How many EARTH like planets 🌎 in our Galaxy? w/Brian Cox #milkyway #lifeonearth #cosmology

Brian Cox and Joe Rogan on How many Earth like planets in the Milky Way Galaxy

Join physicist Brian Cox and Joe Rogan as they discuss How many Earth like planets in our universe and why is Earth luckier one. Prof. Brian Cox discusses the idea that there might be 20 billion Earth like rocky planets in our universe. However, Earth's 4 billion years of evolution and the presence of companions such as Jupiter have significantly contributed along with our Solar System to make it a consistent planet for more than 4 billion years. As we already know, Earth took about 3 billion years to develop from single-cell life to multicellular life and another half billion years to to go from multicellular to intelligent civilization. More surprisingly, our species has been around for only half a quarter of a million years. So, because of its consistency, we have been able to live our lives.

#cosmology #briancox #evolution #earth #lifeonearth #earthlikeplanet

[darkartsgaming]

Heres the thing right.

Our sun is stable, not many are.
Our planet was hit by a planetoid, which the remnants of are what we know as the moon.
Because of this, our core is larger than what it should be for a planet our size.

We are in the goldy-locks zone.

Because of our larger than average core, we have a stronger than average magnetosphere which protects us from harmful uv rays.

We have an unusual solar system given the fact that most solar systems have the larger planets closer to the star than the smaller ones.

Mother nature does not favor intelligence, it favors strength. If not for the asteriod that started the death of the dinosaurs, our feeble selves would have never been able to dominate the food chain.

The asteroid was large enough to kill dinosaurs but not large enough to exterminate all life. Very lucky.

We have enough land to water ratio to have a weather system that propegates life.

We have a moon that is precisely the size and distance it needs to be to give us tides and seasons. Without the moon, the oceans would stagnate like a swamp. Also without the moon, we would have eternal spring. Sounds good, but it would come with massive earthquakes and volcanic eruptions which would make life on earth nearly impossible.

We have jupiter, a gas giant that shields us from 98% of all asteroids that would hit earth.

We are not located near the center of the galaxy, were gamma rays, pulsar radaition, super nova radaition and black holes are much more common.

We have had an incredibly lucky span of peaceful nature, something which scientist who study earth history say is not common. In other words, we were supposed to have had a super volcano eruption by now, a super earth quake by now, an ice age by now.

Now, with all those factors, how many of those 20, 000, 000, 000 planets capable of life, have all those qualities?

Now, how many of those planets, with those same qualities (Lets say there is at least one) have inteligent life equal or more inteligent than ours.

Out of those, how many have survived plagues?
Natural disasters?
Cosmological dissasters?(Gamma rays, asteroids, comets, sun flares, core spin reduction)

Out of those, how many have survived famine?
Ice age?

Now out of all those that are left, how many would have survived themselves? (War)

With all the 20, 000, 000, 000 life cappable planets in our galaxy, the chances of other life existing is less than the odds of you or me walking the entirty of the sahara desert and finding one, JUST ONE, solid gold bar.

There is a much higher probability that aliens are us from the distant future.

[jxbyfih]

Jupiter is the real MVP in stabilising the solar system

[kelseyharris]

I love that Brian Cox is never afraid to say "we don't know" in response to a question. One of the reasons I love hearing his answers, I feel like he's rather honest.

[davido]

His calm voice and way of explaining things I would like to work for him.

[kylehardy]

I love Brian Cox’s voice. So relaxing and chill.

[huskytzu]

It’s interesting. It’s not just Earth that just happened to be in the habitable zone but also all the planets, satellites surrounding it that makes it work.

[MrShocker]

The music got me saying, “DONT LET ME LEAVE MURPH 😭”

[RuhleS]

Brian Cox is the only 57 year old that still looks like he's 20.

[purplemonkeydishwasher]

Brian is such a pleasant and pragmatic scientist. No ego. So pleased Joe had him as a guest. I use this podcast as sleep therapy. Just soooo chill

[ruthlessrog]

Brian is awesome. Could listen to him for hours. Just a level headed, intelligence through the roof, but speaks in such a clear, comprehending manner

[rishabhlakhara]

Him and the bee lady have such calming voices they should do a podcast together

[srincident]

Brian Cox is one of those rare brilliant minds.

[treelinehugger]

"We don't know."
Great answer.

[davidjones-gmph]

I always love how freely he says that we dont know something or he does not know, that shows you confidance and knowladge

[ExtremeKnexRides]

Even with the development of science and knowledge we have gained in a very short 100 years, you cannot help but wonder that the solar system is so perfect for one of her planets to harbour life as if it was by design. Jupiter protecting us, the sun being stable enough, the fact we spin on axis, the fact our moon if perfect distance, not only to not kill us but also to provide us with a perfect ecljpse.

You could compare us to a complex experiment that someone or something has designed

[bconni]

that was his diplomatic way of saying "we might be alone".

[mantejwalia]

“Jamie, pull up the video of bear who found intelligent life on another planet “

[Lorena-uxnv]

He's the only man.. I've heard on social.. That's not only highly intelligent..His Voice is the most relaxing of all of them! & them/ are many!! Love his intelligence and his informative way he can explain things..so anyone is able to understand & learn!! Thank you Brian Cox!❤🙂

[YoTizzler]

20 billion is like an unfathomably large number that I don’t really think people really comprehend. To me it seems much more likely that there would be life like ours but that it would just be at pretty much the same level of advancement. I.e unable to travel long distances across space

[dubwub]

I love this comment section so much for the appreciation of life and our solar system it’s awesome 😊