@astro_alexandra: Could intelligent species have lived and gone extinct in the Milky Way? Are aliens living now? #space #Science #nasa #edutokcontest #learnontiktokcontest
it would be great if you explained Drake's equation 😁
2026-06-19 20:38:27
206
JAMES GT :
It's not just possible, it's numerically impossible for earth to be the only planet in the universe to have intelligent life.
But due to the unimaginably vast expanse of space we will never make contact with any other species out there.
2026-06-20 01:26:49
330
Anonymous :
That "we'd never know they existed" point hits hard. It reminds me of the rainforest analogy for the Fermi Paradox. From far away a rainforest just looks like a green blanket, but get up close and it's absolutely teeming with life you couldn't see before. Maybe the galaxy is the same and the silence just means we're still looking at the canopy from a plane. Would love a breakdown of the Drake equation variables btw.
2026-06-19 20:52:31
180
Dutch Cossack :
Given the fact that life on earth survives in the most harsh conditions, I’d say that if there is a possibility for life to emerge anywhere in the universe, it will. Whether we can recognise that as life, is a different question.
2026-06-19 20:30:27
88
Antonio Zaragoza :
Please talk about what the numbers are
2026-06-20 05:06:48
33
Jazzyyjay :
I have no one to talk about this with 😭
2026-06-20 01:27:21
7
Craig Mac Sax :
Yes. This is the point no-one ever talks about. It's always "Where are the aliens", and never "*When* are the aliens".
✌🏼💙🎶
2026-06-20 00:20:02
57
Gaius M. Verus 🇨🇦 🇺🇦 :
That's my thinking… Two huge factors that must be considered when trying to find life forms that would be similar enough that we could identify – the vastness of space, and the ridiculously short time frame we've been looking.
2026-06-20 05:10:03
7
Vproject0 :
Elon Musks net worth is more than this btw
2026-06-21 07:09:02
5
Leyna :
yes, pretty please walk us through the equation 😁
2026-06-26 23:17:26
0
Jake :
I think it is so self centered to believe we are alone in the universe
2026-06-19 20:50:11
11
Nicole McCarthy :
It’s such a bummer we will all just keep missing each other 😭
2026-06-26 21:54:17
0
YourHomie_Chris :
Selfish to think otherwise
2026-06-26 08:47:12
0
Kevin Bond :
the more I learn about the Universe the more I'm convinced that we may be alone. Like a cosmic accident or the universe experiencing itself.
2026-06-25 16:10:30
0
Oussama.abb :
Without warping spacetime, there is NO WAY for us to ever find out. Period
2026-06-20 00:08:19
13
user958372958350 :
We are alone but nobody wants to accept it
2026-06-19 21:12:17
6
🌎🌍🌏elle :
yes please !! and explain to us like we are 2 years old 😂
2026-06-19 21:02:37
24
Glen :
if there was a creator that started time, and they put away $50 for me for every year of existence, I'd still have less than elon
2026-06-22 14:48:35
11
Ate Pichu 💫 :
this is the main reason why i don't believe, aliens ever reached us or the government is keeping aliens lmao that's not possible. they can never reach us nor we will ever reach them
2026-06-19 20:48:24
29
David Rush 🇨🇦 :
no way this is true! I was told 30 years ago that the universe is 13.8 billion years old and you’re telling me it’s the exact same age today? Come on man!
2026-06-19 20:42:10
41
rwchrist1960 :
First generation stars did not have rocky planets because only hydrogen existed. The heavier elements needed those first stars to make the elements needed to make rocky planets. Even second generation stars probably didn't have rocky planets. I think our sun is either a 3rd or 4th generation star.
2026-06-19 22:07:24
7
To see more videos from user @astro_alexandra, please go to the Tikwm
homepage.