Neil deGrasse Tyson

All Photos 18 hours ago
Cute cat videos go viral instantly. Nearly seven billion smart phones in the world. Imagine video of an extraterrestrial ship landing, with aliens disembarking. I’m thinking that would go viral too.
I’m thinking that if Space Aliens were actively visiting Earth from across the galaxy, we would not need Congressional Hearings to establish this fact. Just sayin’.
Lunar eclipses occur on average every two or three years and are visible to all the billions of people who can see the Moon when it happens. So, contrary to what you may have been told, lunar eclipses are not rare.
Lunar eclipses are so un-spectacular that if nobody told you what was happening to the Moon you’d probably not notice at all. Just sayin’.
Unlike solar eclipses, which are location-dependent, everyone on the side of Earth facing the full Moon (i.e. the Sun has set for you) can witness a lunar eclipse.
Decades ago, when there was more air pollution, sunsets were often beet-red. That color would refract into Earth’s shadow in space tinting the fully eclipsed Moon. Haven’t seen that effect in years. The Moon more commonly goes dark, leaving nothing “bloody” about the Blood Moon
Dear Earthlings currently in darkness: Right about now, the full Moon is passing into Earth’s conical shadow in space. The event is long and boring, lasting 3.5 hours. For the middle 84 minutes, the Moon is all but fully darkened as it enters the deepest part of Earth’s shadow.
Just created my own Tesseract portal. But don't tell anybody.
If interested… Some thoughts on Abortion [600 words]…
May the 4th be with you.
If a human bites a Vampire then shouldn’t the Vampire turn back into a human? And while we’re at it, if a human bites a Zombie shouldn’t it cure the Zombie too?
I don't know anyone who drinks liquids from cups with holes in their bottoms. So you are describing a different world.…
If you watched the glass long enough (over days) you will see the level slowly drop as the water evaporates from its surface. That counts as half-empty.…
If you are filling a glass and reach the halfway point, it’s half-full. If you are emptying a glass and reach the halfway point, it’s half-empty. No need to invoke your emotional state.
If every day were #EarthDay we wouldn’t be in the mess we’re in.
We talked about science in bad movies. Was a guffaw a minute. How I'll always remember him: Smart. Funny. Curious. With a childlike amusement of all that makes you laugh. Gilbert Gottfried, RIH (rest in humor) Feb 1955 - April 2022. [Audio: 1h 37m]…
With a telescope, the Moon is best viewed during other phases, especially half-moon, in which the craters and mountains cast their longest shadows. Cool Lamp.…
Saturday, April 16, 2022 Full Moon today — the first one after the March Equinox. The Sunday following that Full Moon is, by definition, Easter. This rule precludes solar eclipses from ever taking place on Easter Sunday.
Hard time comprehending the universe? Just remember that it’s actually above everyone’s head.
Looks like some parts of the World need more Sunflowers — again. ⠀⠀⠀⠀ [Vincent van Gogh styled image of a Sunflower field. Mixed Media by David Pyatt]…
@neiltyson @NCAA Maybe it's to reduce Canadian confusion. "N-C-A, eh?" ..."Eh!!" 😆
Retweeted by Neil deGrasse Tyson
Not that anybody inquired, but to say the individual letters “N-C-A-A” (as in @NCAA) uses fewer syllables than to say “N-C-double-A”. So to utter “double-A” does not save you time.
A reminder… Eighty years ago the city of Leningrad was under siege for 900 days. The Nazis severed all supply chains into the city and pummeled the infrastructure, ultimately leaving a million Russian civilians dead. Meanwhile……
Last I checked, the rest of the Universe was in good shape. It’s Earth that’s got all the problems.
The exact Rainbow any of us sees is entirely our own — a personal, yet communal gift from the laws of optics. That’s why Rainbows are **always** face-on. You’ve never seen one at an angle, which forever protects the Pot of Gold hidden at it base.
"It Ain't Easy Being Green” -Kermit the Frog…
By the 1920s the mysterious, Green-emitting space element "nebulium was ID'ed as oxygen, but behaving oddly in the rarefied conditions of space.
Mid-19th century, a mysterious element was discovered in space nebulae. It emits deep Green, and was dubbed “nebulium."
Rarefied gas just might be Irish: The element oxygen, in Aurora and in the near-vacuum conditions of space, radiates pure Green.
Stars are not Irish: The laws of radiative physics conspire in such a way that there are no Green stars in the Universe. They come in three basic colors: Reddish, White, & Blueish.
We think of US paper money as being Green. But face-side ink is primarily black. So instead of "Greenbacks" it could legitimately be called "Blackfronts"
Curiously, light-loving Green plants reject the Sun's Green light, reflecting it back at you, which is why they look Green.
The "Green” movement might be misnamed. Experiments show that increased CO2 promotes photosynthesis, making plants grow faster.
Odd that drivers of fuel efficient cars often get more Green-praise than people who chose to live where they can walk to work.
From a rainbow, Green is Roy G. Biv's middle name. Red Orange Yellow GREEN Blue Indigo Violet.
From the Archives: Between scenes, in socks on the slippery smooth Green-Screen that would become the Cosmic Calendar. “Cosmos A Spacetime Odyssey” (2014). [Video: 10 sec]
From the Archives: Receiving Green Screen Instructions from Bill Pope, the Director of Photography for “Cosmos: A Spacetime Odyssey” (2014).
I hear that the Credible Hulk, also Green, was instead exposed to rays of Objective Truths.
The Hulk is Green from a potent, accidental dose of Gamma Rays. Actually, Bruce Banner would have died within days from organ failure.
A reminder that Kryptonite, the only substance in the universe that can injure or kill Superman, is Green.
If human blood used Copper instead of Iron, turning it Green, I wonder what color we would have made stop lights & stop signs.
Lobsters (and Vulcans) use copper instead of iron in their blood. Oxidized copper confers a Green tinge.
Our eyes are about 10x more sensitive to Green light than Red. So watt-for-watt, Green lasers look much brighter than Red ones.
The peak sensitivity of the Human Retina is Green, evolved to match the peak spectral output of the Sun.
The Sun emits more Green light than any other band of light in the rainbow.
A cosmic romance on the color GREEN follows shortly…
Some educators who are quick to say, "These students just don't want to learn" should instead say to themselves, "Maybe I suck at my job."
FYI: That was all the Pi that Twitter could handle.
What scientists know about the world is mind-blowing. What the public thinks scientists don’t know about the world is alarming.
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