Nereide
@drnereide.bsky.social
Physicist interested in Astrophysics and Particle Physics| Research in Math and Science Edu| Math and Science Writer| Teacher and Teacher Trainer| WomenInSTEM
My science blog: https://www.tutto-scienze.org/
More about me: https://x.com/settings/bio
My science blog: https://www.tutto-scienze.org/
More about me: https://x.com/settings/bio
Pinned
Avi Loeb's calculations about 3I/ATLAS are 100% wrong because he has never understood that dust in the tail(s) responds to solar radiation pressure. Solar wind shapes the ion tail. But the radiation pressure is about 1000 times larger than the solar wind ram pressure, for particles that feel it.
Reposted by Nereide
A thread worth reading slowly.
It explains, clearly and straight to the point, why Loeb’s claims about #3I/ATLAS don’t hold up—not a matter of opinion, but of comet physics anyone can check.
The tail isn’t escaping gas, it’s dust pushed by solar radiation.
🔭 🧪 #science #comet ⚛️
1/2
It explains, clearly and straight to the point, why Loeb’s claims about #3I/ATLAS don’t hold up—not a matter of opinion, but of comet physics anyone can check.
The tail isn’t escaping gas, it’s dust pushed by solar radiation.
🔭 🧪 #science #comet ⚛️
1/2
Avi Loeb's calculations about 3I/ATLAS are 100% wrong because he has never understood that dust in the tail(s) responds to solar radiation pressure. Solar wind shapes the ion tail. But the radiation pressure is about 1000 times larger than the solar wind ram pressure, for particles that feel it.
November 14, 2025 at 9:15 AM
Reposted by Nereide
I discovered this photo while scrolling through #APOD, and it stopped me cold.
Rodrigo Guerra’s extraordinary image captures 3 rare phenomena together:
- Venus at its maximum splendor
- intense zodiacal light
- a perfectly centered galactic bulge.
➡️ apod.nasa.gov/apod/ap21100...
🔭 🧪 #sciart 1/7
Rodrigo Guerra’s extraordinary image captures 3 rare phenomena together:
- Venus at its maximum splendor
- intense zodiacal light
- a perfectly centered galactic bulge.
➡️ apod.nasa.gov/apod/ap21100...
🔭 🧪 #sciart 1/7
November 13, 2025 at 6:18 PM
I discovered this photo while scrolling through #APOD, and it stopped me cold.
Rodrigo Guerra’s extraordinary image captures 3 rare phenomena together:
- Venus at its maximum splendor
- intense zodiacal light
- a perfectly centered galactic bulge.
➡️ apod.nasa.gov/apod/ap21100...
🔭 🧪 #sciart 1/7
Rodrigo Guerra’s extraordinary image captures 3 rare phenomena together:
- Venus at its maximum splendor
- intense zodiacal light
- a perfectly centered galactic bulge.
➡️ apod.nasa.gov/apod/ap21100...
🔭 🧪 #sciart 1/7
A thread worth reading slowly.
It explains, clearly and straight to the point, why Loeb’s claims about #3I/ATLAS don’t hold up—not a matter of opinion, but of comet physics anyone can check.
The tail isn’t escaping gas, it’s dust pushed by solar radiation.
🔭 🧪 #science #comet ⚛️
1/2
It explains, clearly and straight to the point, why Loeb’s claims about #3I/ATLAS don’t hold up—not a matter of opinion, but of comet physics anyone can check.
The tail isn’t escaping gas, it’s dust pushed by solar radiation.
🔭 🧪 #science #comet ⚛️
1/2
Avi Loeb's calculations about 3I/ATLAS are 100% wrong because he has never understood that dust in the tail(s) responds to solar radiation pressure. Solar wind shapes the ion tail. But the radiation pressure is about 1000 times larger than the solar wind ram pressure, for particles that feel it.
