Helicopters of Mars

This is really exciting. Perseverance is on its way to Mars, but hey, just another rover.

But Ingenuity is a Martian Helicopter! How exciting is that? I can’t wait to see it in action.

Ingenuity will be deployed from under the belly of Perserverance, then take off using two counter rotating blades. It is repowered by a solar panel on the top, and keeps in communication wirelessly with Perserverance, to receive instructions and send back aerial photos. So as long as it stays within range, it might operate for months.

The Futurism article includes a video simulation of Ingenuity in action.

https://futurism.com/nasa-mars-helicopter

This will be the first time that an aircraft has been flown on another world, and the potential is enormous

The vehicle has to be small and light, it will operate in an atmosphere that is 0.6% as dense as ours. but a similar type of vehicle, deployed, say, in the Venusian atmosphere, or Titan, one of the moons of Jupiter, could be much larger, and fly for months without stopping.

Starship Test

So SpaceX has conducted its first flight test of its next gen passenger capsule, StarShip, which will be able to carry up to 100 people at a time when it goes into operation.

They flew it 150m into the air, then extruded landing struts and landed it.

But what, precisely, were they testing? It was unmanned and looked like pretty much just the shell of the vehicle

Deploying legs and landing? Done that before. The engines? It used one Raptor engine, which is already being used in live missions. This test used just one engine, when the final vehicle will use six together

I just cant figure out what they were testing

Second Falcon Heavy launch a complete success

The second flight of Space X ‘s Falcon Heavy rocket took off earlier today and looks to have been a complete success .

It delivered it’s Arabsat payload to orbit then landed all three of it’s boosters safely back to the ground.

Seeing the footage still gives me a thrill. Such a massive vehicle , such an amazing feet to land the side boosters together, side by side. It reminds me ot my childhood, like a scene out of Thunderbirds

https://youtu.be/HVqWEoyiaBA

Space Art in Dorset

We spent last weekend in Lyme Regis. Cold weather for walking, but fantastic restaurants and coffee shops.

We were also lucky enough to come across a wonderful art gallery run by Richard Bizley. Richard has a really vivid imagination, his paintings cover all sorts of atronomy and space themes. I particularly liked the ones focused on what life could really evolve as in differing types of planetary environments. We bought a picture that reminded me of the film Avatar, though the picture predated it.

Worth a look, if you have time

www.bizleyart.com

Capture

 

Commercial Motivations for Space Colonisation

In the modern world, most things are driven by economics. If something can make money, especially if its a lot of money, someone will make it happen.

And so it is with space exploration and colonization. The commercial opportunities are the most often quoted reason why humanity’s expansion into space is inevitable.

Think of all that space, that real estate, available on the Moon, the asteroids and on Mars. And all those resources buried under the surface.

The most often quoted precedent for mass colonisation of “new lands” is the settling of North America. America had vast empty spaces, huge supplies of coal, metal, timber and wild animals to support the countries development, and few local natives to hinder their expansion. The settlement of the country by the Europeans and its development over the next few centuries lead to the emergence of the greatest single industrial power in history.

So who’s to say it can’t happen again on, say, Mars?

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A Martian colony would need support from Earth for generations

Well, there are differences. In the Americas the new colonists could fairly soon live off the land, with food and lumber readily available. Mars will be dependent on Earth for generations for food in the short term, but in also the long term for complex tool and medicines, and minerals and metals that aren’t readily available on Mars.

America was able to export tobacco and grain back to Europe from fairly early on, giving a financial return to those who had paid for the transporting of the colonists. Mars will have nothing to offer that couldn’t be more cheaply and easily produced on Earth. The cost of sending metals mined on another planet home, for example, would be staggering (the one possible exception to this might be mining Helium 3 on the Moon. This is a isotope of Helium that would be essential to Fusion power plants, if we can ever get this amazing new form of power production working. There’s very little Helium 3 to be found on the Earth, but much more of it is on the surface of the Moon).

Some people argue that the divergence of cultures between Mars and Earth will throw up new and saleable cultural, artistic and technical innovations. This is a long shot. There is no precedent for this on Earth. Even for America the rate of technical innovation was due to the growing huge industrial base, not because of its geographical distance from Europe.

