David M. Ewalt's Avatar

David M. Ewalt

@dme.bsky.social

Editor in Chief, Scientific American. Author of 'Of Dice and Men' & 'Defying Reality.' I drop bombs and drop science. https://www.davidmewalt.com/

628 Followers  |  179 Following  |  50 Posts  |  Joined: 27.06.2023  |  1.4515

Latest posts by dme.bsky.social on Bluesky

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The Hubble Space Telescope is old, but itโ€™s far from busted The venerable Hubble observatory is going strong despite its decades in space and the advent of next-generation successors

The venerable Hubble observatory is going strong despite its decades in space and the advent of next-generation successors

30.01.2026 14:16 โ€” ๐Ÿ‘ 54    ๐Ÿ” 8    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1
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The Schrรถdinger equation is getting a glow-up for its 100th birthday A century ago, Erwin Schrรถdinger came up with an equation that says how the quantum world behaves. Now scientists are asking what happens when the observer is part of that world

Now on @sciam.bsky.social: The Schrรถdinger equation just turned 100, but that doesnโ€™t mean quantum physicists have solved all its mysteries. Chief among them: What, exactly, does it mean to incorporate observers into the gnarly math? By Joseph Howlett.

www.scientificamerican.com/article/the-...

28.01.2026 17:20 โ€” ๐Ÿ‘ 17    ๐Ÿ” 6    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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In Florida, the temperatures are plummeting. Iguanas might do so, too Floridaโ€™s iguanas are an introduced species, and they arenโ€™t used to the chilly temperatures the state is currently experiencing

โ€œThese tropical lizards were experiencing conditions that theyโ€™ve never experienced in their entire evolutionary history before, tens of millions of yearsโ€

16.01.2026 19:32 โ€” ๐Ÿ‘ 826    ๐Ÿ” 230    ๐Ÿ’ฌ 43    ๐Ÿ“Œ 22
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Watch Scientific American's Favorite Science Videos of 2025 On TikTok and other short-form video platforms, Scientific American explored the underground labs of Greenland, brand-new colors and the perfect way to make eggs

www.scientificamerican.com/article/our-...

24.12.2025 13:15 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
A person standing outside a door with a sign that says "under construction"

A person standing outside a door with a sign that says "under construction"

Look how excited I am to get a sneak peek of the Public Science Common at @museumofscience.bsky.social! It's super secret inside so no pictures, but this is going to be an incredible space for live events and science education. I can't wait for collaborations with @sciam.bsky.socia... stay tuned!

04.12.2025 00:35 โ€” ๐Ÿ‘ 17    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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Which Thanksgiving Pie Gives You the Biggest Sugar Rush? Scientific American asked experts which type of Thanksgiving pie spikes blood sugar the mostโ€”and how to eat healthier while still enjoying the holidays

Science says eat more pie: ๐Ÿงช www.scientificamerican.com/article/whic...

25.11.2025 15:01 โ€” ๐Ÿ‘ 36    ๐Ÿ” 12    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1
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The @sciam.bsky.social 2025 Nonfiction Panel at @greenlightbklyn.bsky.social was a smashing success! Thanks to authors Marguerite Holloway, Maris Kreizman, Nathan Lent, and Kate Marvel, and our host Brianne Kane!

21.11.2025 01:48 โ€” ๐Ÿ‘ 9    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I don't have the numbers yet for the 20 year send. But at the 10 year mark the bounce rate was low, something like 6-7%. I expect the larger issue is mail going into abandoned mailboxes, other than the address or server being dead entirely

17.11.2025 19:35 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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The Mind-Bending Challenge of Warning Future Humans about Nuclear Waste Designing nuclear-waste repositories is part engineering, part anthropologyโ€”and part mythmaking

Designing nuclear-waste repositories is part engineering, part anthropologyโ€”and part mythmaking

17.11.2025 15:48 โ€” ๐Ÿ‘ 18    ๐Ÿ” 5    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 1
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U.S. Spy Agency Releases Amelia Earhart Records The U.S. Office of the Director of National Intelligence released long-promised records related to vanished pioneering aviator Amelia Earhart. More records are promised on a rolling basis

U.S. Spy Agency Releases Amelia Earhart Records

The U.S. Office of the Director of National Intelligence released long-promised records related to vanished pioneering aviator Amelia Earhart. More records are promised on a rolling basis

www.scientificamerican.com/article/amel...

