April 19, 2021
“We together flew on Mars. We together have our Wright brothers moment.”
https://www.washingtonpost.com/technology/2021/04/19/nasa-ingenuity-helicopter-mars/
Yeah, yeah, I know. Technically, a German immigrant in Connecticut flew a plane before Orville and Wilbur.
But PR counts. Kudos, NASA!
April 12, 2021
Using blobs of skin cells from frog embryos, scientists have grown creatures unlike anything else on Earth, a new study reports. These microscopic “living machines” can swim, sweep up debris and heal themselves after a gash.
https://www.sciencenews.org/article/frog-skin-cells-self-made-living-machines-xenobots/amp?__twitter_impression=true
The possibilities are endless…
February 12, 2021
February 4, 2021
A crewed mission to Mars may be more practical thanks to a new rocket concept developed by Fatima Ebrahimi, a physicist at the US Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL), that uses magnetic fields to generate thrust.
https://newatlas.com/space/magnetic-reconnection-rocket-thruster-concept-spaceflight-mars/
Looks good so far…
…although it’s just a computer simulation right now and the magnetic thruster model hasn’t even been built yet.
Ah, well, just repurpose an existing ion thruster, right?
Hmm. I’m not a rocket scientist, but.. 🚀
January 27, 2021
NASA ended the US’s interest in spaceplanes when it scrapped the shuttle fleet a decade ago.
But other space agencies and private companies in other countries are very much in the game. ESA, India, even the UK.
And, of course…
Whichever future the spaceplane does have, it will involve China. “We know very little about the launch [of China’s experimental spaceplane],” says Deville. “But it shows that China is serious about developing its spaceplane concepts.”
https://www.bbc.com/future/article/20210121-spaceplanes-the-return-of-the-reuseable-spacecraft
January 23, 2021
This past Thursday I got a metal spike screwed into my jaw.
And it hurt.
But not as badly as I feared. To be honest, it’s all my fault. Well, all my 20-year-old-self’s fault. Too much soda and not enough brushing and flossing in college.
Damn you, Dr. Pepper!
Continue Reading
November 8, 2020
“By studying synthetic microswimmers, we would like to understand biological microswimmers,” Samia Ouhajji, one of the study’s authors, told CNN. “This understanding could aid in developing new drug delivery vehicles; for example, microrobots that swim autonomously and deliver drugs at the desired location in the human body.”
https://edition.cnn.com/2020/11/08/us/star-trek-3d-microscopic-spaceship-scn-trnd/index.html
Another once-science fiction concept turned reality…
…until the next fantastic voyage(r)?
November 6, 2020
According to NASA estimates there are at least 100 billion stars in the Milky Way, of which about 4 billion are sunlike. If only 7 percent of those stars have habitable planets — a seriously conservative estimate — there could be as many as 300 million potentially habitable Earths out there in the whole Milky Way alone.
https://www.nytimes.com/2020/11/05/science/astronomy-exoplanets-kepler.html
It takes a while to collect, sort through, analyze, write up, endure peer review, and publish data from scientific projects.
That’s why finally we’re seeing this, 11 years after Kepler was launched to scour the galaxy for exoplanets.
Now the real challenge will be figuring out how to get there…
It’s time to move on the next factor in the Drake equation for extraterrestrial civilizations: the fraction of these worlds on which life emerges. The search for even a single slime mold on some alien rock would revolutionize biology, and it is a worthy agenda for the next half-century as humans continue the climb out of ourselves and into the universe in the endless quest to end our cosmic loneliness.
September 1, 2020
I get the attraction of people like Steve Jobs and Elon Musk. They have big ideas. They’re enthusiastic, ecstatic, even. They’re great at simplifying difficult concepts and promoting tech to the lay person.
But they’re not creators. They’re “visionaries.”
I.e., salespersons.
Is that a bad thing? Of course not. I was in computer sales once. It was hard. Only the charismatic are good at it. But I didn’t have the knowledge and ability to make the products I was selling, let alone the power to innovate.
Sticking a chip in a person’s brain and sending thousands to the Moon or Mars sound cool. Possible, even.
But science isn’t sales. Someone might die.
Small difference.
We need visionaries, but scientists are more important. Maybe if they talked to each other…
August 11, 2020
Astronauts on a trip to Mars would be exposed to very high levels of radiation which can cause serious long-term health problems such as cancer and sterility. Radiation shielding can help, but it is extremely heavy, and the longer the mission, the more shielding is needed. A better way to reduce radiation exposure is to simply get where you are going quicker.
Hmm. So putting them in a ship with a giant nuclear fission reactor is safer?
I think somebody may want to come up with a backup plan…
https://www.space.com/nuclear-powered-rockets-to-explore-solar-system.html
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