The tweet archive.

“@EcoHeliGuy @Erdayastronaut Yeah. A lot of work is needed for propellant production on Mars.”

“@Erdayastronaut Building 100 Starships/year gets to 1000 in 10 years or 100 megatons/year or maybe around 100k people per Earth-Mars orbital sync”

“@SPEXcast @SciGuySpace What’s amazing is how non-linear the effect of gravity is. Starship can travel by itself from surface of Mars to surface of Earth, but requires massive booster on Earth with orbital refilling to get to Mars, which is ~38% of Earth gravity.”

“@SPEXcast @SciGuySpace Densification isn’t needed to return the ship & limited cargo from Mars, but it’s an option for increasing cargo return capability if needed”

“@neiltyson If we create a city on Mars, Earth-Mars travel will be a powerful forcing function for inventing something like warp drive”

“Tesla Cybertruck (pressurized edition) will be official truck of Mars”

“@teslaownersSV @flcnhvy No, in the beginning, assuming you even make it there alive, Mars will be far more dangerous & difficult than Earth & take decades of hard labor to make self-sufficient. That’s the sales pitch. Want to go?”

“@teslaownersSV @flcnhvy So it will take about 20 years to transfer a million tons to Mars Base Alpha, which is hopefully enough to make it sustainable”

“@teslaownersSV @flcnhvy A thousand ships will be needed to create a sustainable Mars city”

“@flcnhvy The economics have to be something like that to build a self-sustaining city on Mars”

“@HarryStoltz1 In solving for a good Mars climate, we will learn a great deal about how to do so on Earth. It is the inverse problem.”

“@The_ShadowZone @DJSnM For sure more than one pass coming back to Earth. To Mars could maybe work single pass, but two passes probably wise.”

“@Robotbeat @justpaulinelol @Teslarati Sure. Have to do it on Mars from beginning. Will ultimately do that on Earth too, so rocket flights will be zero net carbon long-term.”

“One day Starship will land on the rusty sands of Mars https://t.co/EfENYVdOzM”

“@justpaulinelol Not risky imo & can be adjusted/improved real-time. Essentially need to figure out most effective way to convert mass to energy, as Mars is slightly too far from this solar system’s fusion reactor (the sun).”

“Nuke Mars refers to a continuous stream of very low fallout nuclear fusion explosions above the atmosphere to create artificial suns. Much like our sun, this would not cause Mars to become radioactive.”

“@ThePhoenixFlare Trickier than it may seem on Mars, as atmospheric density is 1% that of Earth & gravity is 38%, but doable for localized warming”

“Might make sense to have thousands of solar reflector satellites 🛰 to warm Mars vs artificial suns (tbd)”

“Nuking Mars one T-shirt at a time https://t.co/Kiah2HbxFi https://shop.spacex.com/featured-products/nuke-mars-t-shirt.html”

“Nuke Mars!”

“@ajtourville @marstronauts @Erdayastronaut Approx min payload to Mars to nearest order of magnitude, so at $100k/ton, cost would be $100B”

“Great progress by Starship Cape team. Started several months behind, but catching up fast. This will be a super fun race to orbit, moon & Mars!”

“@annerajb @highlyaaronic Orbital refilling is critical for high payload to moon or Mars. Initially just Starship to Starship, later dedicated tankers.”

“@CormacSheehan1 Occupy Mars”

“@Globe_Mars @CNBC We must safeguard the future of life by transitioning to sustainable energy on Earth & becoming multiplanetary via Mars. It’s not clear how much time we have to do these things, but sooner is definitely better.”

“@0411ashwin Colonizing Mars one mug at a time!”

“@_TomCross_ Heat will breathe life into Mars”

“On Mars, I like to drink my coffee in this mug https://t.co/DN7aIyhhQ3 https://shop.spacex.com/occupy-mars-heat-sensitive-terraforming-mug.html”

“@Perky3327 @Erdayastronaut Mars belongs to the Martians”

“@Erdayastronaut @rmarcilhoo @kimitalvitie @SpaceXNow @ChrisG_NSF @NASASpaceflight Exactly. We’re on the wrong planet for SSTO. No problem on Mars or any of the moons.”

“@SPEXcast @Erdayastronaut @SpaceX Propellant stays same, but almost everything else improves. Fundamental goal is minimize cost per ton to surface of Mars.”

“Starships on Mars https://t.co/AyKEO6ATiZ”

“@WorldAndScience It’s possible to make a self-sustaining city on Mars by 2050, if we start in 5 years & take 10 orbital synchronizations”

“Make the Mars Technocracy real”

“@DJSnM @DanAloni @Kell31213876 @Vadim15258417 @Erdayastronaut @sasor098 @AdamHugo @WayCharMar @fan_of_racing @bkent136 @macodiseas @katlinegrey Advanced, reusable rockets are all we need to become a multiplanet civilization. Once we have a city on Mars, interplanetary travel will create a forcing function for vast improvements in spaceflight.”

“@benoitdenayer @navincho @katlinegrey Essentially, yes. Great engineering talent, but should focus on reusable rockets for purpose of a permanent human base on the moon and self-sustaining city on Mars.”

“@AstrumMining @SPEXcast @McMurchie @Robotbeat @John_Gardi @SpaceX Moon first, Mars as soon as the planets align”

“@SPEXcast @Robotbeat @John_Gardi @SpaceX Very dependent on volume, but I’m confident moving to Mars (return ticket is free) will one day cost less than $500k & maybe even below $100k. Low enough that most people in advanced economies could sell their home on Earth & move to Mars if they want.”

“@Erdayastronaut @keego73 Absolutely. You’ve touched on a very important point. The ship must be easy to repair on the moon and Mars.”

“@keego73 It’s designed for 100 people on a Mars journey”

“@physicsJ Roughly 4 to 20 minutes for light to travel from Earth to Mars”

“@WevolverApp @SpaceX Dragon 2 was originally designed to land with thrusters, but it’s not the right architecture for heavy transport to the moon or Mars, so we decided not to qualify it for thruster landings”

“@Erdayastronaut @ludan27 @JeromeJaccard @Robotbeat @alan1bernard Seriously! We are just on the wrong planet for SSTO. Mars, no problem.”

“@ludan27 @Erdayastronaut @JeromeJaccard @Robotbeat @alan1bernard Yes, but single stage to orbit with no payload is pointless. Add Super Heavy rocket booster & orbital payload is gigantic. Only need booster on Earth, due to deep gravity well & thick atmosphere. Starship alone on moons & Mars.”

“@NASA @NASAInSight Congratulations! What an amazing track record of success with Mars!”

“@WorldAndScience Earth should be called Water. Our surface is 71% water. Mars land area is roughly equal to Earth, as it’s all land. Even when warmed up & water ice turns liquid, Mars will be about 2/3 land.”

“@owillis About half my money is intended to help problems on Earth & half to help establish a self-sustaining city on Mars to ensure continuation of life (of all species) in case Earth gets hit by a meteor like the dinosaurs or WW3 happens & we destroy ourselves”

“Mars Base Alpha https://t.co/O1llQp8rFY”

“@xJawz @RNaegels @joerogan @peterthiel @reidhoffman Not me, I’m gonna die right here in the USA. Or Mars. Just not on impact.”

“@DiscoverMag There’s a massive amount of CO2 on Mars adsorbed into soil that’d be released upon heating. With enough energy via artificial or natural (sun) fusion, you can terraform almost any large, rocky body.”