Ethan Siegel
@startswithabang.bsky.social
Cosmologist, science communicator, author, speaker, and longtime writer of Starts With A Bang.
Not the next Carl Sagan; the first Ethan Siegel.
Not the next Carl Sagan; the first Ethan Siegel.
How far back in time can the naked eye see?
To see back in the Universe farther than ever before, we need large, powerful telescopes.
But the naked eye, if you look just right, can take you impressively far.
bigthink.com/starts-with-...
#space #astro #cosmology
To see back in the Universe farther than ever before, we need large, powerful telescopes.
But the naked eye, if you look just right, can take you impressively far.
bigthink.com/starts-with-...
#space #astro #cosmology
How far back in time can the naked eye see?
Every observation out into deep space is also a look back in time.
bigthink.com
November 24, 2025 at 4:40 PM
How far back in time can the naked eye see?
To see back in the Universe farther than ever before, we need large, powerful telescopes.
But the naked eye, if you look just right, can take you impressively far.
bigthink.com/starts-with-...
#space #astro #cosmology
To see back in the Universe farther than ever before, we need large, powerful telescopes.
But the naked eye, if you look just right, can take you impressively far.
bigthink.com/starts-with-...
#space #astro #cosmology
Is there really a “dark side” of the Moon?
#AskEthan
The phrase "dark side of the Moon" used to refer to the Moon's unseen, away-facing side: the far side.
But there is a "dark side" after all, just not where you'd expect.
bigthink.com/starts-with-...
#space #astro #moon
#AskEthan
The phrase "dark side of the Moon" used to refer to the Moon's unseen, away-facing side: the far side.
But there is a "dark side" after all, just not where you'd expect.
bigthink.com/starts-with-...
#space #astro #moon
Ask Ethan: Is there really a "dark side" of the Moon?
One side of the Moon always faces us: the near side. The "dark side" of the Moon began as a mere metaphor, but today, science can weigh in.
bigthink.com
November 21, 2025 at 4:34 PM
Is there really a “dark side” of the Moon?
#AskEthan
The phrase "dark side of the Moon" used to refer to the Moon's unseen, away-facing side: the far side.
But there is a "dark side" after all, just not where you'd expect.
bigthink.com/starts-with-...
#space #astro #moon
#AskEthan
The phrase "dark side of the Moon" used to refer to the Moon's unseen, away-facing side: the far side.
But there is a "dark side" after all, just not where you'd expect.
bigthink.com/starts-with-...
#space #astro #moon
Ethan, can you make a one hour presentation about The Grand Cosmic Story, and can we watch it irrespective of whether we buy your newest book or not?
www.youtube.com/watch?v=loCt...
Thanks to OMSI and the Rose City Astronomers for hosting me and letting me give this epic talk!
#space #astro
www.youtube.com/watch?v=loCt...
Thanks to OMSI and the Rose City Astronomers for hosting me and letting me give this epic talk!
#space #astro
RCA General Meeting November 17, 2025
YouTube video by Rose City Astronomers
www.youtube.com
November 20, 2025 at 11:00 PM
Ethan, can you make a one hour presentation about The Grand Cosmic Story, and can we watch it irrespective of whether we buy your newest book or not?
www.youtube.com/watch?v=loCt...
Thanks to OMSI and the Rose City Astronomers for hosting me and letting me give this epic talk!
#space #astro
www.youtube.com/watch?v=loCt...
Thanks to OMSI and the Rose City Astronomers for hosting me and letting me give this epic talk!
#space #astro
Either let us scan your private emails for AI training or we'll revert to hotmail circa 2000.
Enshittification of everything that was once good intensifies.
Enshittification of everything that was once good intensifies.
If you use GMail, AI (Gemini) was turned on yesterday by default and now scans all of your content for machine learning. To turn off, go to Settings>General and scroll down. Uncheck the box for "Smart features."
There's other "Smart" add-ons as well, but that's the one that reads your content.
There's other "Smart" add-ons as well, but that's the one that reads your content.
November 20, 2025 at 8:52 PM
Either let us scan your private emails for AI training or we'll revert to hotmail circa 2000.
Enshittification of everything that was once good intensifies.
Enshittification of everything that was once good intensifies.
Ring galaxies, the rarest galaxy type of all, are finally understood
Only about 1-in-10,000 galaxies are ring galaxies, with an old, red nucleus and a young, blue ring surrounding it.
