Are We Alone In The Galaxy?

Are We Alone In The Galaxy? is a question that has been on people's minds for a very long time. It's a question that makes us think about the vastness of space and whether Earth is the only planet with life. With about 2 trillion galaxies out there, it makes you wonder if we are really alone even just in the Milky Way galaxy.

A new study from the University of Nottingham, published in the Astrophysical Journal, suggests that our galaxy could be home to 36 intelligent alien civilizations that can communicate. How did they come up with this number? They think this is actually a conservative guess. It's based on the idea that life forms on other planets in ways similar to how it does on Earth.

The scientists in the study think Earth isn't unique. They imagine other planets like ours, circling stars like our Sun, with civilizations that advance technologically similar to how humans have. They assume it takes about 5 billion years for intelligent life to evolve, leading them to estimate at least 36 civilizations in our galaxy.

Before, scientists used the Drake equation, which considers seven factors to estimate the number of intelligent civilizations. Those estimates were really broad, from none to a few billion. The new method refines this using more recent data and assumptions, suggesting there are likely between 4 and 211 civilizations that could talk to us, with 36 being the most likely number.

But finding these civilizations is a whole different story. These scientists say they could be thousands of light years away.

#alienlife #universe #sciencetime

[shikhamaurya]

Human: can't find alien 👽 aliens: can't find aliens 😔

[nicknguyen]

“We’re either alone in this world, or we are not. Both are equally terrifying.”

[Bobsk]

“The universe is a pretty big place. If it's just us, seems like an awful waste of space.” Carl Sagan.

No I don’t believe we are alone.

[BruceMusto]

It's a pretty low bar that we are setting if we are using our civilization as the standard for intelligent.

[jerrysanders]

Considering the vast distances between the stars and the technology we have today, and the the laws of nature that we cannot circumvent, even if we are not alone we are still alone.

[philrobson]

If Kepler 62B is covered by an ‘ocean’ one must ask of what material is this ocean. Is it salt water? Is it freshwater? Is it a stew of dissolvable chemicals? We must stop thinking of EXO planets as having environments similar to Earth’s environment.

[Amadioh]

I think this raises an intresting point, the reason people want aliens to exist is because we want to communicate with then and gain their technology but we are making assumptions based on nothing but our own imagination of what aliens would be like, there are trillion species on earth and yet hardly any communicate with each other so to have such optimism that when we discover inteligent life forms they would want to speak with us is i believe absolutely ridiculous because there as species that do have the same amount of intelligence on earth that never speak to each other

[ghostthereal]

How does this channel not have more attention

[Semirotta]

Considering how tiny thing planet Earth is and how tiny creatures we are, how even tinier creatures live around us and on us. I believe we are not the only living thing around, but I also believe we are living on something much larger we just absolutely cannot see nor comprehend it. Just as we look at atoms, the atoms would have no idea they are being looked at similarly we could be watched and have no idea it is happening.

[freequeencii]

I don’t think we are alone. Earth is not that special for it to be the only one like it to exist.

[pearlykisses]

if we are not alone then we are not meant to meet the aliens, because i feel like god or whoever created this universe created this immense distance between us on purpose

[TheAudacityPodcast]

Keep looking and we are gonna find something we wish we didn’t look for.

[longcastle]

Barriers not only include the wide distances between planets (where intelligent conscious self aware life forms like ourselves might exist), but also, the likely narrow time range in which species such as ourselves are likely to exist before going extinct. It may even be, perhaps, that species like ourselves are almost always destined to be no more than pin pricks on the time lines of their respective planets. Unless they choose otherwise.

[raystaar]

Without Earth's tilt, which causes the seasons, the presence of Jupiter, whose gravitational pull protects us from the thousands of asteroids, and comets in our solar system, and the presence of our outsized moon, humans would probably not have evolved. The likelihood of similar coincidences having occurred in other solar systems seems remote. I'm guessing, if there are other civilizations in the Milky Way, there probably aren't as many as this video suggests.

[Lousy-Looter]

We know God created many lifeless planets and we know he created other spiritual beings as angels, so no we are not alone in the universe, and maybe just maybe we are the first planet that God has chosen to create physical life?

[elkagames]

We should really focus on the Milky Way and Andromeda to understand where we are. Other big galaxies are further away.

[thekingofmojacar]

Nice topic and video, thank you "Science Time" !
we are not alone, we have our spirits... 😇
I think it's a pretty logical idea that this HUGE cosmos is full of all kinds of life forms and evolutionary occurrences. This is all just another expression of the universe...

[BarryGoldberg-wrbf]

I don’t think we should wish for being visited by being from another planet. Because if they could get here we might as well be in the Stone Age. We would have no answer if they wanted to take this planet from us.
My first thought would be they would be hostile

[Kicki_Granback]

💖I have met two aliens in 1984, a female on July 20 she was with me for two days I got some help from her, she had brown hair. Three months after a blond male who floated forward instead of walking like we do. Me, a friend and my 2 children were with me too. I have seen many things that have to do with the extraterrestrial, both outside and inside my home. I have had an incredibly rich and wonderful life. Thanks to them.💖

[stevegordon]

Imagine an ant in England and an ant in Australia do you think they'll ever meet that's basically the chance of life meeting in the observation universe!