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NASA’s Hubble Captures Crimson Cloud Sparkling with White, Blue Stars
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3 min read
NASA’s Hubble Captures Crimson Cloud Sparkling with White, Blue Stars A glowing landscape of gas and dust is heated and illuminated by a thriving population of young stars in the LH 95 region of the Large Magellanic Cloud. NASA, ESA, and N. Da Rio (The University of Virginia), G. De Marchi (European Space Agency – ESTEC), and D. Gouliermis (Universitat Heidelberg); Processing: Gladys Kober (NASA/Catholic University of America)Like fresh fireworks launched against a background of dissipating smoke, blue and white stars shine brilliantly against a crimson background of glowing gas in this image of stellar nursery LH 95 from NASA’s Hubble Space Telescope.
LH 95 is a region in the Large Magellanic Cloud, a dwarf galaxy that orbits the Milky Way. Low-mass infant stars live alongside massive blue giant stars in what is known as a stellar association, one of many in the Large Magellanic Cloud.
The LH 95 region’s most massive stars, possessing at least three times the mass of the Sun and visible here as the largest and brightest blue stars, expel ultraviolet radiation and stellar winds that both heat and shape the surrounding hydrogen gas. Dark filaments stand out in sharp contrast against the glowing hydrogen where denser dust lanes resist erosion.
In this image, blue indicates the shorter wavelengths that are visible light, while red depicts the longer wavelengths of visible light, as well as some near-infrared light. Colors in Hubble images are chosen based on standard image processing techniques to best represent the wavelengths of light that pass through the filters used in the observation. The gas of the nebula glows crimson due to hydrogen-alpha emissions.
Hydrogen-alpha is an excellent indicator of star formation, allowing astronomers to identify very young stars embedded in this glowing gas. Researchers found developing stars still gathering material from the disks of gas and dust around them. In fact, LH 95 is home to an extraordinary 2,500 stars that have accumulated almost all of their critical mass but have not yet “turned on” by beginning fusion reactions. These stars, called “pre-main-sequence stars,” have formed from collapsing clouds of gas and are still contracting. They will soon begin burning hydrogen in their cores to become full stars.
By studying these forming stars, researchers confirmed that the stars’ accretion rate ― the rate at which they accumulate matter ― decreased with age, as expected. However, they also learned that accretion can persist for several million years, longer than sometimes assumed. This information helps refine our understanding of how young stars keep growing and how their disks evolve.
Researchers noted that distinct generations of stars in LH 95 exist side-by-side, indicating that rather than forming stars in a single event, the region produces multiple stellar generations over an extended period.
The most massive star in LH 95 (above center, slightly left) has about 60-70 times the mass of the Sun and is about a million years younger than the rest of stars in the system, which appear to be around 4 million years old. Massive stars like these burn through their fuel quickly and die in supernova explosions.
With its rich stellar population, LH 95 is valued by astronomers for providing a way to observe forming stars at relatively close range in an environment with less obscuring dust than similar regions of the Milky Way.
As one of NASA’s flagship observatories, Hubble has produced a wealth of scientific discoveries over more than 30 years in orbit. Its observations are expanded upon and enhanced by observations with other NASA missions, including the infrared-detecting Webb Space Telescope and the upcoming Nancy Grace Roman Space Telescope, which is scheduled to launch in late summer.
Facebook logo @NASAHubble @NASAHubble Instagram logo @NASAHubble Explore MoreHubble’s Nebulae
Exploring the Birth of Stars
Hubble’s Star Clusters
Media Contact:
Claire Andreoli
NASA’s Goddard Space Flight Center, Greenbelt, MD
claire.andreoli@nasa.gov
Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.
Hubble Celebrates Nation’s 250th Birthday
Commemorating the United States’ 250th anniversary with new images and more!
What Did Hubble See on Your Birthday?
Take a look at what cosmic wonders Hubble observed on your special day!
Fourth of July Through Hubble’s Eyes
To commemorate the nation’s 250th birthday, Hubble shares 13 images for the nation’s 13 original colonies.
NASA’s Hubble Captures Crimson Cloud Sparkling with White, Blue Stars
- Hubble Home
- Overview
- Impact & Benefits
- Science
- Observatory
- Team
- Multimedia
- News
- More
3 min read
NASA’s Hubble Captures Crimson Cloud Sparkling with White, Blue Stars A glowing landscape of gas and dust is heated and illuminated by a thriving population of young stars in the LH 95 region of the Large Magellanic Cloud. NASA, ESA, and N. Da Rio (The University of Virginia), G. De Marchi (European Space Agency – ESTEC), and D. Gouliermis (Universitat Heidelberg); Processing: Gladys Kober (NASA/Catholic University of America)Like fresh fireworks launched against a background of dissipating smoke, blue and white stars shine brilliantly against a crimson background of glowing gas in this image of stellar nursery LH 95 from NASA’s Hubble Space Telescope.
