Not that anybody asked, but If you accumulated all the flora, fauna, and metal that your True Love gives you each day in the “Twelve Days of Christmas” song, you would own 12 Trees, 40 Gold Rings, 140 Humans, and 185 Birds of 6 different species.
December 26, 2025 at 3:16 PM
Not that anybody asked, but If you accumulated all the flora, fauna, and metal that your True Love gives you each day in the “Twelve Days of Christmas” song, you would own 12 Trees, 40 Gold Rings, 140 Humans, and 185 Birds of 6 different species.
Not that anybody asked, but the Northern Arctic is just Ocean. So Santa’s North Pole Workshop has only ever existed on a floating sheet of ice.
No fur trees.
No hills.
Occasional seals.
And polar bears — for now.
No fur trees.
No hills.
Occasional seals.
And polar bears — for now.
December 25, 2025 at 8:27 PM
Not that anybody asked, but the Northern Arctic is just Ocean. So Santa’s North Pole Workshop has only ever existed on a floating sheet of ice.
No fur trees.
No hills.
Occasional seals.
And polar bears — for now.
No fur trees.
No hills.
Occasional seals.
And polar bears — for now.
Santa's pale because he visits in the middle of six months of darkness on Earth’s North Pole. And for the other six months, the Sun ascends no more than 23.5 degrees above the horizon. And he delivers gifts only at night.
All combined, Santa might be the whitest person on Earth.
All combined, Santa might be the whitest person on Earth.
December 25, 2025 at 6:40 PM
Santa's pale because he visits in the middle of six months of darkness on Earth’s North Pole. And for the other six months, the Sun ascends no more than 23.5 degrees above the horizon. And he delivers gifts only at night.
All combined, Santa might be the whitest person on Earth.
All combined, Santa might be the whitest person on Earth.
Famous people actually born on Christmas Day…
Gregorian Calendar: Clara Barton, Conrad Hilton, Humphrey Bogart, Rod Serling, Jimmy Buffett, Barbara Mandrell, Sissy Spacek, Annie Lennox, Ricky Henderson, Justin Trudeau
Julian Calendar: Sir Isaac Newton
Gregorian Calendar: Clara Barton, Conrad Hilton, Humphrey Bogart, Rod Serling, Jimmy Buffett, Barbara Mandrell, Sissy Spacek, Annie Lennox, Ricky Henderson, Justin Trudeau
Julian Calendar: Sir Isaac Newton
December 25, 2025 at 2:31 PM
Famous people actually born on Christmas Day…
Gregorian Calendar: Clara Barton, Conrad Hilton, Humphrey Bogart, Rod Serling, Jimmy Buffett, Barbara Mandrell, Sissy Spacek, Annie Lennox, Ricky Henderson, Justin Trudeau
Julian Calendar: Sir Isaac Newton
Gregorian Calendar: Clara Barton, Conrad Hilton, Humphrey Bogart, Rod Serling, Jimmy Buffett, Barbara Mandrell, Sissy Spacek, Annie Lennox, Ricky Henderson, Justin Trudeau
Julian Calendar: Sir Isaac Newton
Merry Christmas to everyone in the world who is Christian, and to others who celebrate it — just for the heaven of it.
As for the rest of everybody, including Muslims, Atheists, Hindus, Buddhists, Animists, & Jews, Happy Thursday!
As for the rest of everybody, including Muslims, Atheists, Hindus, Buddhists, Animists, & Jews, Happy Thursday!
December 25, 2025 at 1:00 PM
Merry Christmas to everyone in the world who is Christian, and to others who celebrate it — just for the heaven of it.
As for the rest of everybody, including Muslims, Atheists, Hindus, Buddhists, Animists, & Jews, Happy Thursday!
As for the rest of everybody, including Muslims, Atheists, Hindus, Buddhists, Animists, & Jews, Happy Thursday!
In case you didn't know...
Both male & female Reindeer grow antlers, but males lose them in late Autumn. All Santa’s reindeer are therefore female, which means Rudolph is persistently misgendered.
Both male & female Reindeer grow antlers, but males lose them in late Autumn. All Santa’s reindeer are therefore female, which means Rudolph is persistently misgendered.