14.11.2025 22:29 โ€” ๐Ÿ‘ 3    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Innovations In: Type 1 Diabetes This special report explores the global burden of type 1 diabetes, along with incredible innovations that are leading to better treatments and care and a potential cure

This special report explores the global burden of type 1 diabetesโ€”and the incredible innovations driving better treatments, better care, and the possibility of a cure.

14.11.2025 17:15 โ€” ๐Ÿ‘ 19    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Man With Tick-Borne Meat Allergy Dies after Eating Burger Lone star tick bites are the most common cause of alpha-gal syndrome, which causes severe allergic reactions to red meat

True nightmare fuel: Scientists just confirmed the first known death from a severe meat allergy caused by a tick bite.

The man, who died in 2024 after eating a burger, had alpha-gal syndrome, a bizarre disease triggered by tick bites.

www.scientificamerican.com/article/man-...

14.11.2025 18:51 โ€” ๐Ÿ‘ 37    ๐Ÿ” 28    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 2
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City Raccoons Are Evolving to Look More Like Pets City-dwelling raccoons seem to be evolving a shorter snoutโ€”a telltale feature of our pets and other domesticated animals

I, for one, welcome our new trash panda overlords.

But for real, fascinating science on how we might be seeing the very early stages of domestication in action in wild animals. ๐Ÿงช

By @marinacoladas.bsky.social for @sciam.bsky.social

14.11.2025 14:27 โ€” ๐Ÿ‘ 273    ๐Ÿ” 61    ๐Ÿ’ฌ 14    ๐Ÿ“Œ 6
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Blue Origin's NASA Launch to Mars Is a Shot across the Bow for Elon Musk's SpaceX After delays, Jeff Bezosโ€™ rocket company successfully launched a NASA mission to study Mars on Thursday.

Blue Originโ€™s NASA Launch to Mars Is a Shot across the Bow for SpaceX

After delays, Jeff Bezosโ€™ rocket company successfully launched a NASA mission to study Mars on Thursday.

www.scientificamerican.com/article/blue...

14.11.2025 00:32 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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The Virus That Causes Mono May Also Cause Lupus Early findings indicate that Epstein-Barr Virus may also cause the autoimmune disease lupus

Early findings indicate that Epstein-Barr Virus may also cause the autoimmune disease lupus

12.11.2025 19:20 โ€” ๐Ÿ‘ 76    ๐Ÿ” 25    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 4
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Giant Mirrors, Orbital Data Centers and Space-Based Advertisements Could Soon Clutter the Night Sky Reflect Orbitalโ€™s plan to deliver โ€œsunlight on demandโ€ using thousands of giant orbital mirrors is just the latest in a growing list of disruptive commercial activities in space

Now on @sciam.bsky.social: Reflect Orbitalโ€™s plan to deliver โ€œsunlight on demandโ€ using thousands of giant orbital mirrors is just the latest in a growing list of disruptive commercial activities in space. By @raminskibba.bsky.social. ๐Ÿงช๐Ÿ”ญ

www.scientificamerican.com/article/alar...

06.11.2025 13:29 โ€” ๐Ÿ‘ 16    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
A view of New York Harbor at sunset viewed from lower Manhattan

A view of New York Harbor at sunset viewed from lower Manhattan

The view from the @sciam.bsky.social offices is pretty spectacular at this time of year.

05.11.2025 23:50 โ€” ๐Ÿ‘ 7    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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These Cosmic Outbursts Normally Last for Minutes. This One Went on for Hoursโ€”And Nobody Knows Why A cosmic explosion known as GRB 250702B is by far the longest gamma-ray burst astronomers have ever seenโ€”if itโ€™s even one at all

Now on @sciam.bsky.social: Astronomers are agog over this all-day gamma-ray burst.

A cosmic explosion known as GRB 250702B is by far the longest gamma-ray burst astronomers have ever seenโ€”if itโ€™s even one at all.

By @whereisyvette.bsky.social.

www.scientificamerican.com/article/long...

