Are We Alone? FULL EPISODE | NOVA Wonders | PBS America

From the Kepler mission’s discovery of extrasolar planets, to the probing of planetary ecosystems and the high-tech telescopes under development, the prospects for finding life beyond Earth have never been stronger. NOVA Wonders checks in with the explorers now searching the galaxy for life and intelligence on other planets and asks, if we do find other life in the universe…then what?

Join astronomers and engineers on a hunt for life on worlds near and far. Discover the next generation of telescopes, probes and robots that are getting us one step closer to answering one of humanity's biggest questions: Are we alone?

About NOVA Wonders: Reporting from the frontiers of science, NOVA Wonders follows researchers on the winding paths of uncertainty and the unknown. From the mysteries of astrophysics to the technologies that could rival or surpass the abilities of the human mind, this series reveals how far we’ve come, how we managed to get here and the remarkable scientists who are transforming our world and the future.

[yonasamman]

If there are other lives in the universe, I hope they are not as stupid as us.

[francoisona]

Is this documentary targeting people with very low IQ? The narrative, imbecilc music treats its audience like we are 5 yrs old.

I am writing from the UK and interested to know if it's done intentionally to capture a wider US audience. Very sad state of affairs if so.

[nazaudy]

This video is deceiving, published 2 weeks ago at me the time of writing and saying that the JWST still has not been launched? how old is this video? still nice info

[jedabenel]

The stupidity of the unintelligent man. Destroy the house in which we live mother earth....and invest billions to search for life in the universe.

[fredhoupt]

this documentary is several years old.

[ritukiran]

A Cepheid variable is a type of star that pulsates radially, varying in both diameter and temperature and producing changes in brightness with a well-defined stable period and amplitude.

[ypyp]

These documentaries used to be good, why did they have to dumb them down.

[jedabenel]

If there are other intelligences in the universe? What do they have to look for in a planet where human animals live, where wars, destruction, hatred and poverty are still raging.

[guitarsb]

Didn't like the video production.

[BrokenhornKT]

Why did you not Explain the " Dyson Sphere" Theory??

[drtalkboxsa]

If there happens to be creatures on Europa, do we call them Europeans? Or Europans?

[SJG-]

How the hell where we came from??? The same way Christopher Columbus came on our side of the continent.

[samuelnason]

Tabby's star, to explain that, dimming so much, i would think my guess is there is a Black Star orbiting it, not a black hole. too my best guess, i don't think there are black stars in theory, but it could be.

[robertcleminson]

Same old stuff its good but need new material tell us something new.

[sakolponpojna]

Object, gravity and zero Gravity are about everything in space

[lordbacon]

The quality of NOVA shows has dropped significantly.

[cchen-wqnm]

we are not alone. we just can't find each other due to the vastness of space. what if they use other mode of communication rather than radio signals? or some planets still have primitive life.

[vivekpraseed]

Anyone know the identity of the individual at 0:36? In the video, he says "buiding an artificial intelligence is a crowning achievement of humanity"

[richarddoonrod]

If we knew that we are not alone, we would not ask all the time. Nobody knows. I correct myself, God knows but he is hard to get hold off.

[narimannourizadeh]

Even this severals old the information is mind blowing wwooww thank you for sharing this video