LH 95 is a region in the Large Magellanic Cloud, a dwarf galaxy that orbits the Milky Way. Low-mass infant stars live alongside massive blue giant stars in what is known as a stellar association, one of many in the Large Magellanic Cloud.
The LH 95 region’s most massive stars, possessing at least three times the mass of the Sun and visible here as the largest and brightest blue stars, expel ultraviolet radiation and stellar winds that both heat and shape the surrounding hydrogen gas. Dark filaments stand out in sharp contrast against the glowing hydrogen where denser dust lanes resist erosion.
In this image, blue indicates the shorter wavelengths that are visible light, while red depicts the longer wavelengths of visible light, as well as some near-infrared light. Colors in Hubble images are chosen based on standard image processing techniques to best represent the wavelengths of light that pass through the filters used in the observation. The gas of the nebula glows crimson due to hydrogen-alpha emissions.
Hydrogen-alpha is an excellent indicator of star formation, allowing astronomers to identify very young stars embedded in this glowing gas. Researchers found developing stars still gathering material from the disks of gas and dust around them. In fact, LH 95 is home to an extraordinary 2,500 stars that have accumulated almost all of their critical mass but have not yet “turned on” by beginning fusion reactions. These stars, called “pre-main-sequence stars,” have formed from collapsing clouds of gas and are still contracting. They will soon begin burning hydrogen in their cores to become full stars.
By studying these forming stars, researchers confirmed that the stars’ accretion rate ― the rate at which they accumulate matter ― decreased with age, as expected. However, they also learned that accretion can persist for several million years, longer than sometimes assumed. This information helps refine our understanding of how young stars keep growing and how their disks evolve.
Researchers noted that distinct generations of stars in LH 95 exist side-by-side, indicating that rather than forming stars in a single event, the region produces multiple stellar generations over an extended period.
The most massive star in LH 95 (above center, slightly left) has about 60-70 times the mass of the Sun and is about a million years younger than the rest of stars in the system, which appear to be around 4 million years old. Massive stars like these burn through their fuel quickly and die in supernova explosions.
With its rich stellar population, LH 95 is valued by astronomers for providing a way to observe forming stars at relatively close range in an environment with less obscuring dust than similar regions of the Milky Way.
As one of NASA’s flagship observatories, Hubble has produced a wealth of scientific discoveries over more than 30 years in orbit. Its observations are expanded upon and enhanced by observations with other NASA missions, including the infrared-detecting Webb Space Telescope and the upcoming Nancy Grace Roman Space Telescope, which is scheduled to launch in late summer.
Facebook logo @NASAHubble @NASAHubble Instagram logo @NASAHubble Explore MoreHubble’s Nebulae
Exploring the Birth of Stars
Hubble’s Star Clusters
Media Contact:
Claire Andreoli
NASA’s Goddard Space Flight Center, Greenbelt, MD
claire.andreoli@nasa.gov
Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.
Hubble Celebrates Nation’s 250th Birthday
Commemorating the United States’ 250th anniversary with new images and more!
What Did Hubble See on Your Birthday?
Take a look at what cosmic wonders Hubble observed on your special day!
Fourth of July Through Hubble’s Eyes
To commemorate the nation’s 250th birthday, Hubble shares 13 images for the nation’s 13 original colonies.
Astronomers Spot an Extremely Rare Galaxy Mega-Merger
Scale in the universe is hard to understand from a purely human perspective. Many times the math just doesn’t sit well with our brains that evolved to capture and process data about the world around us rather than groking the complexities of stellar dynamics and galaxy mergers. But every once in a while astronomers find something that, if we can wrap our heads around the numbers, gives a sense of just how big the universe is. That is precisely what a new paper, available in preprint on arXiv from a group of astronomers led by Z.L. Wen of the Chinese Academy of Sciences, hopes to do when it describes a merger of not one, not two, but six supermassive galaxies and the active dynamics they’re subject to.
The most spectacular aurora of the εpsilon mission (so far!)
This timelapse was published on social media by ESA astronaut Sophie Adenot with the following caption:
Day 139, orbit 2155 — After the pictures (available in HD on my Flickr account), I'm so happy to finally share the timelapse of the most spectacular aurora of the εpsilon mission so far!
Watching this glowing green ribbon shimmer and dance, it's easy to lose yourself completely in the magic of the moment. Turn the sound on for the full experience – the music was carefully chosen to bring you as close as possible to what I felt watching this from space .