November 14, 2025 at 9:15 AM
I discovered this photo while scrolling through #APOD, and it stopped me cold.
Rodrigo Guerra’s extraordinary image captures 3 rare phenomena together:
- Venus at its maximum splendor
- intense zodiacal light
- a perfectly centered galactic bulge.
➡️ apod.nasa.gov/apod/ap21100...
🔭 🧪 #sciart 1/7
Rodrigo Guerra’s extraordinary image captures 3 rare phenomena together:
- Venus at its maximum splendor
- intense zodiacal light
- a perfectly centered galactic bulge.
➡️ apod.nasa.gov/apod/ap21100...
🔭 🧪 #sciart 1/7
November 13, 2025 at 6:18 PM
I discovered this photo while scrolling through #APOD, and it stopped me cold.
Rodrigo Guerra’s extraordinary image captures 3 rare phenomena together:
- Venus at its maximum splendor
- intense zodiacal light
- a perfectly centered galactic bulge.
➡️ apod.nasa.gov/apod/ap21100...
🔭 🧪 #sciart 1/7
Rodrigo Guerra’s extraordinary image captures 3 rare phenomena together:
- Venus at its maximum splendor
- intense zodiacal light
- a perfectly centered galactic bulge.
➡️ apod.nasa.gov/apod/ap21100...
🔭 🧪 #sciart 1/7
Reposted by Nereide
Absolutely breathtaking!
Pure wonder.
Thanks for sharing this magic.🌌✨🔭 🧪 ⚛️
Pure wonder.
Thanks for sharing this magic.🌌✨🔭 🧪 ⚛️
I am on my way home to Toronto and the aurorae are absolutely phenomenal.
If you are anywhere in the northern half of the continent, get outside and look up! Or better still, put your camera on a 10 second exposure and point it up.
If you are anywhere in the northern half of the continent, get outside and look up! Or better still, put your camera on a 10 second exposure and point it up.
November 13, 2025 at 10:51 AM
Absolutely breathtaking!
Pure wonder.
Thanks for sharing this magic.🌌✨🔭 🧪 ⚛️
Pure wonder.
Thanks for sharing this magic.🌌✨🔭 🧪 ⚛️
Reposted by Nereide
🧵
Here is the Nebra sky disk, considered by some the oldest known illustration of the night sky.
The artifact was discovered near Nebra alongside several Bronze Age weapons and is linked to the Unetice culture, which thrived in parts of Europe...
➡️ apod.nasa.gov/apod/ap18031...
🔭 🧪 #histsci
1/4
Here is the Nebra sky disk, considered by some the oldest known illustration of the night sky.
The artifact was discovered near Nebra alongside several Bronze Age weapons and is linked to the Unetice culture, which thrived in parts of Europe...
➡️ apod.nasa.gov/apod/ap18031...
🔭 🧪 #histsci
1/4
November 11, 2025 at 8:44 PM
🧵
Here is the Nebra sky disk, considered by some the oldest known illustration of the night sky.
The artifact was discovered near Nebra alongside several Bronze Age weapons and is linked to the Unetice culture, which thrived in parts of Europe...
➡️ apod.nasa.gov/apod/ap18031...
🔭 🧪 #histsci
1/4
Here is the Nebra sky disk, considered by some the oldest known illustration of the night sky.
The artifact was discovered near Nebra alongside several Bronze Age weapons and is linked to the Unetice culture, which thrived in parts of Europe...
➡️ apod.nasa.gov/apod/ap18031...
🔭 🧪 #histsci
1/4
Absolutely breathtaking!
Pure wonder.
Thanks for sharing this magic.🌌✨🔭 🧪 ⚛️
Pure wonder.
Thanks for sharing this magic.🌌✨🔭 🧪 ⚛️
I am on my way home to Toronto and the aurorae are absolutely phenomenal.
If you are anywhere in the northern half of the continent, get outside and look up! Or better still, put your camera on a 10 second exposure and point it up.
