Karl Urban boosted
AstroGeo Podcast
@astro_geo@chaos.social  ·  activity timestamp 6 days ago
InarticulateQuilter
@inarticulatequilter@mastodon.art  ·  activity timestamp 5 days ago
A partially pieced quilt top with Laika, the first female dog in space, next to Valentina Tereshkova, the first woman in space. Both are kind of blocky caricatures, because it is a quilt, but Laika is sitting up, in her blue space vest, with a name tag. Terrshkova is in her white spacesuit with red accents, carrying a white helmet with her name embroidered on the visor and CCCP embroidered above. She has a 60s side bun hairdo, but no facial features, and both are set against a starry navy background
A partially pieced quilt top with Laika, the first female dog in space, next to Valentina Tereshkova, the first woman in space. Both are kind of blocky caricatures, because it is a quilt, but Laika is sitting up, in her blue space vest, with a name tag. Terrshkova is in her white spacesuit with red accents, carrying a white helmet with her name embroidered on the visor and CCCP embroidered above. She has a 60s side bun hairdo, but no facial features, and both are set against a starry navy background
A partially pieced quilt top with Laika, the first female dog in space, next to Valentina Tereshkova, the first woman in space. Both are kind of blocky caricatures, because it is a quilt, but Laika is sitting up, in her blue space vest, with a name tag. Terrshkova is in her white spacesuit with red accents, carrying a white helmet with her name embroidered on the visor and CCCP embroidered above. She has a 60s side bun hairdo, but no facial features, and both are set against a starry navy background
Andrea Luck
@andrealuck@fosstodon.org  ·  activity timestamp 7 days ago
The image is divided into four sections, each showing one of the gas giants against a black background as seen by JWST. Filters are near infrared and have been colorised. Top left: Jupiter. It appears as a large, round sphere with horizontal bands in shades of light brown, tan, and white. A bright white oval storm sits on the lower right side. A faint ring is visible alongside Europa, one of its satellites, which appears very bright with a star-shaped artifact. Top right: Saturn. It has a pale beige surface with soft horizontal shading. Surrounding it is a wide, bright ring system tilted diagonally. The rings look thin and sharply defined, with multiple subtle bands of light and dark. Bottom left: Uranus. It appears as a smooth blue-green sphere with some whitish circular clouds around the pole that is facing the observer. Surrounding it is a bright circular ring system made up of thin white lines. The rings form a bright, symmetrical halo around the planet. Bottom right: Neptune. It is a blue sphere with slightly brighter and darker circular features on its atmosphere. It also has a thin ring system, dimmer and less defined than Uranus’s in this image, appearing as a faint double oval around the planet. Each planet has its name printed below it in white capital letters.
The image is divided into four sections, each showing one of the gas giants against a black background as seen by JWST. Filters are near infrared and have been colorised. Top left: Jupiter. It appears as a large, round sphere with horizontal bands in shades of light brown, tan, and white. A bright white oval storm sits on the lower right side. A faint ring is visible alongside Europa, one of its satellites, which appears very bright with a star-shaped artifact. Top right: Saturn. It has a pale beige surface with soft horizontal shading. Surrounding it is a wide, bright ring system tilted diagonally. The rings look thin and sharply defined, with multiple subtle bands of light and dark. Bottom left: Uranus. It appears as a smooth blue-green sphere with some whitish circular clouds around the pole that is facing the observer. Surrounding it is a bright circular ring system made up of thin white lines. The rings form a bright, symmetrical halo around the planet. Bottom right: Neptune. It is a blue sphere with slightly brighter and darker circular features on its atmosphere. It also has a thin ring system, dimmer and less defined than Uranus’s in this image, appearing as a faint double oval around the planet. Each planet has its name printed below it in white capital letters.
