Let’s all whooooosh together. No REALLY whooooooooooooooosh! Think I’m being silly?? Well, rather than me going on about the silliness of the Space Lettuce today, enjoy it verbatim:
“Scientists think there’s a “dark matter hurricane” heading toward Earth. In fact, it might even be blowing through us already.
But don’t worry — it’s definitely not going to kill you. Mostly, it’s just a bunch of normal dark matter with especially good branding. And it really is headed (more or less) this way.
Here’s what’s going on: Back in 2017, astronomers spotted a stretched-out line of stars passing through our solar system’s general region of the Milky Way. The scientists named this group the “S1 stream,” identifying it as the nearest of several stellar streams moving through the galaxy. Parades of stars like these form when the Milky Way gobbles up a dwarf galaxy, stretching the smaller object out in the process. In a new paper, published Nov. 7 in the journal Physical Review D, researchers argued that S1 might be carrying with it a hefty load of dark matter from the original dwarf galaxy. And they gave that baggage the snazzy name “dark matter hurricane.”
Again, that hurricane is not going to kill you. Or blow the door off your house. But it just may cause some local spikes in dark matter, which would help researchers hunting dark matter actually find the stuff, the researchers wrote.
That’s because all galaxies, but especially dwarf galaxies, are held together by dark matter, physicists believe. So, the galaxy that was torn to shreds birthing the S1 stream likely dumped a bunch of dark matter into the stream’s path.
The problem is, no existing dark matter-detection devices have actually worked, in part because they’ve all been designed based on educated guesses as to what dark matter really is. (Scientists have very good reason to believe dark matter exists but are still guessing about its composition.)
So, the physicists behind the recent paper calculated how dense S1’s dark matter would have to be to influence signals at several soon-to-be-built dark matter detectors. When those detectors come online, scientists will know a lot more about the “hurricane” and whether it’s really blowing through our stellar neighborhood.
Until then, it’s fun to think about, isn’t it? A dense cloud of dark matter from a dead galaxy blasting invisibly through us as it follows the remaining stars on their doomed parade.
(Originally published on Live Science.)
–Syllamo was here, in studio…he brought an arm!!
–Ommomma….wait, Oummoommmua….okay, THIS time for sure…Oumuamua is here. Harvard sees aliens. Do you? Hope not!!
–RIP ROY!! We miss and muse over the music and magic that was Roy Clark!
–And what the HELL is with that pic that NASA used as a thumbnail for a Mars story???
We ask LC King. And Zack. And you! Our guest (and friend!) Lucas is here today, discussing an engine he built. No, this isn’t a modded hot rod engine, or made for bio-diesel, no, this engine runs on water. Yes, water. And just about anything else he threw at it. Zack was explaining the GEET...
I DID say today’s description would be all links! We had so many great comments and links in chat today, including a way to finally find freedom from fiat and be fiscally flush (See Doc’s links below!!) that to have NOT included these links would have been a crime! Science loves DEMONS: https://www.newyorker.com/books/under-review/sciences-demons-from-descartes-to-darwin-and-beyond Demon emojis...
We hit the ground hard with feeling this Friday, lots of raw emotion over lots of raw shite. Folks are fed up, as are the hosts, reflected back as we try to keep up with all the genius-level commentary flowing through our flat-chat. –Blood once again seems to be the key, thanx Liz!! Shocking!!! –Sit...
We are back! Back to the normal flow of our Abby Normal show…as normal as we can be in a whirled where normal is insanity, sanity is a conspiracy, and conspiratio doctrina fecit carpe diem…wait, what?? We review a bit of what has been, talk a bit of what could be, and have a lot...
Get out your scrying mirror fondle-slab and get ready to look into the far-reaching future of…3 days from now!! See what wonders the future holds for us Neolithic hangers-on as we are swept away by time’s white-water rapids! Flying cars? Communicator watches?? Talking refrigerators…with TVs built right in??? You ARE the future, so lose the...
SILLY SATURNALIA/SOLSTICE/STAR-CONJUCTION SEASONAL CELEBRATION SONIFICATION! Sans Walter were are adrift on the sea of Space Lettuce. Only to to be joined by a sleepy (and later, sleeping) Johnathon From Jersey. We finally find a port in the storm, as we take time to appreciate the the listeners, chatters, friends and femily, this Christmas. With love,...