The mystery of their formation has finally been solved.
bigthink.com/starts-with-...
#space #astro #galaxies #ring
Only about 1-in-10,000 galaxies are ring galaxies, with an old, red nucleus and a young, blue ring surrounding it.
The mystery of their formation has finally been solved.
bigthink.com/starts-with-...
#space #astro #galaxies #ring
Ring galaxies, the rarest galaxy type of all, are finally understood
Spirals, ellipticals, and irregulars are all more common than ring galaxies. At last, we know how these ultra-rare objects are made.
bigthink.com
November 20, 2025 at 4:46 PM
Ring galaxies, the rarest galaxy type of all, are finally understood
Only about 1-in-10,000 galaxies are ring galaxies, with an old, red nucleus and a young, blue ring surrounding it.
The mystery of their formation has finally been solved.
bigthink.com/starts-with-...
#space #astro #galaxies #ring
Only about 1-in-10,000 galaxies are ring galaxies, with an old, red nucleus and a young, blue ring surrounding it.
The mystery of their formation has finally been solved.
bigthink.com/starts-with-...
#space #astro #galaxies #ring
Bluesky for #physics seems like the right place to make this ask, so...
Does anyone have (or can get) and want to send me a PDF copy of John Ralston's 2018 book on Quantum Mechanics: iopscience.iop.org/book/mono/97...
Thank you!
Does anyone have (or can get) and want to send me a PDF copy of John Ralston's 2018 book on Quantum Mechanics: iopscience.iop.org/book/mono/97...
Thank you!
How to Understand Quantum Mechanics - Book - IOPscience
iopscience.iop.org
November 19, 2025 at 6:45 PM
Bluesky for #physics seems like the right place to make this ask, so...
Does anyone have (or can get) and want to send me a PDF copy of John Ralston's 2018 book on Quantum Mechanics: iopscience.iop.org/book/mono/97...
Thank you!
Does anyone have (or can get) and want to send me a PDF copy of John Ralston's 2018 book on Quantum Mechanics: iopscience.iop.org/book/mono/97...
Thank you!
How are redshift, temperature, distance and time related?
As the Universe expands, the relationship between redshift, distance, and time becomes anything but trivial.
Here in the 21st century, though, we've finally figured it out.
bigthink.com/starts-with-...
#space #astro #cosmology
As the Universe expands, the relationship between redshift, distance, and time becomes anything but trivial.
Here in the 21st century, though, we've finally figured it out.
bigthink.com/starts-with-...
#space #astro #cosmology
How are redshift, temperature, distance and time related?
Wavelengths stretch, distances grow, and temperatures cool as the Universe expands with time. How are the various cosmic parameters related?
bigthink.com
November 19, 2025 at 4:52 PM
How are redshift, temperature, distance and time related?
As the Universe expands, the relationship between redshift, distance, and time becomes anything but trivial.
Here in the 21st century, though, we've finally figured it out.
bigthink.com/starts-with-...
#space #astro #cosmology
As the Universe expands, the relationship between redshift, distance, and time becomes anything but trivial.
Here in the 21st century, though, we've finally figured it out.
bigthink.com/starts-with-...
#space #astro #cosmology
Ugh, I hate that I'm in here.
I don't even want the money.
I want the slop and the plagiarism to stop.
I don't even want the money.
I want the slop and the plagiarism to stop.
Hey authors! Check to see if Anthropic stole your book to train their slop generator on. You’re entitled to $1500 per stolen Work.
Look up your work, and if you’re in the database, file a claim
secure.anthropiccopyrightsettlement.com/lookup/
Look up your work, and if you’re in the database, file a claim
secure.anthropiccopyrightsettlement.com/lookup/
Submit a Claim
secure.anthropiccopyrightsettlement.com
November 19, 2025 at 3:46 AM
Ugh, I hate that I'm in here.
I don't even want the money.
I want the slop and the plagiarism to stop.
I don't even want the money.
I want the slop and the plagiarism to stop.
Jellyfish and bunny ear galaxies have cosmic consequences
Some galaxies have jellyfish-like tentacles, and some have two prominent "bunny ears" attached to the main disk.
They aren't just fascinating; they create the intracluster light.
bigthink.com/starts-with-...
#space #astronomy #astro
Some galaxies have jellyfish-like tentacles, and some have two prominent "bunny ears" attached to the main disk.
They aren't just fascinating; they create the intracluster light.
bigthink.com/starts-with-...
