Brevity is for the weak
“Our test facilities can’t reach the combination of heat flux, pressure, shear stresses, etc., that an actual reentering spacecraft does. We’re always having to wait for the flight test to get the final certification that our system is good to go.”—Jeremy VanderKam, deputy manager for Orion’s heat shield, speaking in 2022 On Wednesday, NASA will attempt to send four astronauts around the moon on a…
If you've enjoyed my writing about space over the years, I invite you to subscribe to my new substack newsletter, titled ' Mars for the Rest of Us ', where I've been posting weekly essays on topics around Mars exploration. Here are two recent free posts: Musk on Mars : a timeline of Elon Musk's shifting public commitments to Mars settlement. A Primer on Long-Duration Life Support : an overview of…
This post is the second in a series. Read part one here . “From a mathematics and trajectory standpoint and with a certain kind of technology, there’s not too many different ways to go to Mars. It’s been pretty well figured out. You can adjust the decimal places here and there, but basically if you're talking about chemical rockets, there's a certain way you're going to go to Mars.” - John Aaron…
Introduction A Note on Apollo I. The Rocket II. The Capsule III. The Orbit IV. Gateway V. The Lander VI. Refueling VII. Conclusion Notes A little over 51 years ago, a rocket lifted off from Cape Canaveral carrying three astronauts and a space car. After a three day journey to the moon, two of the astronauts climbed into a spindly lander and made the short trip down to the surface, where for…
For a successful technology, reality must take precedence over public relations, for nature cannot be fooled. — Richard Feynman Entrance to underground cavern on Pavonis Mons. HiRISE, 2011 The goal of this essay is to persuade you that we shouldn’t send human beings to Mars, at least not anytime soon. Landing on Mars with existing technology would be a destructive, wasteful stunt whose only legacy…
Part of what brought me to Taiwan was bureaucratic thrill seeking. Few other countries had gone from “just hop on a plane” to North Korean levels of inaccessibility as fast as Taiwan, and like a cat that paws at a door just because it's closed, I wanted in. The country was off-limits to foreign visitors, but there was a tiny gap left in the regulations, and with the right references, statements of…
In August 2020, the New York Times asked me to write an op-ed for a special feature on authoritarianism and democracy. They declined to publish my submission, which I am sharing here instead. When the George Floyd protests began to spread nationally in the summer of 2020, I noticed many people on social media asking Hong Kongers for advice on protest tactics–which apps to use, what equipment to…
With less than two months left before the election, this is an explainer for the politically panicked. You're anxious, you feel the need to do something, and you have a little money to spare. Who should you give it to? My goal here is not to sell you on specific candidates (though I'd be the worst fundraiser in the country if I didn't make a pitch!), but to offer you a strategy for navigating a…
Last week I spoke with Sara Huddleston, candidate for Iowa state house in district 11 (Storm Lake). A longtime community organizer and three-term city council member, she was the first Latina elected to a city council in the state of Iowa, and would be the first Latina to serve in the state house. She was recently named to Joe Biden's Iowa Latino Steering Committee. The last time Sara ran, she did…
Last week I spoke by video chat with Alyse Galvin, who is running for Congress in Alaska's sole, enormous Congressional district in a rematch against Don Young, the longest-serving member of Congress. Young, who just turned 87, is a notorious figure in state and national politics . His initial response to the pandemic was to dismiss it as a "beer virus" and continue to hold in-person fundraisers…