The image is divided into four sections, each showing one of the gas giants against a black background as seen by JWST. Filters are near infrared and have been colorised. Top left: Jupiter. It appears as a large, round sphere with horizontal bands in shades of light brown, tan, and white. A bright white oval storm sits on the lower right side. A faint ring is visible alongside Europa, one of its satellites, which appears very bright with a star-shaped artifact. Top right: Saturn. It has a pale beige surface with soft horizontal shading. Surrounding it is a wide, bright ring system tilted diagonally. The rings look thin and sharply defined, with multiple subtle bands of light and dark. Bottom left: Uranus. It appears as a smooth blue-green sphere with some whitish circular clouds around the pole that is facing the observer. Surrounding it is a bright circular ring system made up of thin white lines. The rings form a bright, symmetrical halo around the planet. Bottom right: Neptune. It is a blue sphere with slightly brighter and darker circular features on its atmosphere. It also has a thin ring system, dimmer and less defined than Uranus’s in this image, appearing as a faint double oval around the planet. Each planet has its name printed below it in white capital letters.
podfeet boosted
ESO
@esoastronomy@mastodon.social  ·  activity timestamp last week
Luke Drury boosted
Meg Schwamb
@megschwamb@mastodon.online  ·  activity timestamp last week
Daniel Pomarède
@pomarede@mastodon.social  ·  activity timestamp last week
GIF
GIF
This movie shows comet SWAN (circled) moving across the sky from Aug. 25 to Oct. 2, 2025. The movie was made by combining images from NASA’s PUNCH (Polarimeter to Unify the Corona and Heliosphere) mission that were not fully processed. Seams between individual images appear as black lines across the view. Bright objects have white spikes extending from them. Fainter stars and cosmic rays flicker in the background. The two bright objects the comet passes between (about halfway through the video) are the planet Mars (top) and the star Spica (bottom).
This movie shows comet SWAN (circled) moving across the sky from Aug. 25 to Oct. 2, 2025. The movie was made by combining images from NASA’s PUNCH (Polarimeter to Unify the Corona and Heliosphere) mission that were not fully processed. Seams between individual images appear as black lines across the view. Bright objects have white spikes extending from them. Fainter stars and cosmic rays flicker in the background. The two bright objects the comet passes between (about halfway through the video) are the planet Mars (top) and the star Spica (bottom).
AstroGeo Podcast
@astro_geo@chaos.social  ·  activity timestamp 6 days ago
Andrea Luck
@andrealuck@fosstodon.org  ·  activity timestamp 7 days ago
The image is divided into four sections, each showing one of the gas giants against a black background as seen by JWST. Filters are near infrared and have been colorised. Top left: Jupiter. It appears as a large, round sphere with horizontal bands in shades of light brown, tan, and white. A bright white oval storm sits on the lower right side. A faint ring is visible alongside Europa, one of its satellites, which appears very bright with a star-shaped artifact. Top right: Saturn. It has a pale beige surface with soft horizontal shading. Surrounding it is a wide, bright ring system tilted diagonally. The rings look thin and sharply defined, with multiple subtle bands of light and dark. Bottom left: Uranus. It appears as a smooth blue-green sphere with some whitish circular clouds around the pole that is facing the observer. Surrounding it is a bright circular ring system made up of thin white lines. The rings form a bright, symmetrical halo around the planet. Bottom right: Neptune. It is a blue sphere with slightly brighter and darker circular features on its atmosphere. It also has a thin ring system, dimmer and less defined than Uranus’s in this image, appearing as a faint double oval around the planet. Each planet has its name printed below it in white capital letters.
