Did Life on Earth Come From Outer Space?

Written & Researched by Leila Battison. Check out her channel:-
Script & video edited & by Pete Kelly. Check out his channel:-
Narrated by David Kelly. Check out his channel:-

Thumbnail Art by Ettore Mazza
Artwork by Khail Kupsky

References:-

[HistoryoftheEarth]

Hey guys thanks for watching! Follow us on Instagram to see the amazing artwork featured on the show - @historyoftheearth_ig

[Viperzka]

The main problem with panspermia is that life had to first arise somewhere. Panspermia doesn't solve any problems about how life arose, it just kicks the can further down the road.

[billmiller]

Carl Sagan: "The lives and deaths of the stars seem impossibly remote from the human experience. And yet we're related in the most intimate way to their life cycles."

[Vasharan]

There are at least 2 very good reasons that life on Earth is not a result of directed panspermia:
1. Deep sea vents. Some of the earliest life on Earth arose from deep sea vents. These would be very difficult to seed from a spaceship, as opposed to land or the shallows.
2. Mitochondria. Mitochondria arose later than early life, meaning the first life forms probably did not have access to the ATP cycle, and used the lactic acid cycle or an analogue. If aliens introduced life on Earth, it is unlikely they would have neglected to add ATP synthesis into the DNA of their seed batch, because it is 15x more efficient than the lactic acid cycle. It would have made their seed batches horribly inefficient if the goal was to spread life through the galaxy if they had "forgotten" to include such a critical pathway to mulitcellular life.

[WayneDeJagerSF]

Obviously a ton of work and research into this. Nice work...really solid stuff, and I appreciate it. Thank you.

[erictaylor]

The problem with panspermia is, it still doesn't answer the question, "How did life begin?" it just moves where it happened.
Life began on Earth almost as soon as it could begin. So I think that abiogenesis will happen anywhere that conditions make it possible. This would make it much more likely that life began on Earth because the number of "lucky things" that have to happen is so much lower.
With terrestrial abiogenesis all you need to do is have conditions that make it possible exist, and conditions that make life possible need to continue.
For panspermia you still need the same things to happen in some other location, but you also needs some event so violent it launches a life form into interplanetary space, but not so violent it kills the life form (this is quite a tall order). Then that life form needs to survive in space for quite some time, then it needs to survive entry into Earth's atmosphere and landing on Earth and finally, it needs to land in a place where it and it's descendance can survive and evolve.
Occam's Razor states that the simpler answer is usually the correct answer. Panspermia is the opposite of Occam's Razor.

[joz]

I cannot recommend this channel highly enough. The narration, subjects and pacing are almost perfect.

[Xtariz]

I can't belive how your documentaries have so little views... there's allot of work put into these...

[Dontlicktheballoons]

Reminds me of an ancient Sanskrit proverb. "Be humble for you are of the Earth, but so to be Noble for you are of the Stars".
Also, it's five days into 2021.
I hope somebody looks back at this comment in a few years and is like, "don't worry kid it gets better."

[Mathis]

8:49 - always wondered why this is thought of without the consideration that lots of stars had to die to make complex elements that are required for complex tech. Like gold, iron, etc It seems more likely we are one of the first given the timeline we know (n=1)

[HeathenHammer]

If you think about it for a second, it’s clear that everything came from space. The water, the chemicals, everything. We’re just quibbling over timing it seems.

[wynweeardo]

i really love this channel.. nice presentation and narration -- it is very easy to understand.. probably my new fav channel!!

[adamstradamousdoe]

7:05 'SOFT PANSPERMIA' "accidental transmission of life" - sounds wrong... Kind of like didn't wear protection and forgot to pull-out type of scenario.... 😐

[mikeyoung]

I like the idea of the simple life form arriving in rocks from space. Then the mixing of chemicals over milllions of years in the oceans until the right combination of chemicals formed and an organism replecated.

[marcoantoniogalindolucches]

We're probably some alien kid's science fair project that probably got a C+ at best

[stitchgroover]

Really enjoying this channel and all the hard work and love that is obviously put into each video. Count me in to keep watching for years to come.

[adizmal]

I think of Carl Sagan's quote about anthropocentric conceit and provinciality when I hear people take a skeptical standpoint on even the physical possibility of ""We seem to crave privilege. Merited not by our works, but by our birth. By the mere fact that, say, we're humans, and born on earth. We might call it the anthropocentric, the human centered, conceit. This Conceit is brought close to culmination in the notion that we are created in god's image. 'The creator and ruler of the entire universe, looks just like me. My, what a coincidence. How convenient and satisfying.' The sixth century B.C. greek philosopher, Xenophanes, understood the arrogance of this perspective, here is what he said. "The Ethiopians make their gods black and snubbed nosed, the Thracians say theirs have blue eyes and red hair. Yes, and if oxen and horses, or lions had hands and could paint with their hands, and produce works of art as men do. Horses would paint the forms of the gods like horses and oxen like oxen'."

[monkeyslovewand]

I have a friend who believes we (humans) were seeded by Aliens. I tried explaining well if that's how life was created who created the Aliens who seeded us and then who seeded the Aliens who seeded them, etc, etc all the way back to the big bang? Meaning the the big bang would of had to have created intelligent life capable of interstellar space travel and bio engineering immediately for that to be true... he still thinks Aliens made us! Bless him.

[harishvyas]

Took preety long to load a video I was eagerly waiting for it .
Other great video this time explaining Panspermia.
Heard about it today I got to know lot about it. Keep up the good work.
Love your work and explanation.
Looking forward for next video.
Please upload soon.
Take care
Bye

[colinp]

When i hear the term panspermia I have a picture, in my mind's eye, of James T Kirk trying to spread his seed with every alien female he comes across.