Of all the asteroids they modeled, the one with the largest risk of impact was a kilometer-wide asteroid known as 1994 PC1. Over the next thousand years, the probability that 1994 PC1 will cross within the orbit of the Moon is a paltry 0.00151%, hardly worth worrying about.
Thanks to Glen Hill over at Engagin’ Science (formerly Scientia, which apparently was far too Latin- and science-esque for search engines to handle) for bringing this (not-so Earth-shattering) info to my attention.
Sorry, folks. Hollywood was once again wrong (sigh).
Until the new Soyuz pulls up, emergency plans call for Rubio to switch to a SpaceX crew capsule that’s docked at the space station. Prokopyev and Petelin remain assigned to their damaged Soyuz in the unlikely need for a fast getaway. Having one less person on board would keep the temperature down to a hopefully manageable level, Russian engineers concluded.
The transmission ended. Gennaji felt liquid on his cheek.
Not tears. A blood bubble had alighted. He brushed it off angrily.
“Ory, what’s the source of this message?”
He grabbed the navigator’s seat and strapped in. Another splotch on the panel. He wiped it off with his forearm and turned on the aft video feed.
The lifepod had slipped behind and below them. Who was in it? Surely not Sergey. The old man had always said he’d rather die than—
Gennaji snapped his head up.
He unstrapped and bounced to another console. Fingers dancing, trying to remember. He slapped the console in frustration. Lena had always been better than him at controlling the drones and the arm for rock retrieval. He had relied on Andrej too much. Relied too much on others. If only there were an easier way to learn how to do this. He shouldn’t have to do menial work. He was the captain! He should give the orders and the others should follow! He…
The arm extended at last. He sighed. Was it too late?
Anyway, “SAR2667” provided some cross-cultural entertainment for people living in England, France, Belgium, and the Netherlands. Lots of photos and videos online.
Interesting note from ESA: they were able to detect it and notify everyone exactly where and when it would disintegrate.
Since there are more than 30,000 of these things that orbit the Sun relatively close to Earth’s orbit, it’s a good thing we’re getting better at detecting them. Maybe we’d better up the ante on deflecting them…
An asteroid is on its way to Earth, but don’t worry – the end is here Not here. The asteroid, named 2023 BU, is about the size of a van and is expected to miss our planet during Thursday’s flyby. However, according to a NASA scientist, it will be “one of the closest approaches of a known near-Earth object ever recorded.”
Since the Hayabusa2 returned with the sample from the Ryugu asteroid in December 2020, several important discoveries have been made – most notably analyzes confirming the presence of substances thought to be the building blocks of life on the asteroid, such as liquid water and organics fabrics.
Hayabusa-2 took several years to land on Ryugu (literally “Dragon Palace”), pound out just over 5 grams of asteroid material, and bring it back to Earth (landing in Australia in late 2020).
NASA scientists have confirmed not just frozen water but liquid — inside crystals called pyrrhotites. JAXA scientists (pictured above with Prof Tsuchiyama of Ritsumeikan University, my main employer!) continue to check the density of the samples.
The water is similar to the carbon dioxide-laden water of hot springs. The research teams have already discovered over 20 amino acids, the basic protein building blocks of carbon-based life.
Another theory called “panspermia” proposes that a key mineral (boron) missing on early Earth came in an asteroid from Mars. ☄️ Hmm. Did Mars produce asteroids? Or more like asteroids hit Mars and broke off lots of tiny fragments? That somehow survived the journey to Earth?
Seems a little unlikely. But there is now evidence that at least some proteins came from space rocks.
So, sorry, Ridley. This isn’t how it happened. Cool movie, though.
This installment is a bit longer than anticipated, so I will cut it into two parts. Metaphorically. Just like the Artemis crew will need to, following their agreement with the Mars colonies faction heads to train the afflicted settlers in controlling their odd new powers and sensations while assisting in distribution of temporary water and food supplies. Only Martin, the former Mars UN Overseer, who thinks he can manipulate the situation, is about to find out things are proceeding far faster than he planned. And Luna Base has a nasty surprise in store for Mars…
The storeroom chambers were nearly full by now. It had taken several days, but at last the food and water brought from Ceres had been stacked neatly, carefully portioned and labelled for each settler division. Orders were sent to each settler node requesting two or three representatives to bring their respective robotic platform dollies to the main supply chamber.
