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John Gianforte

John Gianforte

Sep 18, 2026

0:16
But as a whole, what are they?
0:18
So there's like 51 fundamental constants in nature that define what reality is.
0:24
Some of them are really interesting.
0:26
For example, the speed of light, the absolute speed limit for anything that carries energy or information in a vacuum.
0:33
It's like 186,262 miles per second.
0:36
That's a fundamental constant, right? So that's an important one.
0:40
There's also something called Planck's constant, which sets the scale of quantum effects, determining how energy is absorbed and emitted in discrete packets of quanta.
0:54
So why is it important for scientists to define these constants?
0:13
Why is it in the news right now?
0:14
The thing that makes this particular planet so interesting is that the star that the planet orbits is a lot smaller in size than the sun and a lot less massive, and therefore...
0:29
It's a much longer lived star than the sun is.
0:34
So that gives life a chance to develop on a planet that happens to be at the right distance from that star.
0:42
OK, this planet happens to sit at an interesting distance called within the habitable zone of this star.
0:50
The habitable zone is the region around a star where if a planet orbited there and if the planet had water, it could be liquid.
0:59
Now, why this planet is in the news is because researchers using the James Webb Space Telescope have found two very interesting molecules, dimethyl sulfide and dimethyl disulfide.
0:39
So what does that mean?
0:41
So the sun emits a wind of high-energy charged particles, mainly electrons and protons.
0:48
And it's been doing that ever since the sun formed, you know, four and a half billion years ago.
0:53
So that's blowing about 400 kilometers per second.
0:58
And it changes.
1:00
It ebbs and flows depending on what's happening at the sun.
1:03
That wind blows outward.
1:31
That sounds pretty cool, but why is that something we need to measure?
9:02
Did you hear it at all?
9:03
I did not hear it.
9:05
I was really mad that I didn't.
9:07
I spent a few days last week on Nantucket Island.
9:12
Would have been a great place to listen and maybe even hear this on Saturday.
9:16
But I was here in Durham near campus and I didn't hear it.
9:21
You know, these things aren't that rare, but they're rare around where you live, right? You know, the earth is big, has a lot of surface area.
11:42
Can you learn something from the chemistry, from the iron that's within these meteorites?

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