The image is divided into four sections, each showing one of the gas giants against a black background as seen by JWST. Filters are near infrared and have been colorised. Top left: Jupiter. It appears as a large, round sphere with horizontal bands in shades of light brown, tan, and white. A bright white oval storm sits on the lower right side. A faint ring is visible alongside Europa, one of its satellites, which appears very bright with a star-shaped artifact. Top right: Saturn. It has a pale beige surface with soft horizontal shading. Surrounding it is a wide, bright ring system tilted diagonally. The rings look thin and sharply defined, with multiple subtle bands of light and dark. Bottom left: Uranus. It appears as a smooth blue-green sphere with some whitish circular clouds around the pole that is facing the observer. Surrounding it is a bright circular ring system made up of thin white lines. The rings form a bright, symmetrical halo around the planet. Bottom right: Neptune. It is a blue sphere with slightly brighter and darker circular features on its atmosphere. It also has a thin ring system, dimmer and less defined than Uranus’s in this image, appearing as a faint double oval around the planet. Each planet has its name printed below it in white capital letters.
The image is divided into four sections, each showing one of the gas giants against a black background as seen by JWST. Filters are near infrared and have been colorised. Top left: Jupiter. It appears as a large, round sphere with horizontal bands in shades of light brown, tan, and white. A bright white oval storm sits on the lower right side. A faint ring is visible alongside Europa, one of its satellites, which appears very bright with a star-shaped artifact. Top right: Saturn. It has a pale beige surface with soft horizontal shading. Surrounding it is a wide, bright ring system tilted diagonally. The rings look thin and sharply defined, with multiple subtle bands of light and dark. Bottom left: Uranus. It appears as a smooth blue-green sphere with some whitish circular clouds around the pole that is facing the observer. Surrounding it is a bright circular ring system made up of thin white lines. The rings form a bright, symmetrical halo around the planet. Bottom right: Neptune. It is a blue sphere with slightly brighter and darker circular features on its atmosphere. It also has a thin ring system, dimmer and less defined than Uranus’s in this image, appearing as a faint double oval around the planet. Each planet has its name printed below it in white capital letters.
ESO
@esoastronomy@mastodon.social  ·  activity timestamp last week
Meg Schwamb
@megschwamb@mastodon.online  ·  activity timestamp last week
Daniel Pomarède
@pomarede@mastodon.social  ·  activity timestamp last week
GIF
GIF
This movie shows comet SWAN (circled) moving across the sky from Aug. 25 to Oct. 2, 2025. The movie was made by combining images from NASA’s PUNCH (Polarimeter to Unify the Corona and Heliosphere) mission that were not fully processed. Seams between individual images appear as black lines across the view. Bright objects have white spikes extending from them. Fainter stars and cosmic rays flicker in the background. The two bright objects the comet passes between (about halfway through the video) are the planet Mars (top) and the star Spica (bottom).
This movie shows comet SWAN (circled) moving across the sky from Aug. 25 to Oct. 2, 2025. The movie was made by combining images from NASA’s PUNCH (Polarimeter to Unify the Corona and Heliosphere) mission that were not fully processed. Seams between individual images appear as black lines across the view. Bright objects have white spikes extending from them. Fainter stars and cosmic rays flicker in the background. The two bright objects the comet passes between (about halfway through the video) are the planet Mars (top) and the star Spica (bottom).
Daniel Pomarède
@pomarede@mastodon.social  ·  activity timestamp 2 weeks ago
