February 26, 2024
Astronomers have discovered what may be the brightest object in the universe, a quasar with a black hole at its heart growing so fast that it swallows the equivalent of a sun a day.
https://www.nbcnews.com/science/space/black-hole-devouring-sun-day-may-universes-brightest-object-rcna139507
Have a nice day!
February 25, 2024
Astronomers have found three previously unknown moons in our solar system — two additional moons circling Neptune and one around Uranus.
https://www.nbcnews.com/science/space/astronomers-spot-new-tiny-moons-neptune-uranus-rcna140285
One takes nearly 27 years to circle Neptune.
The “new” moon of Uranus is only 8 kilometers (5 miles) in diameter.
And there are likely many more yet to be discovered.
February 23, 2024
A robotic spacecraft made history Thursday becoming the first privately built craft to touch down on the lunar surface, as well as the first American vehicle to accomplish the feat in more than 50 years.
https://www.nbcnews.com/science/space/moon-landing-odysseus-touches-down-lunar-surface-n1308924
Congratulations! 🎉
You now have one week before shutting down permanently.
Jeez. Really? That’s a very expensive week at $118,000,000. Glad the taxpayers approve (?)
February 21, 2024
It’s been well-known for some time now that the building blocks of life called amino acids can be found on asteroids strewn throughout the solar system.
It’s also thought that water on Earth is largely (or entirely) the result of comets and asteroids bombarding it (it remains debatable to what degree Earth already had water, but since when it formed the Earth was first molten lava and then dry as a bone, I think it far more likely that water came here from elsewhere, and science tends to agree).
I’ve already blogged about the origins of Bringer of Light, when I (finally) finished the first draft back in early September. In a sense, I’ve been constantly blogging the science behind the story.
But I haven’t discussed the characters at all. And despite what some old-fashioned writers may think (just finished a particularly badly-written snarky “why your books don’t sell” piece of trash that claimed science fiction shouldn’t have any emotions in it…say what? sorry not sorry), if the characters of a story aren’t interesting, there isn’t much point in reading a story.
So for the next couple of weeks, I’ll write a bit about the characters — the crew of the Artemis, the crew of the Sagittarius, the UN flunkies (sorry, career politicos) on Mars and Luna and so forth. There are lots of characters, and their interaction is complicated. Or is it?
I would get into my scifi influences at this point, but long blogs are slogs. So I’ll come back to that tomorrow!
Coffee time. Also to finish up at least one unrelated project and also the hardcover manuscript (which needs to be a different paper size than the paperback for some reason).
February 12, 2024
Mimas, the smallest and innermost of Saturn‘s major moons, is believed to generate the right amount of heat to support a subsurface ocean of liquid water
https://www.space.com/saturn-moon-mimas-stealth-ocean-world
Unfortunately the “stealth ocean” is only a few million years old, not nearly enough to harbor life.
But it demonstrates the fact that water may in fact be common in space, opening the possibility of finding life on celestial bodies with older (much older) water sources.
(FYI: Mimas orbits Saturn once every 22 hours, and is affected by tidal forces from Saturn that appear to have melted part of its icy surface.)
February 1, 2024
OK, so my post about a big ole spider got the most likes of any post in ten years of blogging about science.
I have so not got the zeitgeist of the 2024 blogosphere lol – anyway, thanks, all, for the “likes”! Although one person used AI to write a very meaningless comment about arachnophobia. What’s the point, man?
By the way, back to science and space stuff. I forgot to post about the Europa Clipper project back in October.
So here you go. (It’s too late to add a message, but the project obviously is going to take some time arriving there, and you can supposedly hear US Poet Laureate Ada Limón read her poem online, although I’ve had trouble with the audio lately:
“Arching under the night sky inky
with black expansiveness, we point
to the planets we know, we
pin quick wishes on stars. From earth,
we read the sky as if it is an unerring book
of the universe, expert and evident.
Still, there are mysteries below our sky:
the whale song, the songbird singing
its call in the bough of a wind-shaken tree.
We are creatures of constant awe,
curious at beauty, at leaf and blossom,
at grief and pleasure, sun and shadow.
