Gas

Lion Nebula Roars in Webb’s Sights – NASA’s James Webb Space Telescope imaged the planetary nebula NGC 2392, the Lion Nebula, using the observatory’s NIRCam and MIRI instruments. The central star’s remains are responsible for the nebula’s structure, including a lion face-shaped bubble of ionized gas and dust “mane.”
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Lion Nebula Roars in Webb’s Sights – NASA’s James Webb Space Telescope imaged the planetary nebula NGC 2392, the Lion Nebula, using the observatory’s NIRCam and MIRI instruments. The central star’s remains are responsible for the nebula’s structure, including a lion face-shaped bubble of ionized gas and dust “mane.”

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NASA’s James Webb Space Telescope imaged the planetary nebula NGC 2392, the Lion Nebula, using the observatory’s NIRCam and MIRI instruments. The central star’s remains are responsible for the nebula’s structure, including a lion face-shaped bubble of ionized gas and dust “mane.”

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Archbishop Hicks resumes public ministry after eye surgery #Catholic Archbishop Ronald Hicks of New York celebrated his first public Mass since undergoing eye surgery in July.Hicks returned to St. Patrickʼs Cathedral to serve as the principal celebrant at the profession of vows of the Sisters of Life on Aug. 6, the feast of the Transfiguration. The day also marked the six-month anniversary of his installation as archbishop of New York.After only being able to celebrate Mass privately following surgery, “it was a great joy to be back at the main altar and to share that beautiful occasion with the Sisters of Life, their families, and friends,” Hicks wrote in a statement.After returning from a pilgrimage to Rome in the beginning of July, Hicks was diagnosed with a detached retina in his left eye. He underwent surgery involving “a vitrectomy, two sutures to reattach the retina, and the insertion of a gas bubble,” to aid the healing process.The surgery was successful, but the archbishop has been in a quiet recovery period since, he said. “Thanks be to God, my eye and vision continue to heal from the surgery. I am deeply grateful for the excellent medical care I have received,” Hicks said. “Following doctors' orders, I have been taking things slowly during my recovery. As many of you know, that is not always easy for me.” While the gas bubble is in his eye, Hicks shared he is unable to travel by airplane but will “gradually and carefully” add public Masses and other responsibilities to his schedule.“I look forward to being with you more frequently in the weeks ahead,” he said.“This period of recovery has also been a gift. It has provided more time than usual to sit quietly before the Lord in prayer. In the stillness, I have been reminded once again how much we all depend on Godʼs grace each day,” he wrote.“During these weeks, I have also been praying for you and your intentions, and will continue to do so,” he said. “Please, also, continue to pray for me. Your prayers are the greatest gift you can offer me at this time, and I am deeply grateful for each one.”“May the Lord Jesus, who healed the sick, restored sight to the blind, and brought hope to those in need, bless you with light, peace, and love,” he concluded.
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Archbishop Hicks resumes public ministry after eye surgery #Catholic Archbishop Ronald Hicks of New York celebrated his first public Mass since undergoing eye surgery in July.Hicks returned to St. Patrickʼs Cathedral to serve as the principal celebrant at the profession of vows of the Sisters of Life on Aug. 6, the feast of the Transfiguration. The day also marked the six-month anniversary of his installation as archbishop of New York.After only being able to celebrate Mass privately following surgery, “it was a great joy to be back at the main altar and to share that beautiful occasion with the Sisters of Life, their families, and friends,” Hicks wrote in a statement.After returning from a pilgrimage to Rome in the beginning of July, Hicks was diagnosed with a detached retina in his left eye. He underwent surgery involving “a vitrectomy, two sutures to reattach the retina, and the insertion of a gas bubble,” to aid the healing process.The surgery was successful, but the archbishop has been in a quiet recovery period since, he said. “Thanks be to God, my eye and vision continue to heal from the surgery. I am deeply grateful for the excellent medical care I have received,” Hicks said. “Following doctors' orders, I have been taking things slowly during my recovery. As many of you know, that is not always easy for me.” While the gas bubble is in his eye, Hicks shared he is unable to travel by airplane but will “gradually and carefully” add public Masses and other responsibilities to his schedule.“I look forward to being with you more frequently in the weeks ahead,” he said.“This period of recovery has also been a gift. It has provided more time than usual to sit quietly before the Lord in prayer. In the stillness, I have been reminded once again how much we all depend on Godʼs grace each day,” he wrote.“During these weeks, I have also been praying for you and your intentions, and will continue to do so,” he said. “Please, also, continue to pray for me. Your prayers are the greatest gift you can offer me at this time, and I am deeply grateful for each one.”“May the Lord Jesus, who healed the sick, restored sight to the blind, and brought hope to those in need, bless you with light, peace, and love,” he concluded.