As the evening Sun fades from the viewpoint on Cerro Pachón, a green light peeks through. This phenomenon is known as a green flash, or green rim. The green is a result of atmospheric refraction as the Earth’s atmosphere separates white sunlight into its constituent wavelengths. Although a green rim is present at every sunset, there’s a good chance that you’ve never noticed it! It’s too thin to be seen by the naked eye, and only lasts a handful of seconds as the Sun slips past the horizon. Photography and videography are the best ways to capture the rare appearance of this atmospheric effect. While not a natural phenomenon, this image also serendipitously captures a soaring airplane against the fading sunlight. This sunset was captured from Cerro Pachón in the Chilean Andes. Cerro Pachón is home to several telescopes operated by NOIRLab including the SOAR Telescope, a part of the U.S. National Science Foundation (NSF) Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF NOIRLab; Gemini South, one half of the International Gemini Observatory, funded in part by the NSF; and NSF–DOE Vera C. Rubin Observatory, which is jointly funded by the NSF and the U.S. Department of Energy Office of Science (DOE/SC). Petr Horálek, the photographer, is a NOIRLab Audiovisual Ambassador. Credit: NOIRLab/NSF/AURA/P. Horálek (Institute of Physics in Opava)
As the evening Sun fades from the viewpoint on Cerro Pachón, a green light peeks through. This phenomenon is known as a green flash, or green rim. The green is a result of atmospheric refraction as the Earth’s atmosphere separates white sunlight into its constituent wavelengths. Although a green rim is present at every sunset, there’s a good chance that you’ve never noticed it! It’s too thin to be seen by the naked eye, and only lasts a handful of seconds as the Sun slips past the horizon. Photography and videography are the best ways to capture the rare appearance of this atmospheric effect. While not a natural phenomenon, this image also serendipitously captures a soaring airplane against the fading sunlight. This sunset was captured from Cerro Pachón in the Chilean Andes. Cerro Pachón is home to several telescopes operated by NOIRLab including the SOAR Telescope, a part of the U.S. National Science Foundation (NSF) Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF NOIRLab; Gemini South, one half of the International Gemini Observatory, funded in part by the NSF; and NSF–DOE Vera C. Rubin Observatory, which is jointly funded by the NSF and the U.S. Department of Energy Office of Science (DOE/SC). Petr Horálek, the photographer, is a NOIRLab Audiovisual Ambassador. Credit: NOIRLab/NSF/AURA/P. Horálek (Institute of Physics in Opava)
As the evening Sun fades from the viewpoint on Cerro Pachón, a green light peeks through. This phenomenon is known as a green flash, or green rim. The green is a result of atmospheric refraction as the Earth’s atmosphere separates white sunlight into its constituent wavelengths. Although a green rim is present at every sunset, there’s a good chance that you’ve never noticed it! It’s too thin to be seen by the naked eye, and only lasts a handful of seconds as the Sun slips past the horizon. Photography and videography are the best ways to capture the rare appearance of this atmospheric effect. While not a natural phenomenon, this image also serendipitously captures a soaring airplane against the fading sunlight. This sunset was captured from Cerro Pachón in the Chilean Andes. Cerro Pachón is home to several telescopes operated by NOIRLab including the SOAR Telescope, a part of the U.S. National Science Foundation (NSF) Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF NOIRLab; Gemini South, one half of the International Gemini Observatory, funded in part by the NSF; and NSF–DOE Vera C. Rubin Observatory, which is jointly funded by the NSF and the U.S. Department of Energy Office of Science (DOE/SC). Petr Horálek, the photographer, is a NOIRLab Audiovisual Ambassador. Credit: NOIRLab/NSF/AURA/P. Horálek (Institute of Physics in Opava)
manisha boosted
Dr Christopher Berry
@cplberry@mastodon.online  ·  activity timestamp 2 weeks ago
Dr Christopher Berry
@cplberry@mastodon.online  ·  activity timestamp 3 weeks ago