#space #astronomy #astro
Jellyfish and bunny ear galaxies have cosmic consequences
Weird-looking galaxies, with tentacle-like tails or prominent dual streams, appear like jellyfish or bunny ears. But that’s just the start.
bigthink.com
November 18, 2025 at 5:18 PM
Jellyfish and bunny ear galaxies have cosmic consequences
Some galaxies have jellyfish-like tentacles, and some have two prominent "bunny ears" attached to the main disk.
They aren't just fascinating; they create the intracluster light.
bigthink.com/starts-with-...
#space #astronomy #astro
Some galaxies have jellyfish-like tentacles, and some have two prominent "bunny ears" attached to the main disk.
They aren't just fascinating; they create the intracluster light.
bigthink.com/starts-with-...
#space #astronomy #astro
The decline and fall of stars in the Universe
The cosmic star-formation rate rose and rose for billions of years, peaking about 10-11 billion years ago.
Today, it's slowed to a trickle, and someday, will cease altogether.
bigthink.com/starts-with-...
#space #astro #astronomy #stars
The cosmic star-formation rate rose and rose for billions of years, peaking about 10-11 billion years ago.
Today, it's slowed to a trickle, and someday, will cease altogether.
bigthink.com/starts-with-...
#space #astro #astronomy #stars
The decline and fall of stars in the Universe
For over 10 billion years, the cosmic star-formation rate has been dropping and dropping. Someday, the final star in the Universe will die.
bigthink.com
November 17, 2025 at 5:18 PM
The decline and fall of stars in the Universe
The cosmic star-formation rate rose and rose for billions of years, peaking about 10-11 billion years ago.
Today, it's slowed to a trickle, and someday, will cease altogether.
bigthink.com/starts-with-...
#space #astro #astronomy #stars
The cosmic star-formation rate rose and rose for billions of years, peaking about 10-11 billion years ago.
Today, it's slowed to a trickle, and someday, will cease altogether.
bigthink.com/starts-with-...
#space #astro #astronomy #stars
How can we better measure G, the gravitational constant?
#AskEthan
The universal gravitational constant, G, is one of the oldest fundamental constant of all, and yet, one of the least well-measured.
Can measuring it from space help?
bigthink.com/starts-with-...
#space #physics #astro
#AskEthan
The universal gravitational constant, G, is one of the oldest fundamental constant of all, and yet, one of the least well-measured.
Can measuring it from space help?
bigthink.com/starts-with-...
#space #physics #astro
Ask Ethan: How can we better measure G, the gravitational constant?
We first measured G, the gravitational constant, back in the 18th century. As the least well-known fundamental constant, can it be improved?
bigthink.com
November 14, 2025 at 8:04 AM
How can we better measure G, the gravitational constant?
#AskEthan
The universal gravitational constant, G, is one of the oldest fundamental constant of all, and yet, one of the least well-measured.
Can measuring it from space help?
bigthink.com/starts-with-...
#space #physics #astro
#AskEthan
The universal gravitational constant, G, is one of the oldest fundamental constant of all, and yet, one of the least well-measured.
Can measuring it from space help?
bigthink.com/starts-with-...
#space #physics #astro
Light and gravity travel at the same speed, but don’t arrive together
Yes, light waves and gravitational waves travel at exactly the same speed.
But when cosmic events create both at the same time, they don't arrive together.
Here's why.
bigthink.com/starts-with-...
#astro #space #gravity #light
Yes, light waves and gravitational waves travel at exactly the same speed.
But when cosmic events create both at the same time, they don't arrive together.
Here's why.
bigthink.com/starts-with-...
#astro #space #gravity #light
Light and gravity travel at the same speed, but don't arrive together
In 2017, a kilonova sent light and gravitational waves across the Universe. Here on Earth, there was a 1.7 second signal arrival delay. Why?
bigthink.com
November 13, 2025 at 5:57 PM
Light and gravity travel at the same speed, but don’t arrive together
Yes, light waves and gravitational waves travel at exactly the same speed.
But when cosmic events create both at the same time, they don't arrive together.
Here's why.
bigthink.com/starts-with-...
#astro #space #gravity #light
Yes, light waves and gravitational waves travel at exactly the same speed.
But when cosmic events create both at the same time, they don't arrive together.
Here's why.
bigthink.com/starts-with-...
#astro #space #gravity #light
The devious trick behind the most sensational science headlines
Sick of sensationalistic science headlines that promise revolutions, but that don't pan out?