If you are anywhere in the northern half of the continent, get outside and look up! Or better still, put your camera on a 10 second exposure and point it up.
November 13, 2025 at 10:51 AM
Absolutely breathtaking!
Pure wonder.
Thanks for sharing this magic.🌌✨🔭 🧪 ⚛️
Pure wonder.
Thanks for sharing this magic.🌌✨🔭 🧪 ⚛️
Reposted by Nereide
Gaia will find ~120,000 exoplanets, mostly super-Jupiters!
From 2014–2025 at L2, it tracked >1B stars so precisely: a pinhead on the Moon from Earth!
Full data by 2030; first release predicts 7,500 planets.
Also: hypervelocity stars, quad systems & ancient galaxy merger remnants. 🔭 🧪 #science
From 2014–2025 at L2, it tracked >1B stars so precisely: a pinhead on the Moon from Earth!
Full data by 2030; first release predicts 7,500 planets.
Also: hypervelocity stars, quad systems & ancient galaxy merger remnants. 🔭 🧪 #science
When you repeatedly measure the positions of over a billion stars so accurately that you can see a star moving by an amount equal to the size of a pinhead on the Moon, as seen from Earth... you find amazing things!
It's great.
mathstodon.xyz/@johncarlosb...
It's great.
mathstodon.xyz/@johncarlosb...
John Carlos Baez (@johncarlosbaez@mathstodon.xyz)
Holy crap! The Gaia space telescope is expected to find 120,000 ± 22,000 planets orbiting other stars! Most will be super-Jupiters, because those are the easiest to find. But we'll know much more ...
mathstodon.xyz
November 12, 2025 at 9:36 AM
Gaia will find ~120,000 exoplanets, mostly super-Jupiters!
From 2014–2025 at L2, it tracked >1B stars so precisely: a pinhead on the Moon from Earth!
Full data by 2030; first release predicts 7,500 planets.
Also: hypervelocity stars, quad systems & ancient galaxy merger remnants. 🔭 🧪 #science
From 2014–2025 at L2, it tracked >1B stars so precisely: a pinhead on the Moon from Earth!
Full data by 2030; first release predicts 7,500 planets.
Also: hypervelocity stars, quad systems & ancient galaxy merger remnants. 🔭 🧪 #science
Gaia will find ~120,000 exoplanets, mostly super-Jupiters!
From 2014–2025 at L2, it tracked >1B stars so precisely: a pinhead on the Moon from Earth!
Full data by 2030; first release predicts 7,500 planets.
Also: hypervelocity stars, quad systems & ancient galaxy merger remnants. 🔭 🧪 #science
From 2014–2025 at L2, it tracked >1B stars so precisely: a pinhead on the Moon from Earth!
Full data by 2030; first release predicts 7,500 planets.
Also: hypervelocity stars, quad systems & ancient galaxy merger remnants. 🔭 🧪 #science
When you repeatedly measure the positions of over a billion stars so accurately that you can see a star moving by an amount equal to the size of a pinhead on the Moon, as seen from Earth... you find amazing things!
It's great.
mathstodon.xyz/@johncarlosb...
It's great.
mathstodon.xyz/@johncarlosb...
John Carlos Baez (@johncarlosbaez@mathstodon.xyz)
Holy crap! The Gaia space telescope is expected to find 120,000 ± 22,000 planets orbiting other stars! Most will be super-Jupiters, because those are the easiest to find. But we'll know much more ...
mathstodon.xyz
November 12, 2025 at 9:36 AM
Gaia will find ~120,000 exoplanets, mostly super-Jupiters!
From 2014–2025 at L2, it tracked >1B stars so precisely: a pinhead on the Moon from Earth!
Full data by 2030; first release predicts 7,500 planets.
Also: hypervelocity stars, quad systems & ancient galaxy merger remnants. 🔭 🧪 #science
From 2014–2025 at L2, it tracked >1B stars so precisely: a pinhead on the Moon from Earth!
