@neildegrassetyson: Why did life happen on Earth only once? 🌍 Astrobiologist Betül Kaçar explains why life may depend not just on biology but on the planet itself Watch more featuring astrobiologist Betül Kaçar 🔗 link in bio #StarTalk #Astrobiology #Aliens
As far as we know, the universe has never made just 1 of anything. So why would be think there's only life on earth?
2026-05-12 23:32:28
16
Multi-Sanchez :
it really depends on how you feel about the band after Phil Collins took over singing. for me its a whole different band so for me there have been 2 geneses
2026-05-13 00:30:59
19
Isaac :
just search Align and Receive by Luna Veyra (Thank me later) she changed my entire perspective on life
2026-05-12 16:58:12
62
Metatron :
there has, how would anyone know it's not happening now
2026-05-12 16:53:34
1
MidtownCat :
I think I misinterpreted the phrase. Why did life on earth happen once you mean in the universe because life on earth has happened many times there’s been many extensions catastrophic events. What am I missing or is it the bourbon? I think that was pretty obvious that there was an issue in the wrong
2026-06-20 03:42:02
1
:
Even when I was in high school it was suggested that life might have arisen multiple times but it could have metabolized itself away before evolving autotrophic abilities.
2026-06-15 16:30:06
0
Pete :
Rosie Perez was an astrobiologist this whole time?!😳
2026-05-15 04:41:19
1
jennyanywrenny :
How would you determine if there was a second genesis experimentally. Could you determine if a fossilized organism came from one genesis or another?
2026-05-16 13:53:32
2
MightyBuscemi :
I thought you meant the flood part so I was like “yeah! wtf? Let’s gooo!” 🔚🔜
2026-05-14 04:46:50
1
Dale Madde❌ :
2027
2026-05-24 00:30:40
0
SoYD :
I assume it's been tried numerous times, but if we have a general idea of the building blocks, why can't we replicate a life-fostering environment with amino acids, give it some energy, and just...make something?
2026-05-15 23:16:54
0
jessica458 :
An accident
2026-05-12 23:28:13
1
Yaqoub S - يعقوب :
Life is such a complicated thing. No way it just happened by chance!
2026-05-16 18:39:39
0
ReyLee2020 :
She is so awesome! Does she have a channel or podcast?
2026-05-17 11:28:27
1
Peter King :
How do we know there wasn’t more than one?
2026-05-14 23:46:15
1
G.Renee.G❌ ♓️ :
Because their is only one sun. The key is the sun.
2026-05-21 01:12:14
0
Lizybe 🇺🇸 :
This is great. I never thought about this in this way.
2026-05-17 00:51:58
0
robintheclouds :
Are version of life
2026-05-12 20:02:20
0
Korben :
i still subscribe to the Rene Descartes (reinterpreted by the Wachowski's) that we are effectively brains in [the matrix]. And that we cannot determine from within the simulation, that it is a simulation. Even all of human history, could just be a simulation, to each of us. The dream seems very real, from within the dream
2026-05-13 07:37:57
0
LeScience :
The molecules that would hypothetically form life, are used by already existing life. The niche of simple-self replication is too full, and the resources for simple-replication are already bring used by current life
2026-05-14 03:43:55
0
Milly :
Maybe there has been more than once. If the theory that the universe eventually collapses in on itself, maybe its’ rebirth (a big bang) is the reset?
2026-05-13 15:53:05
0
Thamuwan :
maybe there were other Genesis but they died out 🤷
2026-05-17 17:09:59
1
michael47768 :
There a ton of different creation stories
2026-05-14 01:40:27
2
JBrantley.com :
How would we know about it? How would we know after the library of Alexandria was destroyed? How would we know after all the things that have happened to the planet?
2026-05-14 04:19:43
1
💗 :
May God bless everyone who Read this in Jesus Name
2026-05-12 17:00:25
2
To see more videos from user @neildegrassetyson, please go to the Tikwm
homepage.