Maybe if we want to live forever and still have children then this is the only way.
Can We Terraform Mars to Make It Earth-Like? – Space – 30-Jul-2018
Mars is a hopeful “Planet B” if Earth fails.
Terraforming is the process of changing the conditions on a planet.
It would make Mars habitable for Earth life without life-support systems.
New paper says terraforming Mars not possible with existing technologies.
Would need to raise temperatures and thicken the atmosphere.
not enough CO2 on Mars to make the planet Earth-like.
100 people needed to start trip to another star – Phys – 15-Jun-2018
Would take 630 years to reach Proxima Centauri b.
Need a minimum of 98 crew members would be needed to sustain a multi-generational voyage.
Factors include fertility rates, birth rates, and reproduction window.
Allows for accidents and catastrophic events, and prevents inbreeding.
Will we ever colonise an asteroid? – BBC News – 13-Jun-2018
Asteroids come in three types: stony, carbonaceous, metallic.
Carbonaceous asteroids are often 10% water.
Size can range from a small house to hundreds of metres.
No atmosphere to protect settlers from cosmic rays.
Could bury settlements to shield from radiation.
Long-term exposure to micro-gravity is detrimental to the body.
NASA’s plan for an aerial colony above Venus – NBC News – 5-Jun-2018
HAVOC is NASA’s High-Altitude Venus Operational Concept.
Would enable long-term atmospheric habitation and colonization of Venus.
Venus is the closest planet to Earth – with nearly identical size and mass.
Surface temperatures above 400 C and nearly 100x atmospheric pressure.
But 30 miles up, above the acidic clouds, conditions are more tolerable.
Heliem filled airship could unfurl to 3x size of a Boeing 747.
Elon Musk still thinks a Mars colony will save us from a future dark age – The Verge – 11-Mar-2018
Elon Musk talks about all the ways humanity may be doomed in the future.
Thinks there is such a strong need to colonize Mars and maybe the Moon.
A Mars colony would stay away from a nuclear war on Earth.
“AI is far more dangerous than nukes.”
Humans Could Someday Colonize Jupiter and Venus – Interesting Engineering – 21-Jan-2018
Mars One is hoping to establish a permanent human settlement on Mars.
CEO Bas Lansdorp is already looking to other planets for potential colonization.
At 30 miles up, the climate on Venus resembles that of the Mediterranian.
Jupiter’s moon Europa has a manageable atmosphere and thick icy surface.
A Timeline for Humanity’s Colonization of Space – Futurism – 30-Oct-2017
Late 2017: Heavy Falcon Launch
2018: Preparing for Space Tourism
2019: Space Tourism and Observation
2020-2025: “Earth Reliant” and Beyond
2022: Making Mars Habitable
2024: Manned Missions on the BFR
2025-2030: A Year in Space
2030s: NASA Sends Humans to Mars
Discovery of 50km cave raises hopes for human colonisation of moon – The Guardian -19-Oct-2017
Japan’s space agency said it had discovered an enormous cave beneath the lunar surface that could be turned into an exploration base for astronauts.
Using a radar sounder system the orbiter initially found an opening 50 metres wide and 50 metres deep, prompting speculation that there could be a larger hollow.
The chasm, 50km (31 miles) long and 100 metres wide, appears to be structurally sound and its rocks may contain ice or water deposits that could be turned into fuel.
The discovery will boost plans by several countries to send astronauts to the moon almost half a century after the Apollo 11 mission.
Elon Musk Reveals More About Plan to Colonize Mars – Fortune – 15-Oct-2017
Musk clarified that, though he has shared images of vast Martian cities in his presentations on Mars colonization SpaceX isn’t focused on building those cities itself.
They are aiming to build the equivalent of the transcontinental railway.
Musk also reiterated previous claims that SpaceX is designing the new Mars rocket – still code-named BFR which stands to be as safe and reliable as today’s commercial airliners.
Its first scheduled flight will be in 2022.
Mars crews could be at risk from onboard microbes – The Guardian – 4-Oct-2017
Mars500 project simulated a 17 month mission to Mars in a 180sq metre capsule.
Parts of the capsule were rife with microbial life.
Microbial diversity fell over time – could become a problem if only pathogens left.
Space environment could leave humans more susceptible to infection.
Asteroid mining could support space colonies – CBC – 22-Sep-2017
A team of researchers are planning to send robotic spacecraft into outer space, land near asteroids hurtling through the abyss and mine them for water, metals and other elements that will make colonizing space that much easier.
City could be built on on Mars by 2062 – Independent – 22-Jun-17
Elon Musk says a city of a million people could be established on Mars within decades.
Humans would face a “doomsday event” unless we become a “truly multi-planetary species”.
Envisaged creating a Mars Colonial Fleet of 1,000 craft.
If we could warm Mars up, we would once again have a thick atmosphere and liquid oceans.
“It has got to be really fun and exciting… you can do zero-gravity games”
COMMENT: unless everyone is dedicated we’ll need a new drug to address rapid muscle loss in low gravity
Longevity will lead to Overpopulation – IEET – 4-Jul-2015
Article by Live Forever Club’s Adrian Cull considers 2 main strategies:
1. prevent the increase in population or
2. find somewhere for the ever growing mass of people to live.
For the 2nd option it was surprising to find that if the world spent 2% of GDP (similar to current defence spending) on space launches we could remove the 75 million people currently being born every year.
The human universe: Could we colonise the stars? – New Scientist (subscription) – 4-May-15
Three main hurdles: 1. nowhere in our solar system offers a suitable environment, 2. will need significant propulsion power, and 3. interstellar dust likely to damage crafts travelling to other suns.