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The Skeptics' Guide to the Universe
@theskepticsguide.bsky.social
7.3K followers 64 following 260 posts
The official Twitter for The Skeptics' Guide To The Universe.
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theskepticsguide.bsky.social
After Jay's daughter was told by her science teacher that we didn't land astronauts on the moon, Steve gave us a quick refresher on debunking moon landing myths.

theness.com/neurologicab...
Moon Landing Hoax In School - NeuroLogica Blog
Last week a child of one of my cohosts on the SGU, who is in fifth grade (the child, not the cohost), came home from school and declared, rather dramatically, "Mom, Dad - did you know that we never we...
theness.com
February 2, 2026 at 4:54 PM
theskepticsguide.bsky.social
Thank you Seattle! We had a great time and hope you all did too!
Group photo on stage from the Seattle Extravaganza
January 12, 2026 at 1:23 AM
theskepticsguide.bsky.social
In our world of “alternative facts” and “fake news,” it often seems like we’re living in a different reality than those we disagree with. Andrea and Steve are determined to get to the bottom of it in their new show, Political Reality, where they turn their skepticism to the political arena.
Welcome to Political Reality! | Political Reality Podcast
Get more from Political Reality Podcast on Patreon
www.patreon.com
January 8, 2026 at 11:08 PM
theskepticsguide.bsky.social
Happy New Year! Time to make your “psychic” predictions for 2026. See if you can beat the rogues on our upcoming prediction episode. Don’t forget to check last year’s post to see how you did!
Image of a crystal ball with the SGU logo on it surrounded by smoke, candles, and a pair of hands Text: “Let’s see your best predictions for 2026!”
January 1, 2026 at 7:35 PM
theskepticsguide.bsky.social
Time to reflect on your 2025 predictions! How did you do? Stay tuned tomorrow to share your predictions for 2026
theskepticsguide.bsky.social The Skeptics' Guide to the Universe @theskepticsguide.bsky.social · Jan 3
Our annual psychic prediction episode is coming up! Time to make your predictions for 2025. Can you beat the "real" psychics? Or the rogues?
Let’s see your best predictions for 2025!
December 31, 2025 at 11:53 PM
theskepticsguide.bsky.social
You don’t need to have your blood taken out and oxygenated, but the wellness industry is still trying to sell “Extracorporeal Blood Oxygenation and Ozonation” to increase longevity.

sciencebasedmedicine.org/extracorpore...
Extracorporeal Blood Oxygenation and Ozonation
There is an entire industry catering to people who, as Webb once famously said on the hilarious Homeopathic A&E skit, have "more money than sense." This is the so-called "wellness" industry, now
sciencebasedmedicine.org
December 14, 2025 at 10:17 PM
theskepticsguide.bsky.social
Science or Fiction time! Guess the fiction from 2008 by liking the post in this thread with your answer choice:
1: A new study finds that the psychedelic effects attributed to the popular bohemian drink known as Absinthe were entirely due to its alcohol content. 2: A new brain imaging study shows that alcohol disinhibits certain emotional centers in the brain, exaggerating the response to a perceived threat. 3: A new study shows that virtual reality ‘video game’ environments can trigger drinking behavior and can be used to treat alcohol addiction.
December 9, 2025 at 11:50 AM
theskepticsguide.bsky.social
Today’s Science or Fiction throwback is from 2012 and we have a theme – etymology. Guess which is the fictional word origin by liking the post in this thread with your answer choice!

#scienceorfiction
December 2, 2025 at 12:48 PM
theskepticsguide.bsky.social
This Thanksgiving, we want to thank everyone who has supported us over 20 years of podcasting and everyone who has joined us in our mission to promote science, skepticism, and critical thinking. We couldn't do this without you!
Happy Thanksgiving from the SGU to you!
November 28, 2025 at 2:01 AM
theskepticsguide.bsky.social
Science or Fiction time! Guess the fiction from 2015 by liking the post in this thread with your answer choice.
1: A recent study finds that grey squirrels are capable of solving complex puzzles, rivaling primates. 2: A large genetic analysis finds that increased genetic diversity is associated with being taller and smarter. 3: A new technique allows examiners to extend the window in which the time of death can be accurately determined from 36 hours to 240 hours.
November 18, 2025 at 12:15 PM
theskepticsguide.bsky.social
Happy Halloween from the SGU! 💀🎃👻
November 2, 2025 at 3:57 PM
theskepticsguide.bsky.social
Science or Fiction time! Guess the fiction from 2010 by liking your answer choice in this thread:
1: A new analysis confirms that the so-called mitochondrial eve lived about 200,000 years ago. 2: New research indicates that for adults internet access at home is significantly associated with a decreased probability of being involved in a romantic relationship. 3: New images of the Moon’s surface indicate that the Moon is shrinking – by about 100 meters in the recent past.
October 21, 2025 at 10:56 AM
theskepticsguide.bsky.social
Science or Fiction time! Guess the fiction from 2009 by liking your answer choice in this thread
1: New studies find that most people grossly overestimate their ability to resist temptation. 2: A new study finds that daily use of kefir, a fermented milk drink rich in probiotics, is associated with a decreased risk of autoimmune diseases like rheumatoid arthritis. 3: A new study finds that 70% of US children are deficient in Vitamin D.
October 14, 2025 at 11:10 AM
theskepticsguide.bsky.social
Today’s Science or Fiction throwback is from 2013. Guess which is the fiction by liking your answer choice in this thread

#scienceorfiction
1: New research finds that hearing a salesperson flatter another customer causes a negative reaction to the salesperson but increases the desire to buy an expensive item. 2: A new study finds that subjects were more likely to purchase a lottery ticket if they had just spent money on an expensive item. 3: Researchers find that women are more likely to purchase expensive accessories when they feel threatened in their relationship, and that this strategy works because women are also less likely to pursue a man whose girlfriend has expensive accessories.
October 7, 2025 at 11:48 AM
theskepticsguide.bsky.social
Science or Fiction time! Guess the fiction from 2010 by liking your answer choice in this thread
1: After studying material, self-testing is more effective at enhancing learning than repeated studying. 2: It is best to study in a consistent and uncluttered environment. 3: A recent review concludes that there is no evidence to support the notion that different people benefit from different learning styles, such as visual vs auditory.
September 23, 2025 at 11:21 AM
theskepticsguide.bsky.social
Science or Fiction time! Guess the fiction from 2015 by liking your answer choice in this thread:
1: Scientists have developed a smart keyboard that is self-powered and can identify users by their typing pattern. 2: Analysis of the oldest fossil primate species indicates that the earliest primates lived underground. 3: New research finds that wolves have as much social skill with their own species and with humans as do domestic dogs.
September 16, 2025 at 10:47 AM
theskepticsguide.bsky.social
Science or Fiction time! Guess the fiction from 2009 by liking the post in this thread with your answer choice.
1: Scientists reveal the first car that can run on biofuel made from chocolate. 2: Physicists have developed a new incandescent light bulb suitable for residential use that is almost 100 times as energy efficient as existing bulbs. 3: A new fossil analysis shows that the so-called “hobbit”, or Homo florensiensis, had long flat feet more like apes than humans, and therefore could not walk efficiently.
September 9, 2025 at 7:40 PM
theskepticsguide.bsky.social
Science or Fiction time! Guess the fiction from 2013 by liking the post in this thread with your answer choice:
1: A new study finds that medical testimonials that contain irrelevant information may lead to inappropriate medical decision making. 2: A recent study finds that listening to an emotional sermon can induce an out-of-body experience in susceptible people. 3: A new paper warns against “chemophobia,” the irrational fear of the ubiquitous and non-toxic chemicals found in our food and environment.
September 2, 2025 at 10:54 AM
theskepticsguide.bsky.social
No, oregano oil is no the solution to all of your problems...

sciencebasedmedicine.org/oregano-snak...
Oregano Snake Oil
Oregano oil is being marketed with a variety of health claims, including as a treatment for various infections, inflammatory disorders, and skin conditions. This TikTok video by an "Ayervedic special
sciencebasedmedicine.org
June 26, 2025 at 3:10 PM
theskepticsguide.bsky.social
We're going to Kansas! If you'll be near Lawrence Kansas on September 20th, come see us! We have a private show at noon and a Skeptical Extravaganza in the evening. Join us for a night of games, music, and critical thinking!
theskepticsguide.org/events
June 25, 2025 at 2:47 PM
theskepticsguide.bsky.social
Science or Fiction time! Guess the fiction from 2016 by liking the post in this thread with your answer choice:
1: Physicists studying solar cells may have discovered why most plants on Earth are green. 2: Researchers have published the first estimate of the mass of the technosphere, 30 trillion tons, or 50 kilograms per square meter of Earth surface. 3: Astronomers have identified the tiniest known asteroid, measuring about 200 millimeters in average diameter.
June 10, 2025 at 3:46 PM
theskepticsguide.bsky.social
Science or fiction time! Guess the fiction by liking them post in this thread with your answer choice:
1: A new study finds that the Earth’s magnetic field is much closer to flipping polarity than previously thought and may happen this century. 2: After sequencing the genome of the tardigrade, researchers found that about 6,000 genes, or over 17%, of the tardigrade’s genome is composed of foreign DNA. 3: Engineers have made bionic roses, with transistors and electrodes incorporated into the leaves and stem, including a rose that can change color when an electrical current is applied.
June 3, 2025 at 10:54 AM
theskepticsguide.bsky.social
We're not streaming today, but you can still watch our stream of Boomer vs. Zoomer from Not-A-Con last weekend! Find out who stormed off the stage, why Ian handed out a giant watermelon coin, and which quizmasters have mastered childhood games!

www.youtube.com/live/QbHl8LO...
Boomer Vs Zoomer LIVE at NOTACON2025
YouTube video by TheSkepticsGuide
www.youtube.com
May 23, 2025 at 6:53 PM
theskepticsguide.bsky.social
It's time for our generational quiz show, Boomer vs. Zoomer! We're streaming the show live! Play along:

YouTube.com/theskepticsguide/live
Game show podiums for each generation
May 16, 2025 at 11:27 PM
theskepticsguide.bsky.social
Skepticism is hard work, with all those pesky "facts" and "data." Maybe some of our attendees can talk us out of it in our new Not A Con segment: Pitching Woo!
May 16, 2025 at 3:52 PM