05.11.2025 21:02 โ€” ๐Ÿ‘ 51    ๐Ÿ” 16    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
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Chimps Can Rethink Their Beliefsโ€”Just Like Humans Are we the only rational thinkers? New research on our primate cousins suggests otherwise

Are we the only rational thinkers? New research on our primate cousins suggests otherwise

30.10.2025 18:44 โ€” ๐Ÿ‘ 280    ๐Ÿ” 75    ๐Ÿ’ฌ 31    ๐Ÿ“Œ 15
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How an Error in Cult Classic Game Doom Sparked New Appreciation for Pi What would the world look like if we changed the value of pi? Whether in the real world or a game environment, the answer is complex

What would the world look like if we changed the value of pi? Doomguy can tell you. www.scientificamerican.com/article/how-...

30.10.2025 12:09 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Is It Time to Classify Hurricanes as Category 6? Hurricane Melissaโ€™s powerful winds and drenching rains devastated Jamaica. But is its wrath a sign that we need a new designation for monster storms?

Hurricane Melissa and the knotty problem of hurricane categories: ๐Ÿงช www.scientificamerican.com/article/does...

29.10.2025 20:09 โ€” ๐Ÿ‘ 71    ๐Ÿ” 31    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 2
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This New Shape Breaks an โ€˜Unbreakableโ€™ 3D Geometry Rule The noperthedron has a surprising propertyโ€”which disproves a long-standing conjecture

One of the cool things about my job: Where else is the most-read story of the day going to be about noperthedrons? www.scientificamerican.com/article/math...

28.10.2025 21:14 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Some Scientists See UFOs in Old Telescope Data. Others See a Teachable Moment New peer-reviewed research reporting strange lights in the pre-space-age sky is sparking curiosity and controversy

Now on @sciam.bsky.social: Did astronomers photograph UFOs orbiting Earth in the 1950s, years before human activity there? New peer-reviewed studies suggest the answer is โ€œyes,โ€ but skeptics say these conclusions are premature. By @astrojonny.bsky.social.

www.scientificamerican.com/article/did-...

28.10.2025 13:20 โ€” ๐Ÿ‘ 9    ๐Ÿ” 5    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 2
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History Smelled. Hereโ€™s How Weโ€™re Sniffing It Out How can reconstructing long-lost smells of ancient artifacts help us connect with the past?

How can reconstructing long-lost smells of ancient artifacts help us connect with the past?

27.10.2025 14:20 โ€” ๐Ÿ‘ 25    ๐Ÿ” 7    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Hurricane Melissa Is the Third Category 5 Storm This Yearโ€”Thatโ€™s Only Happened Once Before This is only the second time weโ€™ve had more than two Category 5 storms in a single Atlantic hurricane season

This is only the second time weโ€™ve had more than two Category 5 storms in a single Atlantic hurricane season

27.10.2025 15:56 โ€” ๐Ÿ‘ 64    ๐Ÿ” 28    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 3
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Why Hurricane Melissa Could Be the Worst Storm to Ever Hit Jamaica Category 5 Hurricane Melissaโ€™s exceptional strength and slow pace could make it more destructive than Hurricane Gilbert, which hit Jamaica in 1988

As cat 5 hurricane Melissa bears down on Jamaica, it is poised to be the worst storm to ever hit the Caribbean island, surpassing Hurricane Gilbert in 1988, which killed 49 people, destroyed 100,000 homes and did $700 million in damage
www.scientificamerican.com/article/why-...

27.10.2025 20:34 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

It says "Don't forget to drink your Ovaltine."

18.10.2025 00:40 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Look Up for a Rare Comet and Meteor Show A comet visible to the naked eye will make its closest approach to Earth on October 21

A comet visible to the naked eye will make its closest approach to Earth on October 21

17.10.2025 14:11 โ€” ๐Ÿ‘ 68    ๐Ÿ” 22    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 3
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Two Wrong Strategies Do Make a Right in This Math Paradox In certain circumstances, losses create a sure path to victory, an idea with implications for biology and cancer therapy

In certain circumstances, losses create a sure path to victory, an idea with implications for biology and cancer therapy

16.10.2025 13:15 โ€” ๐Ÿ‘ 22    ๐Ÿ” 6    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

@dme is following 20 prominent accounts