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Cleaning up air pollution could weaken vital AMOC ocean current
Cleaning up air pollution could weaken vital AMOC ocean current
Asking AI to explain your medical results? What doctors want you to know
As more people turn to chatbots for medical guidance, the technology is revealing both its promise and its risks
Preparing Smile for space
Before Smile can begin studying how Earth responds to the streams of particles and bursts of radiation from the Sun, the spacecraft had to complete an extraordinary journey here on Earth.
Follow the mission through its final launch preparations at Europe’s Spaceport in French Guiana, from fuelling and encapsulation inside its protective fairing, to meeting the rest of the Vega-C rocket that will take it to space.
Smile is flying to space on Vega-C flight VV29. At 35 m tall, Vega-C weighs 210 tonnes on the launch pad and the rocket will take Smile to orbit with three solid-propellant-powered stages before the fourth liquid-propellant stage takes over for a precise drop-off around Earth.
Smile (the Solar wind Magnetosphere Ionosphere Link Explorer) is a joint European-Chinese mission to study the interaction between the solar wind and Earth’s magnetic environment from a unique highly elliptical orbit. During the next three years, it will go high above the North Pole every two days to collect X-ray and ultraviolet images of Earth’s magnetic shield and the northern lights.
Week in images: 11-15 May 2026
Week in images: 11-15 May 2026
Discover our week through the lens
Sky Show: Watch the Moon Dance With the Planets at Dusk Next Week
The Moon has a busy week ahead of it. If skies are clear, be sure to get outside on the evenings of May 18th/19th and surrounding nights to check out the evolving view to the west, in one of the best sky shows for 2026.
Hubble Sights Galaxy in Transition
- Hubble Home
- Overview
- Impact & Benefits
- Science
- Observatory
- Team
- Multimedia
- News
- More
3 min read
Hubble Sights Galaxy in Transition This NASA Hubble Space Telescope images reveals the lenticular galaxy, NGC 1266. This enigmatic post-starburst galaxy has a bright center and a face that hints at spiral structure, yet it holds no discernable spiral arms. NASA, ESA, K. Alatalo (STScI); Image Processing: G. Kober (NASA/Catholic University of America)This NASA Hubble Space Telescope image reveals an enigmatic galaxy with a bright center and a face that hints at spiral structure, yet it holds no obvious spiral arms. Reddish-brown clumps and filaments of dust partially obscure the galaxy’s full face, while red, blue, and orange light from distant galaxies shines through its diffuse outer regions and dots the inky-black background.
NGC 1266 is a lenticular galaxy located some 100 million light-years away in the constellation Eridanus (the Celestial River). Astronomers classify lenticulars as transitional galaxies that represent an evolutionary bridge between spirals and ellipticals. Lenticulars are “lens-shaped” and have a bright central bulge and flattened disk like spirals, but they have no spiral arms and little to no star formation like ellipticals.
As interesting as this galaxy’s structure and lenticular classification are, those traits aren’t its most intriguing features. NGC 1266 is a rare post-starburst galaxy that is in transition between a galaxy that experienced a major burst of star formation and a quieter elliptical galaxy. Post-starburst galaxies have a young population of stars but few star-forming regions. Roughly one percent of the local galaxy population is a post-starburst galaxy.
Astronomers think that NGC 1266 had a minor merger with another galaxy some 500 million years ago. The merger spurred the formation of new stars and increased the mass of the galaxy’s central bulge while funneling gas into its supermassive black hole. The additional matter made the black hole much more active, creating an active galactic nucleus or AGN. The black hole’s increased activity would have generated powerful winds and jets of gas along its axis of rotation. Over time, the burst of new stars and the black hole’s powerful jets would deplete the galaxy’s reservoir of star-forming gas, while the turbulence generated in these processes suppressed new stars from forming in the gas that remained.
Observations by Hubble and other observatories reveal a strong outflow of gas from the galaxy and that the space between its stars is shocked or highly disturbed. Researchers found that any remaining stellar nurseries are in the core of the galaxy, and that very little to no star formation happens beyond that core. These observations suggest the supermassive black hole in the galaxy’s heart may be suppressing star birth by stripping or ejecting star-forming gas from the galaxy. The shockwaves from this process would create turbulence that disturbs the gas and dust between stars enough to stop any remaining matter from gravitationally condensing into infant stars.
Post-starburst galaxies like NGC 1266 are ideal subjects for astronomers to study the complex physical processes that suppress star formation. They help us better understand the evolution of galaxies and how supermassive black holes interact with their hosts.
