I don't know how much longer I'll be able to offer science and space news, as the crisis of survival of civilization gets crazier and more dangerous, daily. I promise some cool space news, below!
But first... Donald Trump's possibly worst treason, hidden under so much else! I'd talk about how the troops sent to Saudi and the Iranian ship hit by "missiles" all point to a return to an Iran-US dog-wag war. (Remind all your friends of the terms "Tonkin Incident" and 'Gleiwitz' and Reichstag fire. BUT THERE'S NO TIME! I'd get you all to insist the nation's mayors demand huge deposits before any Trump rally gets permits, since they stiff the taxpayers. BUT THERE'S NO TIME! Because something far more important is up!
Yes, a bigger danger. Trump appears to be about to pull the U.S. out of the Open Skies Treaty, by far the most-important arms control compact and the one Dwight Eisenhower prayed for (for all our sakes) till the day he died. Like with the IRBM treaty Trump abrogated, the one wanting this to end is the puppet master Vladimir Putin. Dig it, the KGB (it's renamed version) can already track goings on in the US. The treaty favors us, vastly! And that's why Putin has ordered his puppet to end it. (The IRBM treaty also favored us, hence Trump went 'siegheil comrade' and pulled out.) It is time for eminent officers to tactically and carefully and slowly but emphatically resign-and-speak. This relatively unmentioned move - hidden by other headlines - may be the most dangerous Trumpian Treason of all.
== The Universe goes on, magnificently... though maybe soon without us... ==
A second confirmed visitor from interstellar space appears this time to be a comet about 10 kilometers across as it appears to have a visible tail. Unlike Ou'muamua, this one is not only about six times brighter but is also making its way into the Solar System at about 30 kilometers per second, giving us a much longer period of time to study it.
Didn't expect this for a couple of years. Water vapor has been detected in the atmosphere of a super-Earth in a red dwarf's goldilocks zone. We are amazing.
And we should be capable of wresting back the revolution that led to all these
wonders.
Hubble catches a dozen of Saturn’s moons in orbital dance. Wow.
Hayabusa! The Japanese spacecraft at asteroid Ryugo has done it again.
Performed difficult sample collecting maneuvers flawlessly. They'd be great
partners for NASA to head out and do valuable, exciting new things, instead of
joining a crowded field of Apollo wannabes aiming to plant dusty footprints
(with zero prospect for benefits) that our ancestors achieved half a century
ago. Boldly go. Ikimasho!
Speaking of rocks. Japanese
scientists have calculated that the dinosaur-killer asteroid would have ejected
billions of
tons of life-bearing meteorites into space. Further, a A previous study found that more Earth ejecta must end up in interstellar space than all the other planets combined. As much ejecta would have ended
up on Europa as on the Moon: around 100 million individual Earth rocks in some
scenarios. That’s because the huge gravitational field around Jupiter acts as a
sink for rocks, which then get swept up by the Jovian moons as they orbit. If
life evolved at just 25 different sites in the galaxy 10 billion years ago, the
combined ejecta from these places would now fill the Milky Way.
== Steps toward Space Exploration ==
The Moon might be only 50 million years (an eyeblink) younger than Earth itself. The massive collision that tossed a lot of Earth’s crust into orbit, to settle into the Moon, appears to have occurred very early, not the 150 million years previously thought. The newborn Moon was covered in a magma ocean, which formed different types of rocks as it cooled. 'These rocks recorded information about the formation of the Moon, and can still be found today on the lunar surface,' says Dr Maxwell Thiemens, former University of Cologne researcher and lead author of the study. (Terrific work, Max!) Though it doesn’t change the fact that there are no “ores” on that barren dustpile, that is (for the foreseeable future) only good for tourism.
Hollow lava tubes almost certainly exist on the Moon and Mars – we count many openings – “skylights” whose bottoms aren’t plumbed by orbital scans. In fact NIAC has supported small research efforts aimed at exploring these potentially valuable cave systems, which could be crucial for supporting extended human presence, for much roomier habitats that are safer from temperature swings, radiation, meteorites and blowouts. Most intriguing are pits inside Philolaus Crater near the north pole of the moon. "They might be skylights associated with a network of lava tubes formed not in volcanic lava flows, but in an impact melt sheet, the temporary pool of molten rock that ponded inside Philolaus Crater following the large impact that created the crater," combining the habitat attraction with water ice.
Caves may become important to the future of Mars exploration because they provide shelter from
the entire range of harsh surface conditions while maintaining near-pristine
interior surfaces and relatively stable microclimates. Mars Reconnaissance
Orbiter‘s (MRO) cameras have spotted hundred of “candidate” cave entrances, just in the area of the three Tharsis shield volcanoes. Many may just be shaded
alcoves but even those offer opportunities for potential future
explorers/colonists. There’s also a
chance that these sites have served as water-ice collection sites in places
much more convenient than the polar craters where the sun never shines.
A pretty good article detailing how well-prepared humanity is, for discovering and appraising asteroids that might impact the Earth, especially two vital survey telescopes in Hawaii. Alas, we are in more danger from comets, which can come in with little warning. But there’s work on that, as well. And the NGO-nonprofit you could join, to help prevent that particular catastrophe, is the B612 Foundation.
== Space tech ==
Meanwhile, Collins Aerospace has
unveiled its next generation spacesuit, which can be adapted to either
micro-gee or the lunar surface.
Vast sheets of ultra-light aerogel might be key to terraforming swathes of Mars. But there are tradeoffs. Strong
enough to last decades? Then when they shred do they become ultimate pollution?
Packing for Mars: The Curious Science of Life in the Void by Mary Roach explores the irresistibly strange universe of space
travel and life without gravity.
Soon to be released: Space Exploration: A History in 100 Objects - from Sputnik to Hubble and the Curiosity Rover, author Sten Odenwald visualizes the iconic objects that have enabled us to explore and see further into the cosmos.
Soon to be released: Space Exploration: A History in 100 Objects - from Sputnik to Hubble and the Curiosity Rover, author Sten Odenwald visualizes the iconic objects that have enabled us to explore and see further into the cosmos.
It’s widely believed that the Trump rush to get footprints on the moon is ego driven, to land before the end of his “second term.” But here we see another possible reason… An urgent hurry allows contracts to be given without abiding by competitive bidding and evaluation rules. I’m not saying this is so! But in light of what happened in Iraq, when Bush-Cheney family logistics companies were the beneficiaries of “emergency” no-bid contracts to the order of tens of billions, we should be wary.
Airbus, Boeing, and SoftBank are now developing stratospheric autonomous drones, capable of flying at (and even above) 60,000 feet. Intended to fly for months without intervention, the drones could deliver imaging and even internet services from above.
A new kind of space elevator would evade some of the safety and materials worries of earlier concepts. The Spaceline would be tethered to the surface of the Moon and dangle down into geostationary orbit around the Earth like a plumb bob. “Instead of rocketing all the way out of orbit, astronauts would only need to reach the end point of the Spaceline, cutting back the cost and challenge of rocket launches. Once it reaches the vacuum of space, free of terrestrial gravity and atmospheric pressure, the spacecraft would meet up with the cable and latch onto a solar-powered shuttle that would climb along its length."
My own concept for a moon-anchored space elevator goes in the opposite direction… outward away from Earth, and yet it would serve a similar function… plus one more, over the course of millions of years. Saving the Earth!
We can do all those things! But first -- save civilization.