Here's what's wrong with science news, and why you keep seeing those dubious stories.
bigthink.com/starts-with-...
#space #physics #news
Sick of sensationalistic science headlines that promise revolutions, but that don't pan out?
Here's what's wrong with science news, and why you keep seeing those dubious stories.
bigthink.com/starts-with-...
#space #physics #news
The devious trick behind the most sensational science headlines
Dark matter, dark energy, and the Big Bang are all part of a solid scientific foundation. Here's why popular media often claims otherwise.
bigthink.com
November 12, 2025 at 5:00 PM
The devious trick behind the most sensational science headlines
Sick of sensationalistic science headlines that promise revolutions, but that don't pan out?
Here's what's wrong with science news, and why you keep seeing those dubious stories.
bigthink.com/starts-with-...
#space #physics #news
Sick of sensationalistic science headlines that promise revolutions, but that don't pan out?
Here's what's wrong with science news, and why you keep seeing those dubious stories.
bigthink.com/starts-with-...
#space #physics #news
Astronomy’s first gap-clearing planet fills in our “missing link”
We've seen protoplanetary disks with gaps, and fully mature systems with directly imaged planets.
For the first time, we've found them together: a disk-gap with an exoplanet inside.
bigthink.com/starts-with-...
#space #astro #planet
We've seen protoplanetary disks with gaps, and fully mature systems with directly imaged planets.
For the first time, we've found them together: a disk-gap with an exoplanet inside.
bigthink.com/starts-with-...
#space #astro #planet
Astronomy's first gap-clearing planet fills in our "missing link"
Planets grow from protostellar material in disks, leading to full-grown planetary systems in time. At last, the final gap has been filled.
bigthink.com
November 11, 2025 at 5:01 PM
Astronomy’s first gap-clearing planet fills in our “missing link”
We've seen protoplanetary disks with gaps, and fully mature systems with directly imaged planets.
For the first time, we've found them together: a disk-gap with an exoplanet inside.
bigthink.com/starts-with-...
#space #astro #planet
We've seen protoplanetary disks with gaps, and fully mature systems with directly imaged planets.
For the first time, we've found them together: a disk-gap with an exoplanet inside.
bigthink.com/starts-with-...
#space #astro #planet
How the “meter” came to be exactly one meter long
In the search for a universal standard of distance, scientists have defined and redefined the meter over and over again.
After centuries of change, this 1983 definition should last forever.
bigthink.com/starts-with-...
#physics #measure #meter
In the search for a universal standard of distance, scientists have defined and redefined the meter over and over again.
After centuries of change, this 1983 definition should last forever.
bigthink.com/starts-with-...
#physics #measure #meter
How the "meter" came to be exactly one meter long
Until the late 20th century, there wasn't a truly universal standard. Under our current definition, everyone agrees on what "one meter" is.
bigthink.com
November 10, 2025 at 4:55 PM
How the “meter” came to be exactly one meter long
In the search for a universal standard of distance, scientists have defined and redefined the meter over and over again.
After centuries of change, this 1983 definition should last forever.
bigthink.com/starts-with-...
#physics #measure #meter
In the search for a universal standard of distance, scientists have defined and redefined the meter over and over again.
After centuries of change, this 1983 definition should last forever.
bigthink.com/starts-with-...
#physics #measure #meter
Starts With A Bang podcast #123 – Alien physics
Do aliens speak the same physics that we do?
@danielwhiteson.bsky.social argues, in his new book and in this fascinating episode, that no, they probably don't.
I disagree; listen to the intense interview here!
bigthink.com/starts-with-...
#aliens
Do aliens speak the same physics that we do?
@danielwhiteson.bsky.social argues, in his new book and in this fascinating episode, that no, they probably don't.
I disagree; listen to the intense interview here!
bigthink.com/starts-with-...
#aliens
Starts With A Bang podcast #123 - Alien physics
Do aliens speak the same physics that we do, with similar laws, observables, and underlying mathematics. Maybe not, argues Daniel Whiteson.
bigthink.com
November 8, 2025 at 4:42 PM
Starts With A Bang podcast #123 – Alien physics
Do aliens speak the same physics that we do?
@danielwhiteson.bsky.social argues, in his new book and in this fascinating episode, that no, they probably don't.
I disagree; listen to the intense interview here!
bigthink.com/starts-with-...
#aliens
Do aliens speak the same physics that we do?