--
Jour 139, orbite 2155 – Après les photos (disponibles en HD sur mon compte Flickr), je suis très heureuse de pouvoir enfin partager avec vous le timelapse de l’aurore la plus spectaculaire (jusqu’à présent !) de la mission εpsilon !
Difficile de ne pas céder à la magie de l’instant en regardant ce ruban de lumière verte onduler et danser sous nos yeux... Activez le son pour vivre pleinement l’expérience : la musique a été choisie avec soin pour évoquer les émotions que j’ai ressenties en admirant ce spectacle depuis l’espace
Audacious mission to rescue NASA's falling telescope has launched
Audacious mission to rescue NASA's falling telescope has launched
Week in images: 29 June - 03 July 2026
Week in images: 29 June - 03 July 2026
Discover our week through the lens
NASA’s Hubble Spots Star-Spangled Cosmic Scene
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3 min read
NASA’s Hubble Spots Star-Spangled Cosmic Scene This image from NASA’s Hubble Space Telescope shows Messier 3, a densely packed cluster of stars whose origins may be a merger between globular clusters in the early universe. NASA, ESA, and A. Sarajedini (Florida Atlantic University); Processing: Gladys Kober (NASA/Catholic University of America)More than 500,000 stars blaze red, white, and blue in this image from NASA’s Hubble Space Telescope, released in celebration of the United States’ 250th anniversary. The image showcases Messier 3 (M3), one of the Milky Way galaxy’s most massive globular clusters, or spherical collections of gravitationally bound stars. Globular clusters are made up of ancient stars that formed at roughly the same time from the same cloud of gas, giving those stars similar ages. Around 150 known globular clusters are sprinkled around the outer regions of the Milky Way.
In addition to its significant mass, M3 is unusual because it lies relatively far from the galactic center and has more than 240 RR Lyrae variable stars, the most of any globular cluster in our galaxy. RR Lyrae variables are some of the galaxy’s oldest stars and are of special interest to astronomers, due to their age and because their light fluctuates over time in a way that tells us their intrinsic brightness. This true brightness can be used to measure distances in the cosmos, just as knowing the brightness of car headlights on a dark road can help estimate the distance to an oncoming vehicle.
The M3 globular cluster also contains around 70 identified “blue straggler” candidates, which are stars that shine with a bright, blue light that makes them look like younger stars than the typical, redder residents of globular clusters. This was the first cluster in which these oddball stars were located. These stars are thought to have gravitationally pulled mass from companion stars, rejuvenating them and making them appear bluer and younger despite their true age.
The unusual characteristics of M3 may arise from its origins. The globular cluster, which contains two distinct populations of stars, may be the result of a merger of two globular clusters. These two clusters were members of the same dwarf galaxy, which was later swallowed up by the Milky Way.
Hubble has taken several images of M3, also known as NGC 5272, documenting its complicated and intriguing characteristics. In this image, blue indicates the shorter wavelengths that are visible light, while red depicts the longer wavelengths of visible light, as well as some near-infrared light. Colors in Hubble images are chosen based on standard image processing techniques to best represent the wavelengths of light that pass through the filters used in the observation. Because the color and temperature of stars are directly related, we know that the blue stars in this image are hotter and the red stars are cooler.
This image is part of a Hubble Treasury program survey designed to observe approximately half of the Milky Way’s globular clusters to construct a detailed chronology of how the Milky Way galaxy formed. With over 30 years of observations, Hubble is one of NASA’s flagship observatories and works in complement with its sibling space missions, including the infrared-detecting Webb Space Telescope and the upcoming Nancy Grace Roman Space Telescope, to weave together a comprehensive picture of our vast universe.
Facebook logo @NASAHubble @NASAHubble Instagram logo @NASAHubble Explore MoreExploring the Birth of Stars
Hubble’s Star Clusters
Hubble’s Nebulae
Media Contact:
Claire Andreoli
NASA’s Goddard Space Flight Center, Greenbelt, MD
claire.andreoli@nasa.gov
Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.
Explore the Night Sky
Break out your telescope or binoculars and compare your view with Hubble’s observations.
What Did Hubble See on Your Birthday?
Take a look at what cosmic wonders Hubble observed on your special day!
Fourth of July Through Hubble’s Eyes
To commemorate the nation’s 250th birthday, Hubble shares 13 images for the nation’s 13 original colonies.