A couple of really nice stories about the intriguing subsolar mass candidate #S251112cm

https://www.science.org/content/article/curious-gravitational-wave-may-be-hint-primordial-black-holes-or-just-noise by Adrian Cho

https://www.iflscience.com/candidate-gravitational-wave-detection-hints-at-first-of-its-kind-incredibly-small-object-81582 by @DrCarpineti

A groundbreaking discovery, or just a false alarm? Time (and more analysis) may tell

#Astrodon #GravitationalWaves
Daniel Pomarède
@pomarede@mastodon.social  ·  activity timestamp 2 weeks ago
As the evening Sun fades from the viewpoint on Cerro Pachón, a green light peeks through. This phenomenon is known as a green flash, or green rim. The green is a result of atmospheric refraction as the Earth’s atmosphere separates white sunlight into its constituent wavelengths. Although a green rim is present at every sunset, there’s a good chance that you’ve never noticed it! It’s too thin to be seen by the naked eye, and only lasts a handful of seconds as the Sun slips past the horizon. Photography and videography are the best ways to capture the rare appearance of this atmospheric effect. While not a natural phenomenon, this image also serendipitously captures a soaring airplane against the fading sunlight. This sunset was captured from Cerro Pachón in the Chilean Andes. Cerro Pachón is home to several telescopes operated by NOIRLab including the SOAR Telescope, a part of the U.S. National Science Foundation (NSF) Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF NOIRLab; Gemini South, one half of the International Gemini Observatory, funded in part by the NSF; and NSF–DOE Vera C. Rubin Observatory, which is jointly funded by the NSF and the U.S. Department of Energy Office of Science (DOE/SC). Petr Horálek, the photographer, is a NOIRLab Audiovisual Ambassador. Credit: NOIRLab/NSF/AURA/P. Horálek (Institute of Physics in Opava)
As the evening Sun fades from the viewpoint on Cerro Pachón, a green light peeks through. This phenomenon is known as a green flash, or green rim. The green is a result of atmospheric refraction as the Earth’s atmosphere separates white sunlight into its constituent wavelengths. Although a green rim is present at every sunset, there’s a good chance that you’ve never noticed it! It’s too thin to be seen by the naked eye, and only lasts a handful of seconds as the Sun slips past the horizon. Photography and videography are the best ways to capture the rare appearance of this atmospheric effect. While not a natural phenomenon, this image also serendipitously captures a soaring airplane against the fading sunlight. This sunset was captured from Cerro Pachón in the Chilean Andes. Cerro Pachón is home to several telescopes operated by NOIRLab including the SOAR Telescope, a part of the U.S. National Science Foundation (NSF) Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF NOIRLab; Gemini South, one half of the International Gemini Observatory, funded in part by the NSF; and NSF–DOE Vera C. Rubin Observatory, which is jointly funded by the NSF and the U.S. Department of Energy Office of Science (DOE/SC). Petr Horálek, the photographer, is a NOIRLab Audiovisual Ambassador. Credit: NOIRLab/NSF/AURA/P. Horálek (Institute of Physics in Opava)
As the evening Sun fades from the viewpoint on Cerro Pachón, a green light peeks through. This phenomenon is known as a green flash, or green rim. The green is a result of atmospheric refraction as the Earth’s atmosphere separates white sunlight into its constituent wavelengths. Although a green rim is present at every sunset, there’s a good chance that you’ve never noticed it! It’s too thin to be seen by the naked eye, and only lasts a handful of seconds as the Sun slips past the horizon. Photography and videography are the best ways to capture the rare appearance of this atmospheric effect. While not a natural phenomenon, this image also serendipitously captures a soaring airplane against the fading sunlight. This sunset was captured from Cerro Pachón in the Chilean Andes. Cerro Pachón is home to several telescopes operated by NOIRLab including the SOAR Telescope, a part of the U.S. National Science Foundation (NSF) Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF NOIRLab; Gemini South, one half of the International Gemini Observatory, funded in part by the NSF; and NSF–DOE Vera C. Rubin Observatory, which is jointly funded by the NSF and the U.S. Department of Energy Office of Science (DOE/SC). Petr Horálek, the photographer, is a NOIRLab Audiovisual Ambassador. Credit: NOIRLab/NSF/AURA/P. Horálek (Institute of Physics in Opava)
Dr Christopher Berry
@cplberry@mastodon.online  ·  activity timestamp 2 weeks ago
Dr Christopher Berry
@cplberry@mastodon.online  ·  activity timestamp 3 weeks ago

A couple of really nice stories about the intriguing subsolar mass candidate #S251112cm

https://www.science.org/content/article/curious-gravitational-wave-may-be-hint-primordial-black-holes-or-just-noise by Adrian Cho

https://www.iflscience.com/candidate-gravitational-wave-detection-hints-at-first-of-its-kind-incredibly-small-object-81582 by @DrCarpineti

A groundbreaking discovery, or just a false alarm? Time (and more analysis) may tell

#Astrodon #GravitationalWaves

Karl Urban boosted
AstroGeo Podcast
@astro_geo@chaos.social  ·  activity timestamp 3 weeks ago
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