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The New York archbishop returned to St. Patrick’s Cathedral to celebrate Mass for the profession of vows of the Sisters of Life.

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Telescopes Team Up for New View of Cat’s Eye Nebula – In Euclid’s wide, near-infrared, and visible light view, the arcs and filaments of the nebula’s bright central region are situated within a halo of colorful fragments of gas zooming away from the star. This ring was ejected from the star at an earlier stage, before the main nebula at the center formed. Hubble captures the very core of the billowing gas with high-resolution visible-light images, adding extra detail in the center of this image. The whole nebula stands out against a backdrop teeming with distant galaxies, demonstrating how local astrophysical beauty and the farthest reaches of the cosmos can be seen together in modern astronomical surveys. Together, these missions provide a rich and complementary view of NGC 6543 — revealing the delicate interplay between stellar end-of-life processes and the vast cosmic tapestry beyond.
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Telescopes Team Up for New View of Cat’s Eye Nebula – In Euclid’s wide, near-infrared, and visible light view, the arcs and filaments of the nebula’s bright central region are situated within a halo of colorful fragments of gas zooming away from the star. This ring was ejected from the star at an earlier stage, before the main nebula at the center formed. Hubble captures the very core of the billowing gas with high-resolution visible-light images, adding extra detail in the center of this image. The whole nebula stands out against a backdrop teeming with distant galaxies, demonstrating how local astrophysical beauty and the farthest reaches of the cosmos can be seen together in modern astronomical surveys. Together, these missions provide a rich and complementary view of NGC 6543 — revealing the delicate interplay between stellar end-of-life processes and the vast cosmic tapestry beyond.

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In Euclid’s wide, near-infrared, and visible light view, the arcs and filaments of the nebula’s bright central region are situated within a halo of colorful fragments of gas zooming away from the star. This ring was ejected from the star at an earlier stage, before the main nebula at the center formed. Hubble captures the very core of the billowing gas with high-resolution visible-light images, adding extra detail in the center of this image. The whole nebula stands out against a backdrop teeming with distant galaxies, demonstrating how local astrophysical beauty and the farthest reaches of the cosmos can be seen together in modern astronomical surveys. Together, these missions provide a rich and complementary view of NGC 6543 — revealing the delicate interplay between stellar end-of-life processes and the vast cosmic tapestry beyond.

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Webb Studies Cranium Nebula – A brain-new image from Webb! What looks like a brain (complete with what appear as left and right hemispheres) is actually a dying star blowing off a shell of gas, and within that shell, a cloud of various gases.
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Webb Studies Cranium Nebula – A brain-new image from Webb! What looks like a brain (complete with what appear as left and right hemispheres) is actually a dying star blowing off a shell of gas, and within that shell, a cloud of various gases.

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A brain-new image from Webb! What looks like a brain (complete with what appear as left and right hemispheres) is actually a dying star blowing off a shell of gas, and within that shell, a cloud of various gases.

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Shimmering Light in Egg Nebula – NASA’s Hubble Space Telescope reveals the clearest view yet of the Egg Nebula. This structure of gas and dust was created by a dying, Sun-like star. These newest observations were taken with Hubble’s Wide Field Camera 3.
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Shimmering Light in Egg Nebula – NASA’s Hubble Space Telescope reveals the clearest view yet of the Egg Nebula. This structure of gas and dust was created by a dying, Sun-like star. These newest observations were taken with Hubble’s Wide Field Camera 3.

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NASA’s Hubble Space Telescope reveals the clearest view yet of the Egg Nebula. This structure of gas and dust was created by a dying, Sun-like star. These newest observations were taken with Hubble’s Wide Field Camera 3.

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Hubble Spots Lens-Shaped Galaxy – This NASA/ESA Hubble Space Telescope image of NGC 7722, a lenticular galaxy located about 187 million light-years away, features concentric rings of dust and gas that appear to swirl around its bright nucleus.
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Hubble Spots Lens-Shaped Galaxy – This NASA/ESA Hubble Space Telescope image of NGC 7722, a lenticular galaxy located about 187 million light-years away, features concentric rings of dust and gas that appear to swirl around its bright nucleus.