NASA’s Hubble Spots Star-Spangled Cosmic Scene
- Hubble Home
- Overview
- Impact & Benefits
- Science
- Observatory
- Team
- Multimedia
- News
- More
3 min read
NASA’s Hubble Spots Star-Spangled Cosmic Scene This image from NASA’s Hubble Space Telescope shows Messier 3, a densely packed cluster of stars whose origins may be a merger between globular clusters in the early universe. NASA, ESA, and A. Sarajedini (Florida Atlantic University); Processing: Gladys Kober (NASA/Catholic University of America)More than 500,000 stars blaze red, white, and blue in this image from NASA’s Hubble Space Telescope, released in celebration of the United States’ 250th anniversary. The image showcases Messier 3 (M3), one of the Milky Way galaxy’s most massive globular clusters, or spherical collections of gravitationally bound stars. Globular clusters are made up of ancient stars that formed at roughly the same time from the same cloud of gas, giving those stars similar ages. Around 150 known globular clusters are sprinkled around the outer regions of the Milky Way.
In addition to its significant mass, M3 is unusual because it lies relatively far from the galactic center and has more than 240 RR Lyrae variable stars, the most of any globular cluster in our galaxy. RR Lyrae variables are some of the galaxy’s oldest stars and are of special interest to astronomers, due to their age and because their light fluctuates over time in a way that tells us their intrinsic brightness. This true brightness can be used to measure distances in the cosmos, just as knowing the brightness of car headlights on a dark road can help estimate the distance to an oncoming vehicle.
The M3 globular cluster also contains around 70 identified “blue straggler” candidates, which are stars that shine with a bright, blue light that makes them look like younger stars than the typical, redder residents of globular clusters. This was the first cluster in which these oddball stars were located. These stars are thought to have gravitationally pulled mass from companion stars, rejuvenating them and making them appear bluer and younger despite their true age.
The unusual characteristics of M3 may arise from its origins. The globular cluster, which contains two distinct populations of stars, may be the result of a merger of two globular clusters. These two clusters were members of the same dwarf galaxy, which was later swallowed up by the Milky Way.
Hubble has taken several images of M3, also known as NGC 5272, documenting its complicated and intriguing characteristics. In this image, blue indicates the shorter wavelengths that are visible light, while red depicts the longer wavelengths of visible light, as well as some near-infrared light. Colors in Hubble images are chosen based on standard image processing techniques to best represent the wavelengths of light that pass through the filters used in the observation. Because the color and temperature of stars are directly related, we know that the blue stars in this image are hotter and the red stars are cooler.
This image is part of a Hubble Treasury program survey designed to observe approximately half of the Milky Way’s globular clusters to construct a detailed chronology of how the Milky Way galaxy formed. With over 30 years of observations, Hubble is one of NASA’s flagship observatories and works in complement with its sibling space missions, including the infrared-detecting Webb Space Telescope and the upcoming Nancy Grace Roman Space Telescope, to weave together a comprehensive picture of our vast universe.
Facebook logo @NASAHubble @NASAHubble Instagram logo @NASAHubble Explore MoreExploring the Birth of Stars
Hubble’s Star Clusters
Hubble’s Nebulae
Media Contact:
Claire Andreoli
NASA’s Goddard Space Flight Center, Greenbelt, MD
claire.andreoli@nasa.gov
Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.
Explore the Night Sky
Break out your telescope or binoculars and compare your view with Hubble’s observations.
What Did Hubble See on Your Birthday?
Take a look at what cosmic wonders Hubble observed on your special day!
Fourth of July Through Hubble’s Eyes
To commemorate the nation’s 250th birthday, Hubble shares 13 images for the nation’s 13 original colonies.
Orangutan mothers seem to plan playdates for their offspring
Orangutan mothers seem to plan playdates for their offspring
This Week's Sky at a Glance, July 3 – 12
Regulus creeps up to Venus in twilight this week. Vega and Arcturus balance across the zenith. And this being July, Scorpius decorates the south.
The post This Week's Sky at a Glance, July 3 – 12 appeared first on Sky & Telescope.
July 4 heat wave would've been 'virtually impossible' in 1776
People in the U.S. experience more, and more intense, heat waves than the Founding Fathers would have
Archaeologists uncover new history from the Battle of Bunker Hill, the first major battle of the American Revolution
New archaeology has uncovered everything from musket balls to wig curlers at the site of the Battle of Bunker Hill, the first major clash of the American Revolution
Mission Launches to Rescue Swift Observatory
A daring mission will attempt to reach and save a key astrophysics observatory in low Earth orbit.
The post Mission Launches to Rescue Swift Observatory appeared first on Sky & Telescope.
What will happen to the moon in the far future?
The moon is Earth’s constant companion. But will that always be the case?
The biological dogma that women don’t make new eggs after birth may be wrong
Female mammals have long thought to be born with all the eggs they would ever have, but new research is challenging that consensus
The Lincoln Memorial Reflecting Pool’s algae problem has better solutions than hydrogen peroxide, experts say
Trying to kill algae with chemicals is a common response when community ponds or other water features go green, but a freshwater ecologist says there may be safer and more effective solutions