Big Space Questions | Unexplored | BBC Earth Science

Who owns Mars? What happens when we meet aliens? Should we mine the Moon? Dr Josie Peters and leading experts explore the boundaries of our knowledge and the latest scientific discoveries as they answer five of the most curious celestial questions.

00:00 Should We Mine the Moon?
08:41 Who Owns Mars?
16:24 How Can We Survive On Mars?
24:19 What Would Actually Happen If An Alien Civilisation Made Contact
32:48 Wormholes Are Real
38:01 Black Hole Information Paradox

[Jackson-pugd]

Josie you completely de-throne neil da grass tyson as the sexiest... space person!

[osc.]

I absolutely loved this video! I just became a big fan of Dr. Josie. I am looking forward to watching more content from her soon!

[AlexMacartney]

These comments are an example of some seriously smooth brain brilliance!

[FrankBishop-jxzd]

How to deal with global warming

Step one : introduce more rays of light from the moon to the earth 😂😂😂

[TheLastStarfighter]

This is what legends do with their spare time 🏆

[DwainDwight]

we are at least 50+ years away from mining anything on the moon.

[SteveMcGreen]

just a tiny correction about Gadolinium. It is only used in MRI (magnetic resonance imaging) as a contrast medium. In x-Ray diagnostic (incl. CT) iodine compounds are used for this purpose.

[CROCHET]

Josie why don't you post videos on your channel? You are sucha n awwesome narrator.

[michaelccopelandsr]

My idea so I get to name it! Voyager 1 is now in interstellar time or "Mikey's Time." "V-ger's" message is sped up now that it's outside our suns time bubble or "Terran Time."  It would be faster still if "V-ger" sent a message from beyond the Milky Way's time bubble. (That name is still up for grabs.) Then there's Outside the Local Group time bubble, so on and so on until we get to the, "True Interstellar Time Standard."  Now that "Vyger" is in interstellar space, it's also in the Milky Way's STANDARD, faster moving, interstellar time or "Mikey's Time."  This can be proven by turning off everything except its clock and transmitter.  Have "Vyger" and the IP read time for as long as possible.  They WILL show the flow of time speeds up the further away you from any celestial bodies.  Until you reach the time standard.
•Our sun's time bubble: "Terran Time" we know and have measured.
•Milky Way's time bubble or "Mikey's Time." The rate/flow of TIME outside any influence but within the Milky Way: We just got there and are still figuring. Wild guess I'd say time will increase in speed, now and until Vyger is outside the Ort cloud .007-.07% faster, maybe. Just for reference.
•Local Group's time bubble or the rate/flow of time outside of any influence but within the Local Group: Name still open and unknown. Wild guess .08% to a couple seconds faster, maybe. Used just for reference.
•Outside any influence in the, "True Interstellar Time Standard, " or...;-P Name NOT up for grabs BUT just begging to be measured. The rate/flow of time is fastest here so, surfing time here is choice. Though it's best to have your motor boat. ;-P
A minute is a minute in all. It's the rate/flow I'm talking about.
The Milky Way's Interstellar Time Standard will be known as, "Mikey's Time."
Pass it on, please and thank you.

[brightax]

wow didn’t know that much oxygen in the moon

[billybobjohn]

There're so many solar systems out there that every single person on this planet could own one.

[damianGray]

Could be wrong, but the 1/3rd gravity on Mars just means workouts have to be 3x intensive for the same benefits. If you were bench pressing 100lb, now you have to bench press 300lb. If you were running for 1mi, you would have to run for longer. It's really only micro gravity environments that would cause you to get weaker.

[joaquinpraveenvishnu]

Hell no! We've already mined enough on Earth, let alone other celestial bodies.

[avenuestx]

It's 45% oxygen hail yeah we should mine the moon but like you said, with many precautions and regulations in place

[imperatorshekwolo]

Anytime Countries start asking what if another country does this or that, the possibility of war accelerates.

the best way to kill Earthlings is to remove the moon

[jimmyjamjar]

"radio waves, television, microwaves..." So RF energy?

[tylerbrown]

In this video there is a frankly embarrassing lack of consideration about 1. what mining and energy companies have done that is illegal and they don't care because they won't be meaningfully held accountable, and 2. what mining and energy companies have done that is legal but morally and ethically wrong.

This videos' take on concerns about the human impact on the moon categorically doesn't acknowledge that mining and energy companies don't have to follow the law, they in many ways write it however they want through political donations and the inherent power that comes from being a massive mining or energy company. Mining and energy companies under capitalism will continue to thoroughly exploit natural resources with zero concern for the broader impacts (treating being caught for illegal acts as a cost of business), expecting that tweaking a couple of laws around mining the moon is going to keep them from doing so there is absurd. It would be a betrayal of their basic fundamental aim, to increase shareholder value no matter the consequences. Unleashing massive corporations on a legal wild west such as the moon is an AWFUL idea given the track record of how this story usually goes.

Further, what is the "energy crisis"? Do we have an energy crisis? I think it is just as easy to suggest that we have a resource exploitation crisis and the kind of people that look at the moon and think "we should mine that" are exactly the kind of people that got us into this crisis of resource exploitation/utterly trashing the resources of this planet. I think the moon is fascinating, but to identify it first as simply a resource to be mined is childish.

If China has the rare earth minerals we need.... and we see going to the MOON and back as a better alternative than figuring out some kind of trade deal with them then the important thing isn't the rare earth elements on the moon it is the stunning lack of effective governance and vision of humans on earth.

[RepublicIndonesia-njkj]

I watch this channel to see the universe planet stars but what i found the girl picture talking

[Cyclegladiator]

I hate to break it to you, but humans are NOT going to Mars! 😂 if people can’t live on the bottom of the ocean, what makes one think they can live on Mars?