Full data by 2030; first release predicts 7,500 planets.
Also: hypervelocity stars, quad systems & ancient galaxy merger remnants. 🔭 🧪 #science
Reposted by Nereide
#WorldScienceDay for Peace and Development.
Science lets us understand the wonderful universe we live in.
It allow us to find answers to emerging challenges so we can create a more just and fair global society.
🔭 🧪 ⚛️ #ScienceDay #Science
1/2
Science lets us understand the wonderful universe we live in.
It allow us to find answers to emerging challenges so we can create a more just and fair global society.
🔭 🧪 ⚛️ #ScienceDay #Science
1/2
November 10, 2025 at 4:12 PM
#WorldScienceDay for Peace and Development.
Science lets us understand the wonderful universe we live in.
It allow us to find answers to emerging challenges so we can create a more just and fair global society.
🔭 🧪 ⚛️ #ScienceDay #Science
1/2
Science lets us understand the wonderful universe we live in.
It allow us to find answers to emerging challenges so we can create a more just and fair global society.
🔭 🧪 ⚛️ #ScienceDay #Science
1/2
🧵
Here is the Nebra sky disk, considered by some the oldest known illustration of the night sky.
The artifact was discovered near Nebra alongside several Bronze Age weapons and is linked to the Unetice culture, which thrived in parts of Europe...
➡️ apod.nasa.gov/apod/ap18031...
🔭 🧪 #histsci
1/4
Here is the Nebra sky disk, considered by some the oldest known illustration of the night sky.
The artifact was discovered near Nebra alongside several Bronze Age weapons and is linked to the Unetice culture, which thrived in parts of Europe...
➡️ apod.nasa.gov/apod/ap18031...
🔭 🧪 #histsci
1/4
November 11, 2025 at 8:44 PM
🧵
Here is the Nebra sky disk, considered by some the oldest known illustration of the night sky.
The artifact was discovered near Nebra alongside several Bronze Age weapons and is linked to the Unetice culture, which thrived in parts of Europe...
➡️ apod.nasa.gov/apod/ap18031...
🔭 🧪 #histsci
1/4
Here is the Nebra sky disk, considered by some the oldest known illustration of the night sky.
The artifact was discovered near Nebra alongside several Bronze Age weapons and is linked to the Unetice culture, which thrived in parts of Europe...
➡️ apod.nasa.gov/apod/ap18031...
🔭 🧪 #histsci
1/4
Reposted by Nereide
Interstellar comet 3I/ATLAS was born with different and more ancient chemistry, has been more irradiated, and is speeding toward the Sun faster compared to Solar System comets. It's got a unique personality. But since literally Day 1 it was recognized as a comet and has only ever done comety things.
I've summarized the truth about Loeb's 10 "anomalies" about 3I/ATLAS in one post.
Thanks to @deschscoveries.bsky.social @michael-w-busch.bsky.social @cometary.org and @marshall-eubanks.bsky.social for contributing their expertise!
Thanks to @deschscoveries.bsky.social @michael-w-busch.bsky.social @cometary.org and @marshall-eubanks.bsky.social for contributing their expertise!
Loeb’s 3I/ATLAS “Anomalies” Explained
Avi Loeb continues to claim that 3I/ATLAS has many anomalous behaviors that lead to the conclusion that it “might” be an alien spacecraft. He carefully hedges the probability that it is a spacecraft ...
sites.psu.edu
November 10, 2025 at 6:29 PM
Interstellar comet 3I/ATLAS was born with different and more ancient chemistry, has been more irradiated, and is speeding toward the Sun faster compared to Solar System comets. It's got a unique personality. But since literally Day 1 it was recognized as a comet and has only ever done comety things.
Reposted by Nereide
"Look again at that dot. That’s here. That’s home. That’s us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives."
― Carl Sagan, born 9 November 1934
Video Credit: @planetarysociety.bsky.social
#PaleBlueDot 🔭 🧪 #CarlSagan
― Carl Sagan, born 9 November 1934
Video Credit: @planetarysociety.bsky.social
#PaleBlueDot 🔭 🧪 #CarlSagan
November 9, 2025 at 6:21 PM
"Look again at that dot. That’s here. That’s home. That’s us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives."
― Carl Sagan, born 9 November 1934
Video Credit: @planetarysociety.bsky.social
#PaleBlueDot 🔭 🧪 #CarlSagan
― Carl Sagan, born 9 November 1934
Video Credit: @planetarysociety.bsky.social
#PaleBlueDot 🔭 🧪 #CarlSagan
#WorldScienceDay for Peace and Development.
Science lets us understand the wonderful universe we live in.
It allow us to find answers to emerging challenges so we can create a more just and fair global society.
🔭 🧪 ⚛️ #ScienceDay #Science
1/2
Science lets us understand the wonderful universe we live in.
It allow us to find answers to emerging challenges so we can create a more just and fair global society.
🔭 🧪 ⚛️ #ScienceDay #Science
1/2
November 10, 2025 at 4:12 PM
#WorldScienceDay for Peace and Development.
Science lets us understand the wonderful universe we live in.
It allow us to find answers to emerging challenges so we can create a more just and fair global society.
🔭 🧪 ⚛️ #ScienceDay #Science
1/2
Science lets us understand the wonderful universe we live in.
It allow us to find answers to emerging challenges so we can create a more just and fair global society.
🔭 🧪 ⚛️ #ScienceDay #Science
1/2
Reposted by Nereide
A 1953 draft story described two collaborative teams (the experimentalists Wilkins-Franklin; the theorists Watson-Crick), with Franklin as an equal partner in testing the model.
The draft was discovered by Cobb and Comfort in the archives and represents contemporary evidence...
🧪 #histsci
1/4
The draft was discovered by Cobb and Comfort in the archives and represents contemporary evidence...
🧪 #histsci
1/4
The “canonical” story how Rosalind Franklin got wronged by Watson and Crick inadvertently makes her look far less scientifically competent than she was (“She did not realize the significance of her own data!”). This article offers a much more nuanced account of what happened.
What Rosalind Franklin truly contributed to the discovery of DNA’s structure
Franklin was no victim in how the DNA double helix was solved. An overlooked letter and an unpublished news article, both written in 1953, reveal that she was an equal player.
www.nature.com
November 9, 2025 at 11:43 AM
A 1953 draft story described two collaborative teams (the experimentalists Wilkins-Franklin; the theorists Watson-Crick), with Franklin as an equal partner in testing the model.
The draft was discovered by Cobb and Comfort in the archives and represents contemporary evidence...
🧪 #histsci
1/4
The draft was discovered by Cobb and Comfort in the archives and represents contemporary evidence...
🧪 #histsci
1/4
"Look again at that dot. That’s here. That’s home. That’s us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives."
― Carl Sagan, born 9 November 1934
Video Credit: @planetarysociety.bsky.social
#PaleBlueDot 🔭 🧪 #CarlSagan
― Carl Sagan, born 9 November 1934
Video Credit: @planetarysociety.bsky.social
#PaleBlueDot 🔭 🧪 #CarlSagan
November 9, 2025 at 6:21 PM
"Look again at that dot. That’s here. That’s home. That’s us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives."
― Carl Sagan, born 9 November 1934
Video Credit: @planetarysociety.bsky.social
#PaleBlueDot 🔭 🧪 #CarlSagan
― Carl Sagan, born 9 November 1934
Video Credit: @planetarysociety.bsky.social
#PaleBlueDot 🔭 🧪 #CarlSagan
Reposted by Nereide
On 7 November 1878, physicist Lise Meitner was born.
