Jupiter Was A Failed Star? ⭐ w/ Neil deGrasse Tyson

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[Synthwave]

In less than a minute Neil casually taught us how thermo nuclear fusion works

[Flashtone]

Love or hate him, but Neil can teach the most complex of topics to the average Joe.

[capybarinya]

"Jupiter is not a failed star. It's a very successful planet."

[Zaida-qkom]

Dr deGrasse Tyson has taught me more than all my science teachers! He is so basic yet thorough and interesting. Thank you Dr Tyson.

[osabuohien.uwaifo.]

If I was expose to Neil in my earlier age, no way no one would have told me not to fall in love with physics and pursue it with all my heart. Pls we need you in our children formative years. You are truly a blessing.

[chrisrodgers]

Hydrogen atoms, because of their electromagnetic field will not collide. They veer off the last moment to avoid impact. But with the massive force of gravity, and the immense pressure in the core of the star, the temperature negates that electromagnetic field, allowing them to collide. Here on earth, you can heat up cast-iron to the point that It’s no longer magnetic like that.
Now that the hydrogen has the weaken field, they can then collide, bonding together, creating helium. A helium atom weighs less than two hydrogen atoms so it lets off a photon of pure energy. That is the light that shines in the star and takes about 100, 000 years for that photon to escape the sun and then eight minutes to get to earth.

[PhucYuBich]

Im a failed son. If i had 5x more love, I'd probably be a good son.

[TheMpkeaton]

86 Jupiter's would make a star. Thats what it took to create one in a simulator.

[true.fame.]

mann i learned something new every time i listen to this man

[pietrotettamanti]

Helium does not have less mass than hydrogen. It has more mass, about four times more if you count H-1 and He-4. What Tyson was trying to say is that helium has less mass per nucleon, as the binding energy between the bound nucleons comes from the mass of the separated ones.
Simply put, the mass of four H-1 nuclei is larger than the mass of a He-4 nucleus.
However, saying that hydrogen is more massive than helium is wrong.

[Smartness_itself]

In fact, a Helium atom is almost 4 times heavier than a Hydrogen atom.

In the first stage, two protons combine and one of them converts into a neutron to form a nucleus of the heavy isotope of hydrogen known as deuterium and a solar neutrino.
Next, the deuterium nucleus combines with another proton to form the light helium isotope known as helium-3 and a gamma ray.
Finally, two helium-3 nuclei combine to form helium-4, releasing two protons.

[anthonyneal]

I love this guy. He explains science so perfectly.❤❤❤

[tordlindgren]

Its really a rare skill to explain complex things simply.

[DaimyoD]

Would have been a good opportunity to bring up brown dwarfs. That threshold isnt perfectly dichotomous. You can be between a gas giant and a star.

[niwty]

The premise of Arthur C Clarke’s sequel to “2001 A Space Odyssey” has the builders of the Monolith on the moon ignite Jupiter as a small star in order for life on Europa (one of its moons) to evolve.

[emerald]

Im rather sure that Jupiter would need to be over 80 times more massive just to become a small red dwarf and 13 times It's mass for It to become a brown dwarf If It were a brown dwarf then It would be a failed star but It's nowhere near that territory.

[MrJoeLeger]

Neil.... please keep talking! 100% respect.

[SaltySteff]

It's worth mentioning also that Jupiter is considered to be near the upper size limit that planets can reach. There are planets that are much larger but they also have next to no mass, like giant marshmallows. Jupiter is massive AND huge. It's used to compare to other hypothetical enormous exoplanets

[jreed]

I’ve been into space ever since I was a kid, but it never crossed my mind that stars weren’t always stars. That’s wild

[khasmir]

He oversimplified it a bit too much so that 96% of us would understand. Obviously he means the Helium atom weighs less than the combined weight of the Hydrogen atoms that fused to create it :)