The Scientific Evidence For Life Beyond Earth | Spark

For centuries, mankind has asked the question: "Are we alone in the universe?". Sadly, this question remains unanswered, at least for now. Thanks to modern science and the smartest human minds, we are closer than we ever have been to solving life's greatest puzzle.

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[shutup-gcyk]

Why is the background music so obnoxiously loud? Please tone it way down for the next documentaries you post.

[relentless_]

Too much background audio. Cannot follow easily, breaks the immersion of your presentation.

[SGalli-ffnf]

I liked the guy who said that, scientifically, we honestly don't know how life began. Humans can be so arrogant...nice to find one who is humbly honest.

[mountainjeff]

Funny how we're going out of our way to not contaminate Mars but we treat our own planet like a toxic waste dump.

[SimonWillcockAntiques]

Shuffling a pack of just 52 cards has outcomes to 8x106^7 ….basically every deal ever dealt will be unique. Now put that into a planet format and the factors needed for life….. a trillion billion might not come close to one holding life

[ryandubyah]

I always enjoy these videos, especially those about finding life on other planets.

I understand that what we know of life on earth is that it’s carbon based, but I really do feel that we’re heavily hindering our search by only looking for carbon based life.

There are so many potential different types of life out there that a reasonable number would be too high to even estimate. I just wish we could think outside of our own collective box in this sense

[sugreev]

There is certainly life out there in the observable universe. Infinite planets with infinite species, in different stages of evolution. But the Universe is just too vast for us to ever encounter or meet extraterrestrial life.

[JandiFX]

It's the sound effects and accent that secretly triggers you... 😐

[ioanbota]

Really I like this video so so much its so interestyng

[gregsscubavids]

Bring back prof Kranendonk for future Sparks. Great balance of enthusiasm, clarity, and careful optimism. Wish I’d had him for lectures.
Rocks hurtling through space have the makings for organic life? Where’d that contaminant originate from? Damned chicken and egg every time. And if those contaminants are raining down constantly on the planets isn’t worrying about our contaminating things a bit useless? Rhetorical. I know there’s a difference between what’s been so far found in space rocks and the corona virus transferred from a lab tech to one of the landers.

[imacmill]

Why is this video longer than 5 seconds?

[stellarwind]

I’ve always been perplexed by the notion that we can so confidently declare that life should arise on other planets, while at the same time lacking any semblance of an explanation for how it arose on our own.

[fglatzel]

The ocean is full of life and here comes this "Professor" claiming that life can't thrive in water.
Who invited this guy?

[rogercraven]

Cant listen to this . The music is FAR TOO LOUD.

[fizzyplazmuh]

Background level is perfect. I see no problem.

[fumanpoo]

The question is still if. Too much BS about exo-planets in habitable zones. Show me a microbe or go home.

[gregorysagegreene]

Life is a localized complexity-increasing, anti-entropy machine.
They just 💩-canned the MSR today 04-15-24.

[gregthegroove]

I have no doubt there’s life everywhere. Intelligent, simple, etc. the creator of the universe has made it this way and the vast distances don’t allow us to meet anyone. There’s a reason why, who knows. Perhaps every time civilizations meet, it’s quite a bad bad bad thing? So the creator just made it impossible to meet. If there was life in our own solar system alone, I doubt we’d find it currently. For all we know, they could be living it up on Europa, for the last 5K years and we just wouldn’t know 100%.

[jaybanger]

Look no further, they are already here.

[ricardoorellana]

Magic school bus theory is my proposal explanation for origin of life