December 24, 2025 at 9:54 PM
In case you didn't know...
Both male & female Reindeer grow antlers, but males lose them in late Autumn. All Santa’s reindeer are therefore female, which means Rudolph is persistently misgendered.
Both male & female Reindeer grow antlers, but males lose them in late Autumn. All Santa’s reindeer are therefore female, which means Rudolph is persistently misgendered.
If people left Hot Tea, Carrots, and Celery for Santa on the table Christmas Eve, rather than Milk & Cookies, I bet he’d be much, much, thinner.
December 24, 2025 at 9:39 PM
If people left Hot Tea, Carrots, and Celery for Santa on the table Christmas Eve, rather than Milk & Cookies, I bet he’d be much, much, thinner.
⠀⠀⠀⠀⠀⠀⠀⠀⠀
Santa knows Physics…
⠀⠀⠀⠀⠀⠀⠀⠀⠀
Of all colors, Red Light penetrates fog best. That's why Benny the Blue-nosed reindeer never got the gig.
Santa knows Physics…
⠀⠀⠀⠀⠀⠀⠀⠀⠀
Of all colors, Red Light penetrates fog best. That's why Benny the Blue-nosed reindeer never got the gig.
December 24, 2025 at 7:32 PM
⠀⠀⠀⠀⠀⠀⠀⠀⠀
Santa knows Physics…
⠀⠀⠀⠀⠀⠀⠀⠀⠀
Of all colors, Red Light penetrates fog best. That's why Benny the Blue-nosed reindeer never got the gig.
Santa knows Physics…
⠀⠀⠀⠀⠀⠀⠀⠀⠀
Of all colors, Red Light penetrates fog best. That's why Benny the Blue-nosed reindeer never got the gig.
Northern Hemisphere Reasoning:
December Solstice has the least daylight, so for every day of Winter & Spring, daylight increases, up to the Summer Solstice.
June Solstice has the most daylight, so for every day of Summer & Autumn, daylight decreases, up to the Winter Solstice.
December Solstice has the least daylight, so for every day of Winter & Spring, daylight increases, up to the Summer Solstice.
June Solstice has the most daylight, so for every day of Summer & Autumn, daylight decreases, up to the Winter Solstice.
December 21, 2025 at 3:40 PM
Northern Hemisphere Reasoning:
December Solstice has the least daylight, so for every day of Winter & Spring, daylight increases, up to the Summer Solstice.
June Solstice has the most daylight, so for every day of Summer & Autumn, daylight decreases, up to the Winter Solstice.
December Solstice has the least daylight, so for every day of Winter & Spring, daylight increases, up to the Summer Solstice.
June Solstice has the most daylight, so for every day of Summer & Autumn, daylight decreases, up to the Winter Solstice.
**Solstice**
10:03am ET — Dec 21, 2025
On this day, Earth's North Pole tips away from the Sun, while the South Pole tips towards it, bringing the first day of Winter to the Northern Hemisphere with increasing daylight, and the first day of Summer to the Southern Hemisphere with decreasing daylight
10:03am ET — Dec 21, 2025
On this day, Earth's North Pole tips away from the Sun, while the South Pole tips towards it, bringing the first day of Winter to the Northern Hemisphere with increasing daylight, and the first day of Summer to the Southern Hemisphere with decreasing daylight
December 21, 2025 at 3:30 PM
**Solstice**
10:03am ET — Dec 21, 2025
On this day, Earth's North Pole tips away from the Sun, while the South Pole tips towards it, bringing the first day of Winter to the Northern Hemisphere with increasing daylight, and the first day of Summer to the Southern Hemisphere with decreasing daylight
10:03am ET — Dec 21, 2025
On this day, Earth's North Pole tips away from the Sun, while the South Pole tips towards it, bringing the first day of Winter to the Northern Hemisphere with increasing daylight, and the first day of Summer to the Southern Hemisphere with decreasing daylight
Blue Lives Matter.
December 17, 2025 at 12:00 PM
Blue Lives Matter.
In a world where fewer and fewer people concern themselves with the plight of others, the loss of Rob Reiner, who cared deeply about humanitarian causes, feels that much more devastating. RIP: 1947-1925.