Colonizing Mars, or the Moon, will not be driven by profit from mining or industry.

Mining the asteroids is another oft quoted source of potential massive profits from space expansion. Companies like Planetary Resources and Deep Space Industries suggest there are trillions of dollars worth of rare metals in asteroids circling the sun in near Earth orbits, and certainly the prospects are exciting. But the technological challenges  and cost of mining asteroids and bringing the results back to Earth shouldn’t be underestimated.

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Planetary Resources proposed method of asteroid mining

But even if mining off planet were profitable, would it require a permanent space colony with thousands of colonists? All of this activity must surely be possible using just a few hardy engineers commanding an army of semi-autonomous robotic miners.

It’s been suggested that in the future mass industry will be developed in Earth orbit, to take advantage of the space available, the zero gravity environment, and imported metals mined from the asteroid belt.

This I just can’t see. If more room is needed for industry, there’s plenty on earth that’s more hospitable; even factories floating on the surface or under the sea would be easier to build and to service.

The only likely advantages of industry in zero gravity would be for producing specialist crystals and possible 3D printing human organs. We wouldn’t need massive orbital factories for these, and in any case, the bigger the space station the more they would generate more vibrations in their structures and defeat their own purposes.

Space tourism has some limited scope for feeding the expansion of the human kind. People will want to visit hotels in Earth orbit and travel to the moon once these things are possible, and even visit other places if the travel time were to be brought down from months to weeks. I could see the growth of a limited market here. But would the growth of America really have taken off if people just traveled across the Atlantic Ocean for three months, stayed for a fortnight, and had to come straight back again? Probably not.

So I’m sad to say, I don’t see the business case stacking up for any of these scenarios. If colonisation of the solar system is to happen, the profit motive will not be the main driver for it.

Do Humans Have a Future in Space?

Will the Human Race fulfill its destiny, and move out from this small blue planet and colonise other places in the solar system, and one day even travel to the stars?

I, and many other supporters of space exploration, and even fans of Star Wars and Star Trek and the like, would certainly hope that it will happen. Surely, it’s inevitable. Humanity has always been a race of explorers and colonists, filling every corner available on our own planet. It’s only a logical progression that we will one day move out and colonise the other planets and moons available nearby.

Well, I got to thinking, “Surely” and £2.00 will get you a cup of tea. “Surely”, on its own, is just another word for “Hope”

It would be interesting to take a look at our real prospects for the future of human space exploration and long-term settlement of the solar system. And to do that, we must look at the different potential drivers for doing so, and how they might shape this enterprise. After all, becoming a multi-planet species is going to be the most expensive thing we’ve ever done.

We will look at the following drivers

  • Scientific Research
  • Commercial Gain
  • International Competition
  • Prestige Projects
  • The Merchant Princes

Scientific Research

Since the start of the 1970’s, scientific exploration of space, the solar system and of human kind’s ability to live in the harsh space environment have been the primary focuses of space exploration activity.

Robots and space probes have visited most of the planets and landed on the more accessible ones, dwarf planets, comets and asteroids have been visited, and probes sent to investigate our sun.

Apollo

We’ve learnt a lot about our cosmic neighbourhood, and there’s undoubtedly more to learn. During this time, however, the scope of human space exploration, humans actually going to new places and “placing boots on ground”, has actually shrunk. Since the end of the Apollo era, since 1972 when the last astronauts visited the moon, we have never sent a single person out of Earth orbit.

Why is this?

Sending people into space, let alone to other planets, is much more difficult than sending robots. A human mission to Mars, for example, would probably need a minimum crew of six (they’d need a variety of people to be able to mix with, if they’re going to be locked in a tin can for three years).

They would need to take all their air, food and water with them, which even allowing for some limited recycling, would be a significant weight. And they’d most likely want to come home afterwards, which means taking all their fuel for the return trip with them as well.

All of this would need a spaceship of a hundred tons at a minimum. A robotic probe needs none of the above and can weigh less than a ton.

All of this means that a crewed mission will always cost several orders of magnitude more than a robotic one.