Read Baez’s thread: a real jewel of science storytelling and passion.
Lise Meitner also kicked the door wide open for women in physics with nothing but genius and grit.
Read it, fall in love, share it.
⚛️ 🧪 #physics #HistSci #WomenInSTEM
Read Baez’s thread: a real jewel of science storytelling and passion.
Lise Meitner also kicked the door wide open for women in physics with nothing but genius and grit.
Read it, fall in love, share it.
⚛️ 🧪 #physics #HistSci #WomenInSTEM
Lise Meitner, who discovered nuclear fission and did the experiments that led Pauli to postulate neutrinos, is one of my heroes. She had to work twice as hard for everything, and did so much.
I tell a bit of her story here:
mathstodon.xyz/@johncarlosb...
I tell a bit of her story here:
mathstodon.xyz/@johncarlosb...
John Carlos Baez (@johncarlosbaez@mathstodon.xyz)
Attached: 1 image
Lise Meitner, who discovered nuclear fission, is one of my heroes. She had to work twice as hard for everything, and did so much.
The Austrian government did not open the universi...
mathstodon.xyz
November 7, 2025 at 10:16 AM
On 7 November 1878, physicist Lise Meitner was born.
Read Baez’s thread: a real jewel of science storytelling and passion.
Lise Meitner also kicked the door wide open for women in physics with nothing but genius and grit.
Read it, fall in love, share it.
⚛️ 🧪 #physics #HistSci #WomenInSTEM
Read Baez’s thread: a real jewel of science storytelling and passion.
Lise Meitner also kicked the door wide open for women in physics with nothing but genius and grit.
Read it, fall in love, share it.
⚛️ 🧪 #physics #HistSci #WomenInSTEM
A 1953 draft story described two collaborative teams (the experimentalists Wilkins-Franklin; the theorists Watson-Crick), with Franklin as an equal partner in testing the model.
The draft was discovered by Cobb and Comfort in the archives and represents contemporary evidence...
🧪 #histsci
1/4
The draft was discovered by Cobb and Comfort in the archives and represents contemporary evidence...
🧪 #histsci
1/4
The “canonical” story how Rosalind Franklin got wronged by Watson and Crick inadvertently makes her look far less scientifically competent than she was (“She did not realize the significance of her own data!”). This article offers a much more nuanced account of what happened.
What Rosalind Franklin truly contributed to the discovery of DNA’s structure
Franklin was no victim in how the DNA double helix was solved. An overlooked letter and an unpublished news article, both written in 1953, reveal that she was an equal player.
www.nature.com
November 9, 2025 at 11:43 AM
A 1953 draft story described two collaborative teams (the experimentalists Wilkins-Franklin; the theorists Watson-Crick), with Franklin as an equal partner in testing the model.
The draft was discovered by Cobb and Comfort in the archives and represents contemporary evidence...
🧪 #histsci
1/4
The draft was discovered by Cobb and Comfort in the archives and represents contemporary evidence...
🧪 #histsci
1/4
Reposted by Nereide
In this splendid photo from Valerio Minato three wonders were captured in a single shot:
- the Basilica of Superga, located near Turin (Italy)
- the Monviso, the highest mountain of the Cottian Alps
- the setting Moon, captured in a crescent phase
➡️ apod.nasa.gov/apod/ap23122...
🔭 🧪 #sciart
1/2
- the Basilica of Superga, located near Turin (Italy)
- the Monviso, the highest mountain of the Cottian Alps
- the setting Moon, captured in a crescent phase
➡️ apod.nasa.gov/apod/ap23122...
🔭 🧪 #sciart
1/2
November 6, 2025 at 2:10 PM
In this splendid photo from Valerio Minato three wonders were captured in a single shot:
- the Basilica of Superga, located near Turin (Italy)
- the Monviso, the highest mountain of the Cottian Alps
- the setting Moon, captured in a crescent phase
➡️ apod.nasa.gov/apod/ap23122...