@danielwhiteson.bsky.social argues, in his new book and in this fascinating episode, that no, they probably don't.
I disagree; listen to the intense interview here!
bigthink.com/starts-with-...
#aliens
Can Weber bars detect gravitational waves?
#AskEthan
Starting with 2015's first gravitational wave detection, LIGO/Virgo/KAGRA have now seen hundreds of gravitational waves.
Could the original detector design, Weber bars, work today?
bigthink.com/starts-with-...
#space #astro #physics #weber
#AskEthan
Starting with 2015's first gravitational wave detection, LIGO/Virgo/KAGRA have now seen hundreds of gravitational waves.
Could the original detector design, Weber bars, work today?
bigthink.com/starts-with-...
#space #astro #physics #weber
Ask Ethan: Can Weber bars detect gravitational waves?
We've now detected hundreds of gravitational waves with LIGO, Virgo, and KAGRA. What if we tried Weber's original method in the modern day?
bigthink.com
November 7, 2025 at 4:52 PM
Our first terraforming goal should be the Moon, not Mars
When we speak about terraforming, Mars is usually the prime target.
But the Moon, due to its proximity, Earth-like soil, and much much more, is a far superior first target.
bigthink.com/starts-with-...
#space #moon #astro #terraforming
When we speak about terraforming, Mars is usually the prime target.
But the Moon, due to its proximity, Earth-like soil, and much much more, is a far superior first target.
bigthink.com/starts-with-...
#space #moon #astro #terraforming
Our first terraforming goal should be the Moon, not Mars
The first world beyond Earth for human habitability should be the Moon, not Mars. This is why we should terraform our lunar neighbor first.
bigthink.com
November 6, 2025 at 4:47 PM
Our first terraforming goal should be the Moon, not Mars
When we speak about terraforming, Mars is usually the prime target.
But the Moon, due to its proximity, Earth-like soil, and much much more, is a far superior first target.
bigthink.com/starts-with-...
#space #moon #astro #terraforming
When we speak about terraforming, Mars is usually the prime target.
But the Moon, due to its proximity, Earth-like soil, and much much more, is a far superior first target.
bigthink.com/starts-with-...
#space #moon #astro #terraforming
How to understand Einstein’s relativity without math
Relativity is so much more than just the math of the Lorentz transformations.
It's a profound new way of looking at the world: one that you can learn to intuit for yourself.
bigthink.com/starts-with-...
#space #astro #physics #relativity
Relativity is so much more than just the math of the Lorentz transformations.
It's a profound new way of looking at the world: one that you can learn to intuit for yourself.
bigthink.com/starts-with-...
#space #astro #physics #relativity
How to understand Einstein's relativity without math
Times dilate and lengths contract near the speed of light. Bizarre and confusing? Sure. But under relativity, it can't be any other way.
bigthink.com
November 5, 2025 at 4:25 PM
How to understand Einstein’s relativity without math
Relativity is so much more than just the math of the Lorentz transformations.
It's a profound new way of looking at the world: one that you can learn to intuit for yourself.
bigthink.com/starts-with-...
#space #astro #physics #relativity
Relativity is so much more than just the math of the Lorentz transformations.
It's a profound new way of looking at the world: one that you can learn to intuit for yourself.
bigthink.com/starts-with-...
#space #astro #physics #relativity
Astounding stream of stars caught escaping from nearby galaxy
The Vera Rubin Observatory's "First Look" observations weren't meant for science.
And yet, it revealed a surprising new stellar stream, 160,000 light-years long, escaping from a nearby galaxy.
bigthink.com/starts-with-...
#space #astro
The Vera Rubin Observatory's "First Look" observations weren't meant for science.
And yet, it revealed a surprising new stellar stream, 160,000 light-years long, escaping from a nearby galaxy.
bigthink.com/starts-with-...
#space #astro
Astounding stream of stars caught escaping from nearby galaxy
Stellar streams are faint trails of stars that appear to "stream" out of galaxies. A new one, escaping galaxy M61, may point to many others.
bigthink.com
November 4, 2025 at 4:51 PM
Astounding stream of stars caught escaping from nearby galaxy
The Vera Rubin Observatory's "First Look" observations weren't meant for science.
And yet, it revealed a surprising new stellar stream, 160,000 light-years long, escaping from a nearby galaxy.
bigthink.com/starts-with-...
#space #astro
The Vera Rubin Observatory's "First Look" observations weren't meant for science.
And yet, it revealed a surprising new stellar stream, 160,000 light-years long, escaping from a nearby galaxy.
bigthink.com/starts-with-...
#space #astro
Fascism has 14 early warning signs, as elucidated by fascism scholar Laurence W. Britt.
In May of this year, the US exhibited "only" 12 of them, as we still lacked a censored press and fraudulent elections.
We're up to 13 on the eve of election day.
Because if you tell the truth, this happens.
In May of this year, the US exhibited "only" 12 of them, as we still lacked a censored press and fraudulent elections.
We're up to 13 on the eve of election day.
Because if you tell the truth, this happens.
November 3, 2025 at 10:44 PM
Fascism has 14 early warning signs, as elucidated by fascism scholar Laurence W. Britt.
In May of this year, the US exhibited "only" 12 of them, as we still lacked a censored press and fraudulent elections.
We're up to 13 on the eve of election day.
Because if you tell the truth, this happens.
In May of this year, the US exhibited "only" 12 of them, as we still lacked a censored press and fraudulent elections.
We're up to 13 on the eve of election day.
Because if you tell the truth, this happens.
The Red Spider Nebula gets its JWST glow-up
The US Government may still be shut down, preventing NASA from releasing, well, anything.
Good thing the ESA, a #JWST partner, is still functioning, because now we get to see this.
bigthink.com/starts-with-...
#space #astronomy #astro #science #physics
The US Government may still be shut down, preventing NASA from releasing, well, anything.
Good thing the ESA, a #JWST partner, is still functioning, because now we get to see this.
bigthink.com/starts-with-...
#space #astronomy #astro #science #physics
The Red Spider Nebula gets its JWST glow-up
When dying, Sun-like stars have binary companions, spectacular sights arise from the ionization. JWST spots the Red Spider Nebula in action!
bigthink.com
November 3, 2025 at 5:38 PM
The Red Spider Nebula gets its JWST glow-up
The US Government may still be shut down, preventing NASA from releasing, well, anything.
Good thing the ESA, a #JWST partner, is still functioning, because now we get to see this.
bigthink.com/starts-with-...
#space #astronomy #astro #science #physics
The US Government may still be shut down, preventing NASA from releasing, well, anything.
Good thing the ESA, a #JWST partner, is still functioning, because now we get to see this.
bigthink.com/starts-with-...
#space #astronomy #astro #science #physics
Happy Halloween 2025 everyone, from your old pal Zorak!
October 31, 2025 at 5:16 PM
Happy Halloween 2025 everyone, from your old pal Zorak!
Could evolving dark energy lead to a Big Crunch?
#AskEthan
It looks like dark energy *may* be evolving in our Universe, as recent DESI data suggests.
But implying that we're headed for a Big Crunch completely oversells what we know.
bigthink.com/starts-with-...
#space #astro #darkenergy
#AskEthan
It looks like dark energy *may* be evolving in our Universe, as recent DESI data suggests.
But implying that we're headed for a Big Crunch completely oversells what we know.
bigthink.com/starts-with-...
#space #astro #darkenergy
Ask Ethan: Could evolving dark energy lead to a Big Crunch?
There's some, but not overwhelming, evidence that dark energy is evolving. What would it take for a "Big Crunch" to be our cosmic fate?
bigthink.com
October 31, 2025 at 4:17 PM
Could evolving dark energy lead to a Big Crunch?
#AskEthan
It looks like dark energy *may* be evolving in our Universe, as recent DESI data suggests.
But implying that we're headed for a Big Crunch completely oversells what we know.
bigthink.com/starts-with-...
#space #astro #darkenergy
#AskEthan
It looks like dark energy *may* be evolving in our Universe, as recent DESI data suggests.
But implying that we're headed for a Big Crunch completely oversells what we know.
bigthink.com/starts-with-...
#space #astro #darkenergy
Reposted by Ethan Siegel
Why the whole isn't greater than the sum of its parts | Ethan Siegel @startswithabang.bsky.social
If the list of things science can’t explain keeps shrinking…should we stop creating gods to fill the gaps?
If the list of things science can’t explain keeps shrinking…should we stop creating gods to fill the gaps?
October 30, 2025 at 4:05 PM
Why the whole isn't greater than the sum of its parts | Ethan Siegel @startswithabang.bsky.social
If the list of things science can’t explain keeps shrinking…should we stop creating gods to fill the gaps?
If the list of things science can’t explain keeps shrinking…should we stop creating gods to fill the gaps?