October 12, 2022
“For the first time ever, humanity has changed the orbit of a planetary body,” said NASA planetary science division director Lori Glaze.
https://www.sciencenews.org/article/dart-mission-deflected-asteroid-for-planetary-defense
A change of 32 minutes in orbit — but only 4% of the total orbital period. To deflect an asteroid away from Earth, it’d better be done several years in advance. 🌏
Still, it can be done. An amazing first.
September 19, 2022
Just passed 200 followers on WordPress. Thank you, everyone!
I know I should be posting a whole lot more often than I have. There are LOADS of new science articles and events happening recently, so I’ll see if I can get caught up over the next couple of weeks.
Plus a new chapter of Bringer of Light by the end of the week! I promise!
(And it would be VERY helpful if WordPress didn’t “refresh” while I was adding tags and categories to posts, and then hiding those tags and categories afterward so that I couldn’t update them…Sigh…what was wrong with the older version that worked just fine?)
September 18, 2022
I should be posting another chapter from Bringer of Light, but I don’t feel like writing that right now, what with a humongoid typhoon slowing churning its way here.
So here’s an article about what Chinese scientists found in Moon dirt.
Also H3. Yay. Let’s make fusion reactors and walk on the Moon together…
August 23, 2022
“We’ve never seen Jupiter like this. It’s all quite incredible,” said planetary astronomer Imke de Pater, of the University of California, Berkeley, who helped lead the observations.
“We hadn’t really expected it to be this good, to be honest,” she added in a statement.
https://www.pbs.org/newshour/science/james-webb-space-telescope-shows-jupiters-auroras-tiny-moons
The above is supposed to be in “quote” format, but WP really messed up this feature when they switched to so-called “block” mode (which I can’t stand).
Anyway, the image is fairly spectacular, from the new James Webb Space Telescope which is positioned 1 million miles away from Earth (i.e., in the second LaGrange point, or L2).
August 18, 2022
First of all, stop calling it “the golden asteroid.” That’s confusing people (the headline of the article linked below even uses the phrase “gold mine.” Come on, lazy journalists.)
If 16 Psyche is worth mining, when could such operations proceed? Citigroup thinks that space mining, including from the moon and asteroids, will be a $100 billion-per-year business by 2040. Launch costs will continue to decrease and experience in operating in space will continue to expand until such a business makes economic sense.
https://thehill.com/opinion/technology/3597381-nasa-might-cancel-mission-to-massive-gold-mine-asteroid-heres-why-it-shouldnt/
So is asteroid worth it?
Sure.
Is it horribly expensive right now?
Sure.
So why do it?
Well, how heavy do you think the materials to make buildings and ships in outer space are?
If we’re serious about putting people on the Moon and Mars, then it makes much more sense to set up robotic mining factories and assemble everything in space.
All this needs is a little incentive…like a new space race…
August 12, 2022
Our search for alien life is getting serious. With better telescopes and a growing scientific consensus that we’re probably not alone in the universe, we’re beginning to look farther and wider across the vastness of space for evidence of extraterrestrials.
But it’s possible we’re looking for too few signs in too few places. Having evolved on Earth, surrounded by Earth life, we assume alien life would look and behave like terrestrial life.
https://www.thedailybeast.com/alien-hunters-need-to-start-rethinking-the-definition-of-life?
I agree that we are biased, simply based on the basics of what we understand as (carbon-based) life (i.e., ourselves).
And I agree — in principle — that scientists need to keep an open mind when looking for other life forms on exoplanets.
However, they also need to retain a sense of skepticism.
Continue Reading
July 26, 2022
These aren’t the drones that deliver your online order. Loaded with cameras, sensors, and explosives, their mission is to drive themselves to a target with an algorithm in the driver’s seat. They destroy themselves along with the target, leaving behind just a pile of electronic detritus.
https://m.dw.com/en/killer-robots-will-they-be-banned/a-62587436
Oh, joy. I can’t wait to see what happens when we program 3D printers to churn them out.
Or just simply make them self-replicating. What could possibly go wrong?
July 12, 2022
…but it is worth USD $10 billion…
PS. Let’s look for the aliens, already…
https://apnews.com/article/james-webb-telescope-first-photos-32c7cad1f6b277f871990d029bedba72
July 1, 2022
…there has been a serious erosion of the tradition of skeptical inquiry, of vigorous challenging of government leaders, of public exposure of what the government is actually doing, rather than mere pomp and rhetoric. And it is in this area—skeptical scrutiny, public exposure—where the largest strides, in my opinion, are needed.
https://quillette.com/2022/07/01/science-and-civil-liberties-the-lost-lecture-of-carl-sagan/
Thank you, Stephen Pinker and Harvey Silverglate, for transcribing this. And Ann Druyan, for permitting it.
June 30, 2022
Today is “International Asteroid Day”!
Who knew?
Asteroids hold large amounts of valuable minerals and metals. That is what International Asteroid Day is raising awareness about on 30 June.
https://www.bbc.com/news/av/science-environment-61985813
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