And it is not darkness that unites us,
not the cold distance of space, but
the offering of water, each drop of rain,
each rivulet, each pulse, each vein.
O second moon, we, too, are made
of water, of vast and beckoning seas.
We, too, are made of wonders, of great
and ordinary loves, of small invisible worlds,
of a need to call out through the dark.”
January 23, 2024
The so-called Big Ring has a diameter of about 1.3bn light years, making it among the largest structures ever observed. At more than 9bn light years from Earth, it is too faint to see directly, but its diameter on the night sky would be equivalent to 15 full moons.
https://www.theguardian.com/science/2024/jan/11/newly-discovered-cosmic-megastructure-challenges-theories-of-the-universe
This is important because it contradicts the so-called “cosmological principle” that everything in the universe is basically evenly distributed.
Just thinking about it, though, it makes little sense to assume that galaxies are all evenly spaced. Assuming the Big Bang was a single point should not imply even spacing of anything.
FWIW the “Big Ring” is evidently more a corkscrew shape, directly aimed at us. Evidence of “cosmic strings”? Maybe.
This is not as interesting as technology that will allow us to build hotels and colonies at LaGrange points or communities on Mars, but it’s still interesting. Sorta. Maybe?
January 20, 2024
A Japanese robot has successfully touched down on the Moon but problems with its solar power system mean the mission may live for just a few hours.
The Smart Lander for Investigating Moon (Slim) put itself gently on the lunar surface near an equatorial crater.
https://www.bbc.com/news/science-environment-68035314
Or SLIM, if you want to actually write acronyms properly (snark).
Also, it’s JAXA, not Jaxa. And NASA and ESA, not Nasa and Esa. But I digress.
Anyways, kudos but too bad yet another space mission failed. At this point I’m wondering how on Earth NASA managed to land people on the Moon so successfully in the 1960s and 1970s without killing half of them in the process. We can barely manage to get a tiny robot rover the size of a marble to land (see the link above for the picture of the “hopper” and “shape shifting” ball…curious about the “shape shifting” bit…)
January 13, 2024
“We continue receiving valuable data,” the company said in a statement, “and providing spaceflight operations for components and software relating to our next lunar lander mission, Griffin.”
https://www.nbcnews.com/science/space/private-mission-moon-wont-land-lunar-surface-malfunction-rcna133082
Well, yeah, great. But the Peregrine lander still is a failure. Propulsion leak. Solar panels that didn’t open in time.
And NASA is counting on these privately operated products to get people back to the Moon? And they’ve delayed the Artemis again by another year?
When I was in school, we were all talking about people on Mars, living in permanent communities in the 2020s. And we can’t even get a tiny Moon lander to work right.
Sigh. And after BBC posted “Vulcan rocket” I so had my hopes up. (“The Vulcan rocket,” not “Vulcan rocket,” Spock 🖖)
December 20, 2023
Aiming the laser at the spacecraft so the transceiver knows where to point back is the most difficult part, Wright said. And because Earth and the spacecraft are both moving, the lasers must point to where the destination will be in a few minutes.
https://www.washingtonpost.com/technology/2023/12/19/nasa-laser-video-streaming-space-mars-cat/
“The beam’s so narrow, it can’t just point to Earth. It needs to know exactly where on Earth,” Wright said. “Trying to hit a dime from a mile away while you’re moving at 17,000 miles an hour — that’s the challenge.”
So NASA has been working on this idea for a while now. The invisible laser beam that carried this video file came from the Psyche probe, on its way to the asteroid belt between Mars and Jupiter.
Psyche is 19 million miles away right now. The laser beam took 108 seconds to reach Earth.
Mars and Earth are on average 140 million miles apart and can be up to 250 million miles apart depending on the timing of their respective orbits.
I don’t think lasers are the answer here. A good start, maybe, but you can do the math. Having to wait between 10 to 20 minutes, or more, for a one-way transmission (double that for an exchange of messages) would not be ideal for a human settlement in an emergency.
Star Trek style instant interstellar communication is still just scifi. Unless there’s still something out there we haven’t found yet, even quantum communication will take time…
But at least NASA has finally realized that non-science people like cat videos.
🐈 🐈⬛
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