limited due to the scarcity of data on distant star-forming environments.

The comet's composition now serves as a stringent test for these models, requiring them to explain why its methane contains such high levels of heavy hydrogen. As 3I/ATLAS offers a unique opportunity to study the chemistry of distant environments, its findings will have significant implications for our understanding of molecular formation in space.

The analysis revealed that the interstellar object 3I/ATLAS has a higher ratio of deuterium to hydrogen in its methane than expected, suggesting that it formed in an extremely cold environment.

This finding is significant because it indicates that certain chemical processes can occur even at very low temperatures, which could have implications for our understanding of molecular formation in space.

Phys.org: https://phys.org/news/2026-10-heavy-hydrogen-3iatlas-methane-frigid.html

Ground- and space-based telescopes, such as the James Webb Space Telescope, have played a crucial role in this progress. However, directly imaging Earth-like planets orbiting sun-like stars remains an elusive goal due to their faintness compared to their host stars and proximity to them in the sky.

A proposed mission called the Habitable Worlds Observatory (HWO) aims to overcome these challenges and advance our understanding of exoplanet detection. Although still in development, HWO is expected to launch sometime in the 2040s after a decade-long planning phase.

Researchers are now working on new engineering concepts for HWO, which were discussed in a recent study published in June 2026. These ideas have the potential to accelerate the mission's progress and ensure its successful completion well before launch.

The Habitable Worlds Observatory (HWO) mission is being designed with multiple engineering concepts in mind, aimed at balancing scientific goals with practical needs. To achieve this balance, researchers introduced a framework called Exploratory Analytic Cases (EACs), which will guide the architecture design of the HWO telescope.

A key aspect of EACs is to determine the optimal size and type of telescope for the mission. This involves considering factors such as mirror diameter, aperture design, and whether an on-axis or off-axis design is required. The researchers focused on four types of mirrors: inscribed, circumscribed, round, and outer diameter.

The distinction between on-axis and off-axis designs lies in how components are positioned within the telescope. On-axis designs place all components within the field of view of incoming light, potentially obstructing a portion of the view. In contrast, off-axis designs keep all components outside the field of view, resulting in an unobstructed view.

The researchers developed three EACs to explore different design options for HWO's telescope architecture. EAC1 features a 6-m inscribed / 7.2-m circumscribed, off-axis design; EAC2 has a 6-m round, off-axis design; and EAC3 boasts an 8-m outer diameter, on-axis design.

The researchers ultimately favored the off-axis design for HWO's telescope, as it allows for greater light-gathering capabilities and larger aperture sizes to collect more light.

The Habitable Worlds Observatory's (HWO) design considerations continue to take shape as researchers weigh the importance of temperature properties on its telescope operations.

Temperature properties play a crucial role in light-collecting capabilities and overall performance of the coronagraph instrument (CI), which is tasked with blocking out the star's glare to enable direct imaging of orbiting exoplanets.

The Systems Engineering Team has made significant progress, developing end-to-end modeling for one of the Early Assembly Components (EACs) and sharing its models with industry partners to support technology maturation efforts. This collaboration will help inform independent architecture studies and ensure that the HWO's design is well-suited to meet its science goals.

As the HWO is set to replace the James Webb Space Telescope as the primary space telescope in the 2040s, its science objectives remain unchanged, directly imaging Earth-like exoplanets to determine whether our planet is unique in supporting life.

The Habitable Worlds Observatory (HWO) will be equipped with a segmented primary mirror, similar to that of the James Webb Space Telescope. This design choice allows for more precise control over the mirror's shape and minimizes vibrations caused by temperature fluctuations. The segmented design also enables the HWO to maintain its thermal stability during observations.

The mission's primary science objectives remain unchanged, focusing on direct imaging of Earth-like exoplanets to determine whether our planet is unique in terms of its habitability. This will involve analyzing the atmospheric composition and surface conditions of these distant worlds. As a result of this research, scientists hope to gain valuable insights into the formation and evolution of planetary systems similar to our own.

Phys.org: https://phys.org/news/2026-10-nasa-team-habitable-worlds-observatory.html