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[-] Skyrmir@lemmy.world 12 points 1 day ago

The aurora borealis would be amazing, for a limited time.

[-] Klear@piefed.world 7 points 1 day ago

Certainly better than the one in my kitchen.

[-] Kolanaki@pawb.social 19 points 1 day ago

There wouldn't be an Earth for very long.

[-] Klear@piefed.world 8 points 1 day ago

Thanks for this clever summary! Now there's no point in clicking the video /s

[-] Treczoks@lemmy.world 7 points 1 day ago

We would be long gone. Can you imagine what a football-sized (or even bigger) antimatter meteorite would do?

Hint: six to seven grams of antimatter is the equivalent of the bomb that took out Hiroshima.

[-] teft@piefed.social 4 points 1 day ago

6 to 7 grams? No. 1/4 of a gram of antimatter reacting with 1/4 gram of matter is just about the right mix. That’ll be around 15 kilotons.

[-] Treczoks@lemmy.world 5 points 1 day ago

I re-did the calculation. You are closer, but the conversion of half a gram yields about 10 kilotonnes. Makes the meteorite a bit worse.

Calculation based on 4'184'000'000'000 joules per kiloton TNT.

[-] teft@piefed.social 2 points 1 day ago* (last edited 1 day ago)

Now we just gotta ramp up production at LHC. Nobody tell them what the antimatter is for.

[-] cron@feddit.org 4 points 1 day ago

The video doesn't mention the sun. Could an antimatter sun shine?

[-] rockerface@lemmy.cafe 14 points 1 day ago

In fact, yes. Photons don't have a charge, so anti-photons would illuminate the Earth all the same. The issue, as the video points out, will come from too much energy hitting the Earth's surface, not too little.

[-] Swedneck@discuss.tchncs.de 3 points 1 day ago

in fact so far as i can tell, there wouldn't be anti-photons, they'd just be normal photons

[-] rockerface@lemmy.cafe 3 points 1 day ago

Yep, anti-photons are just photons. They are their own counterpart.

[-] trashgirlfriend@lemmy.world 10 points 1 day ago

EVIL antimatter sun that STEALS your light and heat

[-] TigerAce@lemmy.dbzer0.com 1 points 1 day ago

We would be completely fine if Chuck Norris was still alive.

this post was submitted on 17 Jun 2026
72 points (98.6% liked)

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