[Selfie: July 2022, NYC]
[Selfie: July 2022, NYC]
December 15, 2025 at 1:52 PM
In a world where fewer and fewer people concern themselves with the plight of others, the loss of Rob Reiner, who cared deeply about humanitarian causes, feels that much more devastating. RIP: 1947-1925.
[Selfie: July 2022, NYC]
[Selfie: July 2022, NYC]
**Free-Range Physics**
An unbound conversation about cosmology and the nature of reality with UK’s @ProfBrianCox.
A @StarTalk Original
[Video: 1h 45m]
www.youtube.com/watch?v=tpWa...
An unbound conversation about cosmology and the nature of reality with UK’s @ProfBrianCox.
A @StarTalk Original
[Video: 1h 45m]
www.youtube.com/watch?v=tpWa...
Are We The Universe’s Way of Knowing Itself? With Brian Cox
YouTube video by StarTalk
www.youtube.com
December 14, 2025 at 5:51 PM
**Free-Range Physics**
An unbound conversation about cosmology and the nature of reality with UK’s @ProfBrianCox.
A @StarTalk Original
[Video: 1h 45m]
www.youtube.com/watch?v=tpWa...
An unbound conversation about cosmology and the nature of reality with UK’s @ProfBrianCox.
A @StarTalk Original
[Video: 1h 45m]
www.youtube.com/watch?v=tpWa...
When I served on the Pentagon's Defense Innovation Board (under part of Obama-2 and all of Trump-1), what impressed me most about the commitment of Military Officers was their sworn allegiance — not to a leader or commander or a king, but to the US Constitution.
December 5, 2025 at 12:41 PM
When I served on the Pentagon's Defense Innovation Board (under part of Obama-2 and all of Trump-1), what impressed me most about the commitment of Military Officers was their sworn allegiance — not to a leader or commander or a king, but to the US Constitution.
Objective truths are still out there. It’s just harder than ever to know what they look like.
What’s Up With That?
[StarTalk video: 15min]
www.youtube.com/watch?v=o4I_...
What’s Up With That?
[StarTalk video: 15min]
www.youtube.com/watch?v=o4I_...
How to Tell What’s Real Online
YouTube video by StarTalk
www.youtube.com
December 4, 2025 at 12:21 PM
Objective truths are still out there. It’s just harder than ever to know what they look like.
What’s Up With That?
[StarTalk video: 15min]
www.youtube.com/watch?v=o4I_...
What’s Up With That?
[StarTalk video: 15min]
www.youtube.com/watch?v=o4I_...
The plots of disaster movies that portray the end of civilization often begin with high-level Government Officials ignoring the warning of scientists.
One of several lesson learned from the 2.5 hour Netflix Documentary — Don’t Look Up (2021).
One of several lesson learned from the 2.5 hour Netflix Documentary — Don’t Look Up (2021).
November 29, 2025 at 8:15 PM
The plots of disaster movies that portray the end of civilization often begin with high-level Government Officials ignoring the warning of scientists.
One of several lesson learned from the 2.5 hour Netflix Documentary — Don’t Look Up (2021).
One of several lesson learned from the 2.5 hour Netflix Documentary — Don’t Look Up (2021).
An author-signed book is one of the most affordable gifts you can give a friend or loved one.
The American Museum of Natural History shop stocks a dozen of my books, pre-signed by me. You’ll pay near-list price or a Black-Friday price, but proceeds go to the Museum.
shop.amnh.org/catalogsearc...
The American Museum of Natural History shop stocks a dozen of my books, pre-signed by me. You’ll pay near-list price or a Black-Friday price, but proceeds go to the Museum.
shop.amnh.org/catalogsearc...
November 28, 2025 at 1:36 PM
An author-signed book is one of the most affordable gifts you can give a friend or loved one.
The American Museum of Natural History shop stocks a dozen of my books, pre-signed by me. You’ll pay near-list price or a Black-Friday price, but proceeds go to the Museum.
shop.amnh.org/catalogsearc...
