Who Owns the Land on Mars?

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iStock


Nicolas Nelson:“Who owns the land on Mars? Suppose I go there and [claim the planet by right of conquest or first discovery] and say ‘Hey, I’m selling the whole planet...'"

Sorry, friend, can’t do that.

The Outer Space Treaty of 1967 clearly states that all extraterrestrial real estate “belongs to all mankind” and cannot be claimed as sovereign territory by any nation-state. That kind of sovereign ownership used to be fundamental to any subsequent private ownership claims: the “crown” (or whatever government) had to deed it to you somehow. Nowadays, land ownership can derive from a legal regime, either a nation’s constitution (which inherited “sovereignty” from the old monarchies) or by an international treaty that establishes such a regime … which in this case is exactly what the Outer Space Treaty does.

On the other hand, the OST-1967 does not make private ownership illegal in space or on other planets. Like any good legal regime, the OST-1967 laid a foundation, and later laws passed in nations that are signatories to that treaty have been building upon it. For instance, both Luxembourg and the United States of America have passed laws that clarify property ownership of “space resources,” whether acquired in free-fall (like asteroids, comets, or even the solar flux that photovoltaic panels turn into electricity) or on a planetary surface, or beneath it (like any resources you collect on Mars … or Venus or whatever).

So, as I understand it currently, you can land on Mars and set up your settlement: you own all the stuff you brought with you, but not the land you plopped it onto.

But as your construction bots bulldoze regolith up onto your inflatable dormitory to protect it from radiation, that regolith is now a “resource” that you’ve collected and are using. Now you own that, too.

Your Sabatier-reactors (no radiation, don’t freak out) and your RWGS plant begin sucking in the thin Martian atmosphere and making oxygen, methane, and water out of it. You drill a well down to a geothermally-heated aquifer deep beneath your settlement and use that well to generate electrical power, heat your settlement, do cool science with it (look for microbial life!), and very carefully filter it so you can add it to your water supply: all those “resources” now belong to you.

But you’ve made it complicated now. You have drilled a well and have usage rights to that well… does that give you “water rights” to the giant aquifer you tapped? To some degree? You have built so much stuff on a clearly-delineated area: even though you cannot own it like “real estate,” haven't you established a whole blanket of rights to it just as if you’d homesteaded it or staked a mining claim?

You have a launch and landing pad nearby (not too nearby) with radar telemetry around it: you don’t own the rights to the open air above your launch pad because you own the pad, but you can assert those rights because of the way you use that resource: your future neighbor can’t build a bridge right over your launch pad because it would interfere with your ability to use the improved space resource that belongs to you.

Your rude neighbor could be an idiot and set a fragile inflatable dome next to your launch pad, since you can’t point to a property line and say “behind that, fella”, and since it does not physically interfere with your use of your property. You have the right to go on using your preexisting launch facilities and roast his dome. In that way, it isn't a question of property rights but wisdom versus idiocy.

You can see that once people actually begin “harvesting” and “improving” space resources, property laws will mature pretty quickly. They haven't yet … but the fundamental legal regime is clear: Mars “belongs” to everyone—and therefore, in a practical way, to no one.

This post originally appeared on Quora. Click here to view.

6 Protective Mask Bundles You Can Get On Sale

pinkomelet/iStock via Getty Images Plus
pinkomelet/iStock via Getty Images Plus

Daily life has changed immeasurably since the onset of COVID-19, and one of the ways people have had to adjust is by wearing protective masks out in public places, including in parks and supermarkets. These are an essential part of fighting the spread of the virus, and there are plenty of options for you depending on what you need, whether your situation calls for disposable masks to run quick errands or the more long-lasting KN95 model if you're going to work. Check out some options you can pick up on sale right now.

1. Cotton Face Masks; $20 for 4

Protective Masks with Patterns.
Triple7Deals

This four-pack of washable cotton face masks comes in tie-dye, kids patterns, and even a series of mustache patterns, so you can do your part to mask germs without also covering your personality.

Buy it: $20 for four (50 percent off)

2. CE- and FDA-Approved KN95 Mask; $50 for 10

A woman putting on a protective mask.
BetaFresh

You’ve likely heard about the N95 face mask and its important role in keeping frontline workers safe. Now, you can get a similar model for yourself. The KN95 has a dual particle layer, which can protect you from 99 percent of particles in the air and those around you from 70 percent of the particles you exhale. Nose clips and ear straps provide security and comfort, giving you some much-needed peace of mind.

Buy it: $50 for 10 (50 percent off)

3. Three-Ply Masks; $13 for 10

Woman wearing a three-ply protective mask.
XtremeTime

These three-ply, non-medical, non-woven face masks provide a moisture-proof layer against your face with strong filtering to keep you and everyone around you safe. The middle layer filters non-oily particles in the air and the outer layer works to block visible objects, like droplets.

