Some details on SpaceX’s Mars plan and the issues they are working on.
Dr. Phil Metzger posted an epic 48 tweet thread on Twitter explaining why megaconstellations (e.g. SpaceX’s Starlink) are inevitable, as is their eventual demise as better tech comes online.
Looking at the evolution of life, from single celled organisms to bipedal apes rapidly outgrowing the planet, as the exponential growth of information is a novel (to me at least) approach and provides an interesting perspective.
“I would bet that if we find alien civilizations somewhere else in the galaxy, or in a galaxy far, far away, we will discover that they ALL developed megaconstellations right before they got industry off their planets & divorced their information systems from their biosphere.”
This is wild stuff and well worth a full read.
Ostensibly about the SpaceX Raptor engine, it’s really so much more. If you’ve ever had a hankerin’ to learn more about rocket engine design, Everyday Astronaut‘s latest video is a great place to start.
In the wee hours of tomorrow morning (3/2/19), SpaceX will be launching its Crew Dragon for the first time. While it will not be carrying people, this is a big deal. Continue reading “SpaceX Demo-1”
I’m not sure there is such a thing as an “ordinary spacecraft”, but there certainly has never been a spacecraft like SpaceX’s BFR. The sheer audacity of someone trying this is balanced by the earnestness of the effort, and the whole process is fascinating to watch unfold. This article investigates some of the challenges SpaceX is facing.
“To be able to launch, refuel in orbit, endure months of flying through space, land on Mars, leave that planet, and safely return to Earth — then do all that over again — the BFR can’t be an ordinary spacecraft.”
SpaceX plans to fly a tourist around the moon in a new launch system called Big Falcon Rocket, or BFR: a giant spaceship and rocket designed for Mars.
Admit it: you’ve always been curious.
It isn't easy to go to the bathroom in space. Some astronauts say it's their least favorite part of working in zero gravity. A variety of makeshift solutions have been sent into space, including pee bags, roll on "cuffs," diapers, strappy toilet seats, and $19 million commodes.
“The article’s basic mistake is in thinking Mars is a closed system. But no planet is a closed system.”
“This NASA article says terraforming Mars isn’t possible “using present day technology.” This is true in the most pedestrian sense. Nobody has a “Mars terraforming machine” sitting in their garage, so the technology doesn’t exist in the present day. BUT /1 https://t.co/Si3GQy627p”
Humans love the idea of a rebel. But only the idea. Take action too far outside the box of current experience and you begin to hear the Greek Chorus of naysayers heckling you, gleefully glomming onto anything that might pull you back within accepted norms.
Such has been the case recently regarding a paper in the journal Nature Astronomy, which reported that there does not appear to be enough CO2 on Mars to allow for terraforming. I can’t count the number of articles that have floated through my various feeds starting with the mocking phrase “Sorry Elon…” Google it yourself and see what I mean.