🔭 🧪 #sciart
1/2
- the Basilica of Superga, located near Turin (Italy)
- the Monviso, the highest mountain of the Cottian Alps
- the setting Moon, captured in a crescent phase
➡️ apod.nasa.gov/apod/ap23122...
🔭 🧪 #sciart
1/2
On 7 November 1878, physicist Lise Meitner was born.
Read Baez’s thread: a real jewel of science storytelling and passion.
Lise Meitner also kicked the door wide open for women in physics with nothing but genius and grit.
Read it, fall in love, share it.
⚛️ 🧪 #physics #HistSci #WomenInSTEM
Read Baez’s thread: a real jewel of science storytelling and passion.
Lise Meitner also kicked the door wide open for women in physics with nothing but genius and grit.
Read it, fall in love, share it.
⚛️ 🧪 #physics #HistSci #WomenInSTEM
Lise Meitner, who discovered nuclear fission and did the experiments that led Pauli to postulate neutrinos, is one of my heroes. She had to work twice as hard for everything, and did so much.
I tell a bit of her story here:
mathstodon.xyz/@johncarlosb...
I tell a bit of her story here:
mathstodon.xyz/@johncarlosb...
John Carlos Baez (@johncarlosbaez@mathstodon.xyz)
Attached: 1 image
Lise Meitner, who discovered nuclear fission, is one of my heroes. She had to work twice as hard for everything, and did so much.
The Austrian government did not open the universi...
mathstodon.xyz
November 7, 2025 at 10:16 AM
On 7 November 1878, physicist Lise Meitner was born.
Read Baez’s thread: a real jewel of science storytelling and passion.
Lise Meitner also kicked the door wide open for women in physics with nothing but genius and grit.
Read it, fall in love, share it.
⚛️ 🧪 #physics #HistSci #WomenInSTEM
Read Baez’s thread: a real jewel of science storytelling and passion.
Lise Meitner also kicked the door wide open for women in physics with nothing but genius and grit.
Read it, fall in love, share it.
⚛️ 🧪 #physics #HistSci #WomenInSTEM
Reposted by Nereide
This stunning image shows NGC 2185 and NGC 2183, two reflection nebulae in southeastern Monoceros.
Image: Adam Block /Mount Lemmon SkyCenter/University of Arizona
Image source➡️ adamblockphotos.com/ngc-2185.html
Via Wikimedia Commons
🔭 🧪 #science
1/3
Image: Adam Block /Mount Lemmon SkyCenter/University of Arizona
Image source➡️ adamblockphotos.com/ngc-2185.html
Via Wikimedia Commons
🔭 🧪 #science
1/3
November 5, 2025 at 7:58 PM
This stunning image shows NGC 2185 and NGC 2183, two reflection nebulae in southeastern Monoceros.
Image: Adam Block /Mount Lemmon SkyCenter/University of Arizona
Image source➡️ adamblockphotos.com/ngc-2185.html
Via Wikimedia Commons
🔭 🧪 #science
1/3
Image: Adam Block /Mount Lemmon SkyCenter/University of Arizona
Image source➡️ adamblockphotos.com/ngc-2185.html
Via Wikimedia Commons
🔭 🧪 #science
1/3
In this splendid photo from Valerio Minato three wonders were captured in a single shot:
- the Basilica of Superga, located near Turin (Italy)
- the Monviso, the highest mountain of the Cottian Alps
- the setting Moon, captured in a crescent phase
➡️ apod.nasa.gov/apod/ap23122...
🔭 🧪 #sciart
1/2
- the Basilica of Superga, located near Turin (Italy)
- the Monviso, the highest mountain of the Cottian Alps
- the setting Moon, captured in a crescent phase
➡️ apod.nasa.gov/apod/ap23122...