The American Museum of Natural History shop stocks a dozen of my books, pre-signed by me. You’ll pay near-list price or a Black-Friday price, but proceeds go to the Museum.
shop.amnh.org/catalogsearc...
My annual advice on how to navigate angry arguments during holiday dinners.
[4-min Read]
neildegrassetyson.com/commentary/2...
[4-min Read]
neildegrassetyson.com/commentary/2...
How to Navigate Arguments During Holiday Dinner - Neil deGrasse Tyson
By Neil deGrasse Tyson Social Media — OpEd November 17, 2022 Inspired by the contents of the book
neildegrassetyson.com
November 26, 2025 at 5:57 PM
My annual advice on how to navigate angry arguments during holiday dinners.
[4-min Read]
neildegrassetyson.com/commentary/2...
[4-min Read]
neildegrassetyson.com/commentary/2...
If a foreign adversary snuck into our Federal budget and cut Education and Science Research the way we’re cutting it ourselves — strategically undermining America’s long-term health, wealth, and security — we would likely consider it an act of war.
November 25, 2025 at 1:44 PM
If a foreign adversary snuck into our Federal budget and cut Education and Science Research the way we’re cutting it ourselves — strategically undermining America’s long-term health, wealth, and security — we would likely consider it an act of war.
Every machine in a Hospital that diagnoses your body without cutting you open is based on a principle of Physics, discovered by a Physicist who had no interest in Medicine.
If you think the world doesn’t need Basic Science, or that somehow Science has failed you, think again.
#sciencematters
If you think the world doesn’t need Basic Science, or that somehow Science has failed you, think again.
#sciencematters
November 25, 2025 at 1:40 AM
Every machine in a Hospital that diagnoses your body without cutting you open is based on a principle of Physics, discovered by a Physicist who had no interest in Medicine.
If you think the world doesn’t need Basic Science, or that somehow Science has failed you, think again.
#sciencematters
If you think the world doesn’t need Basic Science, or that somehow Science has failed you, think again.
#sciencematters
Not that anyone asked, but the country with the World's lowest life expectancy (Chad) has a higher life expectancy than the country with the highest life expectancy 120 yrs ago (Sweden).
Think Science and especially Medicine has somehow failed you? Think again.
#ScienceMatters
Think Science and especially Medicine has somehow failed you? Think again.
#ScienceMatters
November 23, 2025 at 8:36 PM
Not that anyone asked, but the country with the World's lowest life expectancy (Chad) has a higher life expectancy than the country with the highest life expectancy 120 yrs ago (Sweden).
Think Science and especially Medicine has somehow failed you? Think again.
#ScienceMatters
Think Science and especially Medicine has somehow failed you? Think again.
#ScienceMatters
The way things are going lately, looks like I may need to re-post some of my societal observations from earlier this year.
Stay tuned for their reprise...
Stay tuned for their reprise...
November 23, 2025 at 8:23 PM
The way things are going lately, looks like I may need to re-post some of my societal observations from earlier this year.
Stay tuned for their reprise...
Stay tuned for their reprise...
Massive explosions on the Sun leading to Aurora on Earth. Hayden Planetarium Associate Joe Rao has the latest...
www.facebook.com/photo/?fbid=...
www.facebook.com/photo/?fbid=...
Redirecting...
www.facebook.com
November 12, 2025 at 8:29 PM
Massive explosions on the Sun leading to Aurora on Earth. Hayden Planetarium Associate Joe Rao has the latest...
www.facebook.com/photo/?fbid=...
www.facebook.com/photo/?fbid=...
Neil deGrasse Tyson Eats the Super Moon
YouTube video by StarTalk
www.youtube.com
October 7, 2025 at 3:58 PM
Notice to flat-Earthers in Earth's Eastern Hemisphere witnessing a Total Lunar Eclipse right now
Once again, please alert the authorities if your eclipse tonight looks like this:
Once again, please alert the authorities if your eclipse tonight looks like this:
September 7, 2025 at 5:51 PM
Notice to flat-Earthers in Earth's Eastern Hemisphere witnessing a Total Lunar Eclipse right now
Once again, please alert the authorities if your eclipse tonight looks like this:
Once again, please alert the authorities if your eclipse tonight looks like this: