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Scott Johnston

@scottjohnston

Science Writer. Author. PhD. Stargazer. Find me at Perimeter Institute and Universe Today. Opinions are my own.

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18.09.2023
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Latest posts by Scott Johnston @scottjohnston

Introducing: Cosmology 101 with Katie Mack
Introducing: Cosmology 101 with Katie Mack YouTube video by Perimeter Institute for Theoretical Physics

I've been going through these videos for some work reasons, and they're so well done. Just great work all around by @astrokatie.com and @perimeterinstitute.ca.

05.03.2026 21:17 πŸ‘ 161 πŸ” 35 πŸ’¬ 3 πŸ“Œ 1
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This is Aly. She just learned about capitalism. Certainly not a perfect system, but if that is what it takes to put chippies on the table, she understands. 13/10 (IG: alythebichon)

04.03.2026 18:58 πŸ‘ 3251 πŸ” 456 πŸ’¬ 43 πŸ“Œ 39

Someone let the penguins of the Heard and McDonald Islands know that their long ordeal is coming to an end.

20.02.2026 15:45 πŸ‘ 1133 πŸ” 258 πŸ’¬ 19 πŸ“Œ 15
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Anatomy of a Feynman Diagram | PI News

Want to learn how to decipher one of physics' most useful tools? Check out our one-page primer on how to read Feynman diagrams: perimeterinstitute.ca/news/anatomy...

13.01.2026 15:50 πŸ‘ 85 πŸ” 23 πŸ’¬ 2 πŸ“Œ 2
Statement by Federal Reserve Chair Jerome H. Powell
Statement by Federal Reserve Chair Jerome H. Powell YouTube video by Federal Reserve

Video message from Federal Reserve Chair Jerome H. Powell:
www.youtube.com/watch?v=KckG...
www.federalreserve.gov/newsevents/s...

12.01.2026 00:35 πŸ‘ 24030 πŸ” 9200 πŸ’¬ 1149 πŸ“Œ 2891

Having a toddler means getting to learn unexpected things. Today's discovery: dinosaurs and bees coexisted! πŸ¦–πŸ

10.01.2026 01:44 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Understanding the U.S. Strike on Venezuela | Explainer
Understanding the U.S. Strike on Venezuela | Explainer YouTube video by Heather Cox Richardson

Heather has it right.

04.01.2026 00:45 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Yikes.

01.01.2026 03:26 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
🎭 Dramatic Monologue: Defying Gravity from @wickedmovie #wicked #wickedmusical #actingmonologue
🎭 Dramatic Monologue: Defying Gravity from @wickedmovie #wicked #wickedmusical #actingmonologue YouTube video by jmcnik: SONGOLOGUES

How Einstein really discovered relativity:

21.11.2025 19:18 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Economics Nobel prize won by researchers who showed how science boosts growth Joel Mokyr, Philippe Aghion and Pewter Howitt share economics prize for work that underlines the importance of investing in research and development.

Joel Mokyr, Philippe Aghion and Pewter Howitt share economics prize for work that underlines the importance of investing in research and development.

go.nature.com/4hj9NNV

13.10.2025 20:37 πŸ‘ 209 πŸ” 75 πŸ’¬ 3 πŸ“Œ 18

This is Canada's first official look at the country's most ambitious radio observatory to date, now under construction in Penticton, BC.

28.08.2025 14:23 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Every reputable expert I know considers mRNA vaccine technology to be one of the most revolutionary advances in medicine in our lifetimes. Its inventors won the Nobel Prize in 2023. Shutting it down now is pointless self-harm to humanity.

05.08.2025 22:54 πŸ‘ 18079 πŸ” 6742 πŸ’¬ 547 πŸ“Œ 283
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UK gets first female Astronomer Royal in 350 years Prof Michele Dougherty is the first woman to be appointed to the influential post.

Congratulations to Professor Michele Dougherty on her appointment as the UK's Astronomer Royal – the first woman to hold the position in its 350-year history! πŸ”­βœ¨

πŸ”— www.bbc.co.uk/news/article...

#Astronomy

30.07.2025 10:09 πŸ‘ 107 πŸ” 18 πŸ’¬ 2 πŸ“Œ 3

Happy πŸŽ‚day!

24.07.2025 04:14 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

At first glance this is very, very good news for NASA and other agencies. I think that many missions zeroed out by the White House decree are reversed here. Still a long way to go but this is an excellent sign. I'm sure many others will chime in on this.

18.07.2025 16:34 πŸ‘ 359 πŸ” 61 πŸ’¬ 10 πŸ“Œ 3

Fingers crossed. Keep telling your members of Congress this is important.

10.07.2025 20:50 πŸ‘ 175 πŸ” 45 πŸ’¬ 3 πŸ“Œ 0

This is an absurd step backwards. NASA stands among the USA's greatest achievements, and to see its science program dismantled so deliberately is heartbreaking.

09.07.2025 19:58 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I don't know what I'd do without em!

07.07.2025 02:56 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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a man with a backpack is walking through a field with the words `` we 're going on an adventure '' above him . Alt: a man with a backpack is walking through a field with the words `` we 're going on an adventure '' above him .

The world is in for a treat with the Rubin Observatory, mark my words. This feels like one of those things where we won't truly grasp just how big a deal this thing is until after the fact. A decade from now we'll be swimming in new info about the universe that we can't even predict yet.

23.06.2025 04:34 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

πŸ‘€

23.06.2025 04:12 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

"I asked ChatGPT" "I asked Grok" ok well I asked Gandalf and he said he has not passed through fire and death to bandy crooked words with a witless worm

19.06.2025 12:42 πŸ‘ 18802 πŸ” 5914 πŸ’¬ 51 πŸ“Œ 91
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The 2025 @swc-can.bsky.social Science Writers and Communicators of Canada conference is getting started! I'm excited to be at UNB with @perimeterinstitute.ca this morning to connect with writers and science comms experts from across the country.

12.06.2025 13:10 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Google and Meta search both report that Cape Breton Island has its own time zone 12 minutes ahead of mainland Nova Scotia time because they are both drawing that information from a Beaverton article I wrote in 2024

10.06.2025 00:50 πŸ‘ 6767 πŸ” 1877 πŸ’¬ 109 πŸ“Œ 217
The NASA planetary science fleet chart. It shows two spirals with missions to Moon/Mars and the Solar System. I’ve crossed off all of the missions that will be cancelled in the president’s budget… and there are a lot of them.

The NASA planetary science fleet chart. It shows two spirals with missions to Moon/Mars and the Solar System. I’ve crossed off all of the missions that will be cancelled in the president’s budget… and there are a lot of them.

The NASA planetary science fleet chart if the president’s budget is enacted.

30.05.2025 21:57 πŸ‘ 792 πŸ” 436 πŸ’¬ 31 πŸ“Œ 54
No One Knows When They Don't Die
No One Knows When They Don't Die YouTube video by vlogbrothers

Hank nailed this one.

16.05.2025 20:33 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Scientists find strongest evidence yet of life on an alien planet | CBC News In a potential landmark discovery, scientists using the James Webb Space Telescope have obtained what they call the strongest signs yet of possible life beyond our solar system.

Alien algae was not on my bingo card for today, but I'll take it. 🦠 www.cbc.ca/news/science...

17.04.2025 16:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
The quantum origins of glow-in-the-dark | PI News

Writing this (and filming the reel) was a blast. Learning quantum mechanics is always more fun with liquid nitrogen!

18.03.2025 17:25 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Oh. My. Wow. This image here, THIS STUNNING PHOTO, was taken by Blue Ghost on the Moon. Because while we saw a lunar eclipse on Earth, the Moon saw a solar eclipse at the same time. That's us, Earth, eclipsing the Sun. And it just gives me goosebumps to see like this!!

15.03.2025 08:56 πŸ‘ 488 πŸ” 155 πŸ’¬ 8 πŸ“Œ 7

You get a moon! You get a moon! Everybody gets a moon!

11.03.2025 19:40 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

So sorry! πŸ˜”

10.03.2025 21:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0