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This NASA/ESA Hubble Space Telescope image of NGC 7722, a lenticular galaxy located about 187 million light-years away, features concentric rings of dust and gas that appear to swirl around its bright nucleus.

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Picture of the day “Selection” of Hungarian Jews on the ramp at Auschwitz-II-Birkenau in German-occupied Poland, May/June 1944, during the final phase of the Holocaust. Jews were sent either to forced labor or the gas chambers. 81 years ago today, on January 27, 1945, Auschwitz was liberated by the Red Army. Today is also International Holocaust Remembrance Day. #ImageOfTheDay
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Picture of the day “Selection” of Hungarian Jews on the ramp at Auschwitz-II-Birkenau in German-occupied Poland, May/June 1944, during the final phase of the Holocaust. Jews were sent either to forced labor or the gas chambers. 81 years ago today, on January 27, 1945, Auschwitz was liberated by the Red Army. Today is also International Holocaust Remembrance Day. #ImageOfTheDay

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Picture of the day
“Selection” of Hungarian Jews on the ramp at Auschwitz-II-Birkenau in German-occupied Poland, May/June 1944, during the final phase of the Holocaust. Jews were sent either to forced labor or the gas chambers. 81 years ago today, on January 27, 1945, Auschwitz was liberated by the Red Army. Today is also International Holocaust Remembrance Day.
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Webb Zooms into Helix Nebula – A new image from NASA’s James Webb Space Telescope of a portion of the Helix Nebula highlights comet-like knots, fierce stellar winds, and layers of gas shed off by a dying star interacting with its surrounding environment. Webb’s image also shows the stark transition between the hottest gas to the coolest gas as the shell expands out from the central white dwarf.
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Webb Zooms into Helix Nebula – A new image from NASA’s James Webb Space Telescope of a portion of the Helix Nebula highlights comet-like knots, fierce stellar winds, and layers of gas shed off by a dying star interacting with its surrounding environment. Webb’s image also shows the stark transition between the hottest gas to the coolest gas as the shell expands out from the central white dwarf.

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A new image from NASA’s James Webb Space Telescope of a portion of the Helix Nebula highlights comet-like knots, fierce stellar winds, and layers of gas shed off by a dying star interacting with its surrounding environment. Webb’s image also shows the stark transition between the hottest gas to the coolest gas as the shell expands out from the central white dwarf.

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NASA’s James Webb Space Telescope Finds Crystal-Spewing Protostar – NASA’s James Webb Space Telescope’s 2024 NIRCam image shows protostar EC 53 circled. Researchers using new data from Webb’s MIRI proved that crystalline silicates form in the hottest part of the disk of gas and dust surrounding the star — and may be shot to the system’s edges.
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NASA’s James Webb Space Telescope Finds Crystal-Spewing Protostar – NASA’s James Webb Space Telescope’s 2024 NIRCam image shows protostar EC 53 circled. Researchers using new data from Webb’s MIRI proved that crystalline silicates form in the hottest part of the disk of gas and dust surrounding the star — and may be shot to the system’s edges.

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NASA’s James Webb Space Telescope’s 2024 NIRCam image shows protostar EC 53 circled. Researchers using new data from Webb’s MIRI proved that crystalline silicates form in the hottest part of the disk of gas and dust surrounding the star — and may be shot to the system’s edges.

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First Sky Map from NASA’s SPHEREx Observatory – NASA’s SPHEREx Observatory has mapped the entire sky in 102 infrared colors, as seen here in this image released on Dec. 18, 2025. This image features a selection of colors emitted primarily by stars (blue, green, and white), hot hydrogen gas (blue), and cosmic dust (red).
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First Sky Map from NASA’s SPHEREx Observatory – NASA’s SPHEREx Observatory has mapped the entire sky in 102 infrared colors, as seen here in this image released on Dec. 18, 2025. This image features a selection of colors emitted primarily by stars (blue, green, and white), hot hydrogen gas (blue), and cosmic dust (red).

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NASA’s SPHEREx Observatory has mapped the entire sky in 102 infrared colors, as seen here in this image released on Dec. 18, 2025. This image features a selection of colors emitted primarily by stars (blue, green, and white), hot hydrogen gas (blue), and cosmic dust (red).