Buy it: $13 for 10 (50 percent off)

4. Disposable masks; $44 for 50

A batch of disposable masks.
Odash, Inc.

If the thought of reusing the same mask from one outing to the next makes you feel uneasy, there’s a disposable option that doesn’t compromise quality; in fact, it uses the same three-layered and non-woven protection as other masks to keep you safe from airborne particles. Each mask in this pack of 50 can be worn safely for up to 10 hours. Once you're done, safely dispose of it and start your next outing with a new one.

Buy it: $44 for 50 (41 percent off)

5. Polyester Masks; $22 for 5

Polyester protective masks.
Triple7Deals

These masks are a blend of 95 percent polyester and 5 percent spandex, and they work to block particles from spreading in the air. And because they're easily compressed, they can travel with you in your bag or pocket, whether you're going to work or out to the store.

Buy it: $22 for five (56 percent off)

6. Mask Protector Cases; $15 for 3

Protective mask case.
Triple7Deals

You're going to need to have a stash of masks on hand for the foreseeable future, so it's a good idea to protect the ones you’ve got. This face mask protector case is waterproof and dust-proof to preserve your mask as long as possible.

Buy it: $15 for three (50 percent off)

At Mental Floss, we only write about the products we love and want to share with our readers, so all products are chosen independently by our editors. Mental Floss has affiliate relationships with certain retailers and may receive a percentage of any sale made from the links on this page. Prices and availability are accurate as of the time of publication.

What Do Pets See When They Watch Television?

This dog would like to turn off Netflix's autoplay feature.
This dog would like to turn off Netflix's autoplay feature.
Amatore/iStock via Getty Images

In 2012, a television commercial aired in the UK for Bakers dog food that was conceived and produced specifically to attract the attention of dogs. The spot used high-frequency sounds that are inaudible to human ears. In theory, the dog would be so captivated by the advertisement that owners would take note and perhaps purchase Bakers for their next meal.

This didn’t quite work. Many dogs failed to react at all, proving that when it comes to television ads, humans may be more impressionable than canines.

While pets may not be so easily manipulated, they still find the television screen interesting, sometimes reacting to other dogs, animals, sounds, or images. But what is a dog really seeing when they tune in?

When it comes to color, television is no different from reality for a dog. They have dichromatic vision, which means they see the world through the range of two primary colors, yellow and blue. (Humans have trichromatic vision, able to see the full color spectrum.) Cone cells in canine eyes are also believed to blur their sight to a degree. More importantly, dogs process the frame rate, or “flicker fusion frequency,” of screens differently than people. Humans can detect movement at between 16 and 20 frames per second. Dogs need 70 frames per second or more. If they’re looking at an older television, it might resemble a flip book or even a strobe light effect to them. (Modern sets have a faster frame rate, which is why dogs might be more interested in your high-definition television.)

That helps explain the visuals. What about the content? Typically, dogs will react to the same things that would draw their attention in a room—barking, squeaking toys, or commands. In a study published in Animal Cognition in 2013, nine dogs were observed to see if they could pick out the face of another dog—regardless of breed—on a computer screen instead of another animal or a person. The dogs were rewarded with treats with a successful choice. Though the sample size was small, it indicated dogs can recognize other dogs on a screen. (Which you likely already knew if you’ve ever observed your dog suddenly on alert when a canine appears on camera.)

If your dog used to get excited by another dog on television but has since lost interest, it’s possible they simply became desensitized to their appearance, realizing the image in front of them isn’t going to move out of the boundaries of the monitor.

Content unrelated to dogs might not be of much interest. In a 2017 study published in the International Journal of Human-Computer Studies, dogs presented with three different viewing screens didn’t exhibit any particular preference for one over the other. If they were shown three screens at one time, they seemed uninterested in watching anything at all.

The study also noted that dogs had a limited television attention span. Rather than mimic the binge-watching habits of humans, dogs prefer to glance at a screen for a few seconds at a time. But that behavior could also be breed-specific. Dogs bred for hunting might be interested in moving objects, while dogs that rely more on smell might be indifferent.

And what about cats? In a study published in Applied Animal Behaviour Science in 2008, 125 shelter cats were given a television to view for up to three hours a day. The cats were split into five groups and given a variety of programming to watch, from humans to footage of prey to a blank screen. On average, cats spent just 6.1 percent of the observation time watching the screen. When they did, it was mostly to focus on the prey.

Because cats may react to images of birds and rodents on television, owners should avoid letting them watch unattended. You can also secure the set to a wall to make sure they don’t knock it down.

For the most part, dogs and cats are far more interested in what’s going on in the real world compared to what's on TV. We could probably take a lesson from their limited screen time.