🔭 🧪 #sciart
1/2
November 6, 2025 at 2:10 PM
In this splendid photo from Valerio Minato three wonders were captured in a single shot:
- the Basilica of Superga, located near Turin (Italy)
- the Monviso, the highest mountain of the Cottian Alps
- the setting Moon, captured in a crescent phase
➡️ apod.nasa.gov/apod/ap23122...
🔭 🧪 #sciart
1/2
- the Basilica of Superga, located near Turin (Italy)
- the Monviso, the highest mountain of the Cottian Alps
- the setting Moon, captured in a crescent phase
➡️ apod.nasa.gov/apod/ap23122...
🔭 🧪 #sciart
1/2
This stunning image shows NGC 2185 and NGC 2183, two reflection nebulae in southeastern Monoceros.
Image: Adam Block /Mount Lemmon SkyCenter/University of Arizona
Image source➡️ adamblockphotos.com/ngc-2185.html
Via Wikimedia Commons
🔭 🧪 #science
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Image: Adam Block /Mount Lemmon SkyCenter/University of Arizona
Image source➡️ adamblockphotos.com/ngc-2185.html
Via Wikimedia Commons
🔭 🧪 #science
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November 5, 2025 at 7:58 PM
This stunning image shows NGC 2185 and NGC 2183, two reflection nebulae in southeastern Monoceros.
Image: Adam Block /Mount Lemmon SkyCenter/University of Arizona
Image source➡️ adamblockphotos.com/ngc-2185.html
Via Wikimedia Commons
🔭 🧪 #science
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Image: Adam Block /Mount Lemmon SkyCenter/University of Arizona
Image source➡️ adamblockphotos.com/ngc-2185.html
Via Wikimedia Commons
🔭 🧪 #science
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Reposted by Nereide
3I/ATLAS has both Ni and Fe vapor, like 2I/Borisov and dozens of solar system comets. These are probably from carbonyls formed when metal reacts with ice, and seems pretty universal. Its 3I/ATLAS’s hyperbolic orbit that tells us it formed in another star system.
3I/ATLAS, a rare interstellar comet spotted in 2025, shows vaporised nickel far from the Sun metal usually won’t evaporate there. It hints at the comet formed in a distant, cold star system, possibly older than our Sun.
Image: NASA/ESA/AP
Image: NASA/ESA/AP
November 3, 2025 at 11:07 AM
3I/ATLAS has both Ni and Fe vapor, like 2I/Borisov and dozens of solar system comets. These are probably from carbonyls formed when metal reacts with ice, and seems pretty universal. Its 3I/ATLAS’s hyperbolic orbit that tells us it formed in another star system.
Reposted by Nereide
What a sight!
The emerald-green core of C/2025 A6 (Lemmon) glows among Boötes’ stars: a view of pure magic by Simeon Schmauß.
Bravo!
🔭 🧪 #CometC2025A6 #CometLemmon
The emerald-green core of C/2025 A6 (Lemmon) glows among Boötes’ stars: a view of pure magic by Simeon Schmauß.
Bravo!
🔭 🧪 #CometC2025A6 #CometLemmon
#Comet C/2025 A6 #Lemmon in the constellation Boötes, on the evening of October 24th. Captured from the light polluted outskirts of Munich.
16 minutes integration time with my Fujifilm X-S10 and 135mm f4.5 lens (untracked).
#astrophotography 🔭
16 minutes integration time with my Fujifilm X-S10 and 135mm f4.5 lens (untracked).
#astrophotography 🔭
November 4, 2025 at 8:47 AM
What a sight!
The emerald-green core of C/2025 A6 (Lemmon) glows among Boötes’ stars: a view of pure magic by Simeon Schmauß.
Bravo!
🔭 🧪 #CometC2025A6 #CometLemmon
The emerald-green core of C/2025 A6 (Lemmon) glows among Boötes’ stars: a view of pure magic by Simeon Schmauß.
Bravo!
🔭 🧪 #CometC2025A6 #CometLemmon