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The Calabash clash – The Calabash Nebula, pictured here — which has the technical name OH 231.8+04.2 — is a spectacular example of the death of a low-mass star like the Sun. This image taken by the NASA/ESA Hubble Space Telescope shows the star going through a rapid transformation from a red giant to a planetary nebula, during which it blows its outer layers of gas and dust out into the surrounding space. The recently ejected material is spat out in opposite directions with immense speed — the gas shown in yellow is moving close to a million kilometres an hour. Astronomers rarely capture a star in this phase of its evolution because it occurs within the blink of an eye — in astronomical terms. Over the next thousand years the nebula is expected to evolve into a fully fledged planetary nebula. The nebula is also known as the Rotten Egg Nebula because it contains a lot of sulphur, an element that, when combined with other elements, smells like a rotten egg — but luckily, it resides over 5000 light-years away in the constellation of Puppis (The Poop deck).
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The Calabash clash – The Calabash Nebula, pictured here — which has the technical name OH 231.8+04.2 — is a spectacular example of the death of a low-mass star like the Sun. This image taken by the NASA/ESA Hubble Space Telescope shows the star going through a rapid transformation from a red giant to a planetary nebula, during which it blows its outer layers of gas and dust out into the surrounding space. The recently ejected material is spat out in opposite directions with immense speed — the gas shown in yellow is moving close to a million kilometres an hour. Astronomers rarely capture a star in this phase of its evolution because it occurs within the blink of an eye — in astronomical terms. Over the next thousand years the nebula is expected to evolve into a fully fledged planetary nebula. The nebula is also known as the Rotten Egg Nebula because it contains a lot of sulphur, an element that, when combined with other elements, smells like a rotten egg — but luckily, it resides over 5000 light-years away in the constellation of Puppis (The Poop deck).

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The Calabash Nebula, pictured here — which has the technical name OH 231.8+04.2 — is a spectacular example of the death of a low-mass star like the Sun. This image taken by the NASA/ESA Hubble Space Telescope shows the star going through a rapid transformation from a red giant to a planetary nebula, during which it blows its outer layers of gas and dust out into the surrounding space. The recently ejected material is spat out in opposite directions with immense speed — the gas shown in yellow is moving close to a million kilometres an hour. Astronomers rarely capture a star in this phase of its evolution because it occurs within the blink of an eye — in astronomical terms. Over the next thousand years the nebula is expected to evolve into a fully fledged planetary nebula. The nebula is also known as the Rotten Egg Nebula because it contains a lot of sulphur, an element that, when combined with other elements, smells like a rotten egg — but luckily, it resides over 5000 light-years away in the constellation of Puppis (The Poop deck).

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Picture of the day A close-in image of a protoplanetary disc HH 30 around a newly formed star produced by NASA/ESA/CSA James Webb Space Telescope. It is surrounded by jets and a disc wind, and is located in the dark cloud LDN 1551 in the Taurus Molecular Cloud. Herbig-Haro objects are small nebulae found in star formation regions, marking the locations where gas outflowing from young stars is heated into luminescence by shockwaves. HH 30 is an example of where this outflowing gas takes the form of a narrow jet. The source star is located on one end of the jet, hidden behind an edge-on protoplanetary disc that the star is illuminating. #ImageOfTheDay
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Picture of the day A close-in image of a protoplanetary disc HH 30 around a newly formed star produced by NASA/ESA/CSA James Webb Space Telescope. It is surrounded by jets and a disc wind, and is located in the dark cloud LDN 1551 in the Taurus Molecular Cloud. Herbig-Haro objects are small nebulae found in star formation regions, marking the locations where gas outflowing from young stars is heated into luminescence by shockwaves. HH 30 is an example of where this outflowing gas takes the form of a narrow jet. The source star is located on one end of the jet, hidden behind an edge-on protoplanetary disc that the star is illuminating. #ImageOfTheDay

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Picture of the day
A close-in image of a protoplanetary disc HH 30 around a newly formed star produced by NASA/ESA/CSA James Webb Space Telescope. It is surrounded by jets and a disc wind, and is located in the dark cloud LDN 1551 in the Taurus Molecular Cloud. Herbig-Haro objects are small nebulae found in star formation regions, marking the locations where gas outflowing from young stars is heated into luminescence by shockwaves. HH 30 is an example of where this outflowing gas takes the form of a narrow jet. The source star is located on one end of the jet, hidden behind an edge-on protoplanetary disc that the star is illuminating.
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