Cooper strolled casually along one earthen wall, rubbing a hand against the soil. He could feel the regolith composite materials, sense the minerals and hydrocarbon content. It would be so easy to extract and solidify what they needed, strengthen the structure. Or dig even deeper below the planet’s surface.
“Here,” Martin said, handing a pad to Cooper. “I’ve authorized the complete list of supplies brought by the Artemis. There’s my thumb verification, at the bottom.”
Cooper accepted the pad. He scrolled up to verify, nodding. “That should do it.”
“Now,” Martin said, addressing both Artemis crew members with him. “I’d like to find out what happened to my security chief, Hamels. She was outside the airlock when you dropped the ditrium on the ice cap.”
“First things first,” Enoch said. “We’d better make sure that the quantum teleportation nodes from Luna are severed.”
Martin turned pale. “That would seem a bit, er, final, wouldn’t it?”
Enoch grinned. “You bet. And necessary. Who knows what might come through the next time the UA turns the system on again?”
The geist spread his hands wide and made a booming sound, then laughed. The tall spacer slapped his crewmate on the shoulder, then both laughed hysterically for a moment. Martin stared at them. Cooper couldn’t help doubling over again, holding his stomach.
The “new” rock is apparently a meteorite that fell to Earth at least 100 years ago (or more, depending on how you define a “generation”). The two newly-identified minerals are being called “elaliite” (after El Ali, Somalia) and “elkinstantonite” (after NASA planetary evolutionary expert Lindy Elkins-Tanton).
And there’s still one more as-yet-unidentified mineral in the 70-gram rock fragment at the U of Alberta (the original is about 15 tons, and is reported to be the 9th largest such meteorite to have survived entering the Earth’s atmosphere). These three minerals evidently do not exist naturally on Earth. Makes you wonder how many other such minerals are still floating around in space.
And of course, how they might be used to make incredibly strong yet flexible spacecraft materials. (FWIW NASA was already talking about “new” materials such as carbon nanotubes and self-healing piezoelectronic “skins” some twenty years ago…)
Now, maybe it’s just me, but I have a feeling that a 15-ton rock falling into the desert would have raised all sorts of hell. At least locally. Nothing like a 143,000 ton rock, of course. Is there really no record of this thing falling out of the sky? Maybe it’s time to talk to non-European communities and to take their oral legends a bit more seriously.
Sorry that it’s been almost three months since posting more fiction. The colonists on Mars are still undergoing training by Riss and Sanvi so that they can understand and control their new abilities. Meanwhile, Bardish has headed out into space, where he met his destiny.
And Gennaji, who had been headed to discover Bardish’s fate on Luna, is now approaching his own.
“Prepare to board that Loonie ship,” Gennaji said tersely, unstrapping his flight harness.
Karel’s voice sounded void of emotion. As if the big man had gone numb.
Gennaji glanced over at his new navigator. It looked as if the man hadn’t slept at all since they left Ceres. Since their failure. Since Andrej betrayed him.
He couldn’t help himself.
“Pining for that backstabbing vybliadok?”
Karel shot him a glare that Gennaji could not back down from. He planted his magboots firmly down on the control room deck and returned the glare. Neither spoke for a moment.
“He made his choice,” Karel finally said. He kept his eyes firmly on his captain.
“Yes,” Gennaji said, crossing his arms. “He did. And you?”
“You agreed to join this crew. Standard sixteen-month contract.”
“For two more weeks.”
“Yes, two more weeks! A man makes a promise, a man keeps it. You have a problem with being a man?”
Karel turned red, clenched his fists.
“Captain,” said the pilot. “The Lunar skiff is changing course. Heading…directly at us!”
“What?” Gennaji took a step towards Orynko. He felt a big hand grab the back of his right upper arm, twisted him around to face behind him. The punch came in slightly off target, a glancing blow on the chin that sent him backward a step or two. He staggered, recovered, anticipated the left body blow and blocked with the inner part of his right arm. Karel fell forward, his momentum carrying him into his captain.
Gennaji immediately sidestepped, tripping the bigger man and forcing him into a headlock from behind. Left forearm under the man’s left shoulder and neck, right arm behind and locked with the left bicep. Twisted hips, pushed down to the floor, pinning his opponent down with his body weight.
Karel gasped, grabbed at the forearm, kicking futilely.