Any endeavor is going to be extremely costly, for example, this would be my best guess at a price list for missions to Mars:

Sending a one-off crew to stay a few months and come back $100 Billion
Building a base where the crew can have more room, and more varied science can be carried out $300 Billion
Building a permanent settlement, where people can go, live, and have children $1 Trillion

Curiosity

In comparison, NASA’s Mars Curiosity Rover cost around $2.5 Billion, expensive for a robotic probe, but cheap compared to a human mission.

NASA always claims that the reason to send people away from Earth is because they are better at searching and carrying our experiments than robots are. On Mars, they’re specifically talking about looking for signs of life, whether currently living bacteria or fossils of bacteria that were alive in the distant past.

But they’ve been talking about sending astronauts to Mars for the last fifty years, and still aren’t close to doing so. It’s too expensive and too risky.

Science, on its own, can be done by robotic probe. Science, on its own, won’t be a reason to send humans anywhere!

 

 

Next Blog: Commercial Gain as a driver for Human Space Exploration

The Medical Realities of Space Travel

Most space geeks would like to believe that all of the difficulties in interplanetary travel are to do with technology, and once you’ve cracked that, all you have to do is jump in your rocket ship and go.

The reality, unfortunately, is a little different. Hardware might be difficult, but human beings are frail and the solutions to their issues can be much more complex and challenging.

A lot of the reason why NASA has been parked in orbit in the ISS for the last twenty years is to research the human factors issues that a journey to Mars would present (okay, the ISS is a lot cheaper that Mars, as well).

At NASA’s request, the US National Academies of Sciences, Engineering and Medicine have just completed and published their latest review of NASA’s research in this area.

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Astronauts exercising on the ISS to mitigate bone and muscle loss

The report covers the areas you’d expect, physical impacts like muscle and bone loss, radiation damage and permanent damage to eyesite. It also looks at psychological impacts of living for long periods in a confined space, with only the same, few people to interact with, with no real time communications possible with family and friends back home.

These issues can only multiply when put together; if you’re having morale problems on the trip anyway, try throwing in having problems with eyesite and circulation.

Captain Kirk never had these problems!

SpaceX to Mars

This is amazing news from SpaceX. They plan to send the new Dragon capsule to Mars and land it on the surface within two years!!
A couple of years ago I would have said this guy was off his chump. If it was anyone but Elon Musk saying it, I still would. But he guy has a serious record for doing what he says he will in the area of space innovation. His was the first (and still only) commercial vehicle to be allowed to dock with the International Space Station to deliver supplies. His company is the first to re-land the main stage of a rocket after launching something to orbit, so that it can be reused (and therefore make space launches cheaper).

SpaceX eventually want to use the Dragon 2 as part of a vehicle to take humans to Mars

I don’t doubt he can do this. He’s been working on the new, big, booster for a while, along with the new, larger, man rated dragon capsule. Two years might be tight for finishing them, but I wouldn’t be surprised if he did it in four. I might be more surprised if he didn’t.Now don’t get me wrong, sending an unmanned capsule to land on Mars is a long, long way from sending people, let alone bringing them back. But in people’s psyche it will seem like a huge milestone towards it, actually the first time we could say we were progressing towards a human to Mars mission since the end of Apollo.

Go Elon!!

Trailing growing crops on Mars

Wageningen University & Research centre in the Netherlands was have published details of their second their second round of experiments growing a variety of crops in simulants of Mars and Lunar stimulants. Ten crops were harvested, including Tomatoes, peas, rye, garden rocket, radish and garden cress.

  
Both stimulants were provided by NASA, so should be pretty near the mark.

The results were unexpectedly positive, especially when freshly cut grass was added to the soil to add nutrients and aid drainage. The Mars results especially showed statistically similar results to the Terran control sample.

One important difference, though. The soil samples contain heavy metals such as lead, arsenic and Mercury, which if they find their way into the food produce, would make them a little hard to swallow (!). Nevertheless, this is very interesting news for potential Mars Farmers

The third stage of the experiment will be focused n food safety, including ensuring that these heavy elements don’t poison future colonists. This will be a crowd funded project