Facebook logo @NASAHubble @NASAHubble Instagram logo @NASAHubbleMedia 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’s Galaxies
Hubble Science
Universe Uncovered
Hubble Sights Galaxy in Transition
- Hubble Home
- Overview
- Impact & Benefits
- Science
- Observatory
- Team
- Multimedia
- News
- More
3 min read
Hubble Sights Galaxy in Transition This NASA Hubble Space Telescope images reveals the lenticular galaxy, NGC 1266. This enigmatic post-starburst galaxy has a bright center and a face that hints at spiral structure, yet it holds no discernable spiral arms. NASA, ESA, K. Alatalo (STScI); Image Processing: G. Kober (NASA/Catholic University of America)This NASA Hubble Space Telescope image reveals an enigmatic galaxy with a bright center and a face that hints at spiral structure, yet it holds no obvious spiral arms. Reddish-brown clumps and filaments of dust partially obscure the galaxy’s full face, while red, blue, and orange light from distant galaxies shines through its diffuse outer regions and dots the inky-black background.
NGC 1266 is a lenticular galaxy located some 100 million light-years away in the constellation Eridanus (the Celestial River). Astronomers classify lenticulars as transitional galaxies that represent an evolutionary bridge between spirals and ellipticals. Lenticulars are “lens-shaped” and have a bright central bulge and flattened disk like spirals, but they have no spiral arms and little to no star formation like ellipticals.
As interesting as this galaxy’s structure and lenticular classification are, those traits aren’t its most intriguing features. NGC 1266 is a rare post-starburst galaxy that is in transition between a galaxy that experienced a major burst of star formation and a quieter elliptical galaxy. Post-starburst galaxies have a young population of stars but few star-forming regions. Roughly one percent of the local galaxy population is a post-starburst galaxy.
Astronomers think that NGC 1266 had a minor merger with another galaxy some 500 million years ago. The merger spurred the formation of new stars and increased the mass of the galaxy’s central bulge while funneling gas into its supermassive black hole. The additional matter made the black hole much more active, creating an active galactic nucleus or AGN. The black hole’s increased activity would have generated powerful winds and jets of gas along its axis of rotation. Over time, the burst of new stars and the black hole’s powerful jets would deplete the galaxy’s reservoir of star-forming gas, while the turbulence generated in these processes suppressed new stars from forming in the gas that remained.
Observations by Hubble and other observatories reveal a strong outflow of gas from the galaxy and that the space between its stars is shocked or highly disturbed. Researchers found that any remaining stellar nurseries are in the core of the galaxy, and that very little to no star formation happens beyond that core. These observations suggest the supermassive black hole in the galaxy’s heart may be suppressing star birth by stripping or ejecting star-forming gas from the galaxy. The shockwaves from this process would create turbulence that disturbs the gas and dust between stars enough to stop any remaining matter from gravitationally condensing into infant stars.
Post-starburst galaxies like NGC 1266 are ideal subjects for astronomers to study the complex physical processes that suppress star formation. They help us better understand the evolution of galaxies and how supermassive black holes interact with their hosts.
Facebook logo @NASAHubble @NASAHubble Instagram logo @NASAHubbleMedia 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’s Galaxies
Hubble Science
Universe Uncovered
Microbe ‘cities’ may solve a key ocean mystery
Some of Earth’s tiniest life-forms inhabit slowly sinking particles of fish poop and debris, playing a crucial role in ocean carbon storage
Are astronomers ignoring some of the cosmos?
There are parts of the universe, and of the electromagnetic spectrum, that we’re not covering with our telescopes—but not as many as you might think!
CAR T-cell therapy bolstered by stiffening up cancer cells first
CAR T-cell therapy bolstered by stiffening up cancer cells first
Why Black women are at greater risk for fibroids and endometrial cancer
A new book argues that disparities in fibroids, cancer and diagnosis reveal a lifelong gynecologic health crisis for Black women
To celebrate Endangered Species Day, meet the scaly-foot snail, the most metal animal in the world
This snail became the first animal living on deep-sea hydrothermal vents to be added to the IUCN Red List of Threatened Species—it also turns poisonous sulfur into armor
Where do you think your ‘self’ is? Your answer is revealing
Where do you think your ‘self’ is? Your answer is revealing
This Week's Sky at a Glance, May 15 – 24
The Moon, Venus, and Jupiter — the three brightest celestial objects after the Sun — will form up beautifully in twilight this Monday, Tuesday, and Wednesday.
The post This Week's Sky at a Glance, May 15 – 24 appeared first on Sky & Telescope.
Earth from Space: Quito’s volcanic landscape
Dark Matter May Have Left Its Fingerprint in a Gravitational Wave.
Dark matter makes up roughly 85 percent of all the matter in the universe. We have never directly detected a single particle of it. But a new method developed by physicists at MIT and across Europe may have just opened a door we didn't know existed. When two black holes collide and merge, they send ripples through the fabric of spacetime, these are known as gravitational waves and if those black holes happened to spiral through a dense cloud of dark matter on their way in, those waves carry an imprint of it. For the first time, scientists have a technique to read that imprint and one signal in the existing data is already raising eyebrows.