Matt Strassler
@mattstrassler.bsky.social
Theoretical physicist (particle physics, string theory, black holes), semi-retired professor, writer (author of the popular science book "Waves in an Impossible Sea"), amateur musician, and activist for founding public policy on facts and logic
More BlueSky in Europe, which needs as much as it can get
February 15, 2025 at 4:52 PM
More BlueSky in Europe, which needs as much as it can get
Just so you're keeping score: the judicial branch no longer has a role to play, according to the executive branch.
February 10, 2025 at 1:02 AM
Just so you're keeping score: the judicial branch no longer has a role to play, according to the executive branch.
Bluesky, out across the great ocean to a special port
February 9, 2025 at 11:45 PM
Bluesky, out across the great ocean to a special port
The sky may be blue. But these are bad, bad lands, with no obvious safe passage, and the heat is insufferable. The only good news is that these mountains are much smaller than they appear.
February 6, 2025 at 4:42 AM
The sky may be blue. But these are bad, bad lands, with no obvious safe passage, and the heat is insufferable. The only good news is that these mountains are much smaller than they appear.
At the #LHC, ordinary jets (sprays of particles) are common, and not easy to distinguish from "jets-of-jets" caused by new particles subject to a new strong force. Recently, using a simple, elegant method, the ATLAS experiment searched for jets-of-jets. profmattstrassler.com/2025/01/29/a...
January 29, 2025 at 1:32 PM
At the #LHC, ordinary jets (sprays of particles) are common, and not easy to distinguish from "jets-of-jets" caused by new particles subject to a new strong force. Recently, using a simple, elegant method, the ATLAS experiment searched for jets-of-jets. profmattstrassler.com/2025/01/29/a...
The sky is still blue somewhere. In Japan, for instance. Autumn is a time for wistful melancholy, savoring the last days of warmth before a brutal winter..
January 26, 2025 at 3:24 PM
The sky is still blue somewhere. In Japan, for instance. Autumn is a time for wistful melancholy, savoring the last days of warmth before a brutal winter..
Somewhere, far from here, the sky is still blue
January 21, 2025 at 10:14 PM
Somewhere, far from here, the sky is still blue
Despite the cold and gloom, there are always photos of Bluesky
January 17, 2025 at 9:51 PM
Despite the cold and gloom, there are always photos of Bluesky
a bluesky photo from the east side of the Sierra Nevada (at a non-nevada time of year...)
January 7, 2025 at 5:04 PM
a bluesky photo from the east side of the Sierra Nevada (at a non-nevada time of year...)
A Bluesky photo of waterbirds and water to remind us why we tolerate a few months of winter.
January 6, 2025 at 8:54 PM
A Bluesky photo of waterbirds and water to remind us why we tolerate a few months of winter.
Sorry to say, today's geomagnetic storm and northern lights are probably over. The storm has subsided and there's no particularly good reason to expect them to resume.
January 2, 2025 at 12:04 AM
Sorry to say, today's geomagnetic storm and northern lights are probably over. The storm has subsided and there's no particularly good reason to expect them to resume.
Update: NO. Storm is over.
January 2, 2025 at 12:04 AM
Update: NO. Storm is over.
🔭🧪The geomagnetic storm has gotten even stronger, and auroras (a.k.a. northern lights) should be visible in northern Europe and Atlantic Canada. Maybe they will continue for a few more hours?
January 1, 2025 at 9:03 PM
🔭🧪The geomagnetic storm has gotten even stronger, and auroras (a.k.a. northern lights) should be visible in northern Europe and Atlantic Canada. Maybe they will continue for a few more hours?
🔭🧪Those in northern Europe might see for northern lights this evening. Whether those of us in the Americas will get a chance isn't clear...
January 1, 2025 at 5:42 PM
🔭🧪Those in northern Europe might see for northern lights this evening. Whether those of us in the Americas will get a chance isn't clear...
Another Bluesky photo: sea of blue, sky of orange, sun of green. [Photo taken in the Caribbean in 2009.]
December 29, 2024 at 1:59 PM
Another Bluesky photo: sea of blue, sky of orange, sun of green. [Photo taken in the Caribbean in 2009.]
Lower Manhattan against a darkening bluesky. From 2014.
December 26, 2024 at 4:08 PM
Lower Manhattan against a darkening bluesky. From 2014.
It may be cloudy and a bit snowy this morning, but on BlueSky it's another matter...
December 24, 2024 at 2:58 PM
It may be cloudy and a bit snowy this morning, but on BlueSky it's another matter...
Bluesky in a Massachusetts winter scene
December 23, 2024 at 10:44 PM
Bluesky in a Massachusetts winter scene
🔭Dark bluesky: Venus and the Moon glowing above the Pacific Ocean at twilight on July 15th, 2018. (I knew it was going to be a pretty night, but I wasn't expecting them to align so perfectly.) Taken with an ordinary cell phone.
December 22, 2024 at 3:13 PM
🔭Dark bluesky: Venus and the Moon glowing above the Pacific Ocean at twilight on July 15th, 2018. (I knew it was going to be a pretty night, but I wasn't expecting them to align so perfectly.) Taken with an ordinary cell phone.
Bluesky and sunrise over Uluru. Australia 2019.
December 20, 2024 at 8:47 PM
Bluesky and sunrise over Uluru. Australia 2019.
Mostly bluesky, with a white icefield and a black raven.
December 20, 2024 at 1:39 AM
Mostly bluesky, with a white icefield and a black raven.
Today's blue sky photo: the retreating glaciers of the Mt. Baker volcano, in the state of Washington. Probably have retreated somewhat further since I took this picture.
December 15, 2024 at 6:14 PM
Today's blue sky photo: the retreating glaciers of the Mt. Baker volcano, in the state of Washington. Probably have retreated somewhat further since I took this picture.
🧪A reminder, if you're in or around Ann Arbor, Michigan: a public talk today at 4 pm! (Please share...)
December 5, 2024 at 2:55 PM
🧪A reminder, if you're in or around Ann Arbor, Michigan: a public talk today at 4 pm! (Please share...)
🧪More details on the public talk that I'm giving on Thursday (4pm) in Ann Arbor, at the University of Michigan. Please share with your friends in that part of the world! Thanks...!
December 3, 2024 at 9:19 PM
🧪More details on the public talk that I'm giving on Thursday (4pm) in Ann Arbor, at the University of Michigan. Please share with your friends in that part of the world! Thanks...!
Very different from the smoky blue sky of two weeks ago. Nothing, though, compared to my friends in Erie, PA, who have no blue sky and over two feet of snow... so far...
December 1, 2024 at 8:48 PM
Very different from the smoky blue sky of two weeks ago. Nothing, though, compared to my friends in Erie, PA, who have no blue sky and over two feet of snow... so far...