@demonplanet.bsky.social
L. Drake Deming. Decades of exoplanets: Ground, Hubble, Spitzer, JWST. Radiative transfer. RV of the Sun-as-a-star.
I have to admit that I'm not pissed off at Avi Loeb. I just ignore that stuff, I have my hands full with real work.
November 22, 2025 at 12:28 AM
I have to admit that I'm not pissed off at Avi Loeb. I just ignore that stuff, I have my hands full with real work.
They might mean GISS, not GSFC per se. But still bad for GSFC.
November 1, 2025 at 1:25 AM
They might mean GISS, not GSFC per se. But still bad for GSFC.
It's my understanding that Venezuela has the world's largest proven oil reserves. Look it up - wikipedia.
November 1, 2025 at 1:00 AM
It's my understanding that Venezuela has the world's largest proven oil reserves. Look it up - wikipedia.
Was the central pressure of Camille measured?
October 28, 2025 at 2:12 PM
Was the central pressure of Camille measured?
Ah, I see the difference. Google AI gave me the wrong number for the TNT, but then several lines later it quoted the correct number, without even commenting on the contradiction. I should remember that AI has to be checked carefully. (so, what good is it?)
October 27, 2025 at 11:29 PM
Ah, I see the difference. Google AI gave me the wrong number for the TNT, but then several lines later it quoted the correct number, without even commenting on the contradiction. I should remember that AI has to be checked carefully. (so, what good is it?)
If you're referring to mc^2, then your math is off. An ounce is 28 grams, and mc^2 = 2.5e22 ergs = 60, 000, 000, 000 tons of TNT.
October 27, 2025 at 10:43 PM
If you're referring to mc^2, then your math is off. An ounce is 28 grams, and mc^2 = 2.5e22 ergs = 60, 000, 000, 000 tons of TNT.
According to Google AI, the total active-duty military payroll is $200 billion per year. 130 million will pay for about 6 hours of military payroll, if I did the math correctly.
October 24, 2025 at 7:17 PM
According to Google AI, the total active-duty military payroll is $200 billion per year. 130 million will pay for about 6 hours of military payroll, if I did the math correctly.
I'm certain that the number submitted is over 2900, and good chance that it hits 3000
October 16, 2025 at 2:23 PM
I'm certain that the number submitted is over 2900, and good chance that it hits 3000
We're over 2900 proposals, based on the latest minus earliest id numbers I've seen. Good chance that we hit 3000.
October 16, 2025 at 1:38 PM
We're over 2900 proposals, based on the latest minus earliest id numbers I've seen. Good chance that we hit 3000.
at 1:40 PM the number was already over 2100
October 15, 2025 at 9:13 PM
at 1:40 PM the number was already over 2100
over 2100 proposals at 1:40 PM.
October 15, 2025 at 5:59 PM
over 2100 proposals at 1:40 PM.
Numbered citations save space. Especially important for Cycle-5 proposals.
October 14, 2025 at 4:20 PM
Numbered citations save space. Especially important for Cycle-5 proposals.
Did you read the short story the film is based on? ("Farewell to the Master" by Harry Bates.) Klaatu is not who you think he is.
September 25, 2025 at 1:44 AM
Did you read the short story the film is based on? ("Farewell to the Master" by Harry Bates.) Klaatu is not who you think he is.
Exoplanet polarization has a checkered history, but I tend to believe this result, albeit for my own reasons.
September 25, 2025 at 1:29 AM
Exoplanet polarization has a checkered history, but I tend to believe this result, albeit for my own reasons.
And they probably have a significant effect on the radial velocity of the Sun-as-a-star. The NEID spectra will tell...
September 25, 2025 at 12:52 AM
And they probably have a significant effect on the radial velocity of the Sun-as-a-star. The NEID spectra will tell...
Technically, I think he asked about injecting bleach, not drinking it. But that's maybe worse....!
September 24, 2025 at 12:08 AM
Technically, I think he asked about injecting bleach, not drinking it. But that's maybe worse....!
As I understand the cosmic shoreline, it considers surface gravity with XUV input. Temperature is a third variable, so if the planet is hot enough to have a magma ocean and outgas more atmosphere, that doesn't contradict the shoreline concept. Right? Or am I missing something?
September 23, 2025 at 9:16 PM
As I understand the cosmic shoreline, it considers surface gravity with XUV input. Temperature is a third variable, so if the planet is hot enough to have a magma ocean and outgas more atmosphere, that doesn't contradict the shoreline concept. Right? Or am I missing something?
The Tara Lila trails near Eagle River have nice color in the woods.
September 22, 2025 at 12:25 AM
The Tara Lila trails near Eagle River have nice color in the woods.
..but there's THIS:
ui.adsabs.harvard.edu/abs/2007AsBi...
ui.adsabs.harvard.edu/abs/2007AsBi...
A Reappraisal of The Habitability of Planets around M Dwarf Stars
Stable, hydrogen-burning, M dwarf stars make up about 75% of all stars in the Galaxy. They are extremely long-lived, and because they are much smaller in mass than the Sun (between 0.5 and 0.08 M<SUB>...
ui.adsabs.harvard.edu
September 21, 2025 at 11:08 PM
..but there's THIS:
ui.adsabs.harvard.edu/abs/2007AsBi...
ui.adsabs.harvard.edu/abs/2007AsBi...
I agree with that. (It's only a hypothesis.)
September 21, 2025 at 11:00 PM
I agree with that. (It's only a hypothesis.)
Just to be clear: the planet is not spatially resolved, so it's an image of the telescope's point spread function, illuminated by light from the planet. The image doesn't show any spatial structure on the planet.
September 21, 2025 at 10:41 PM
Just to be clear: the planet is not spatially resolved, so it's an image of the telescope's point spread function, illuminated by light from the planet. The image doesn't show any spatial structure on the planet.
There is a school of thought that maintains that high energy stellar radiation makes life MORE likely, because it promotes life-developing molecular changes....
September 21, 2025 at 10:33 PM
There is a school of thought that maintains that high energy stellar radiation makes life MORE likely, because it promotes life-developing molecular changes....
This article concludes that "for habitable worlds, we will have to look elsewhere." But that ignores the Proxima system, where the b planet may have an atmosphere, and potentially habitable conditions. So perhaps I am justified to start packing?
September 21, 2025 at 10:29 PM
This article concludes that "for habitable worlds, we will have to look elsewhere." But that ignores the Proxima system, where the b planet may have an atmosphere, and potentially habitable conditions. So perhaps I am justified to start packing?
Not correct. It's been 33 years since the first exoplanets were discovered - the pulsar planets. 30 years since 51 Peg b, but the pulsar planets are the first exoplanets.
September 18, 2025 at 10:46 PM
Not correct. It's been 33 years since the first exoplanets were discovered - the pulsar planets. 30 years since 51 Peg b, but the pulsar planets are the first exoplanets.