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According to a recent paper, the Earth is caught directly in the crosshairs of a cosmic hurricane.A swarm of nearly 100 stars, accompanied by an even greater amount of dark matter, is aimed directly at our stellar neighborhood and there's nothing we can do to stop it; in fact, the vanguard is already upon us. This sounds like a perfect summer blockbuster movie, starring The Rock and Chris Pratt, or maybe Scarlett Johansson and Charlize Theron.Except this is for real. But is it a danger? Well, actually, no. Not at all. But it's potentially incredibly fascinating, with lots of interesting scientific interconnections. So, what is really going on?The story starts last April, when the Gaia satellite announced the locations and trajectories of 2 billion stars in the vicinity of the Milky Way surrounding our sun. They released the data to the public.Scientists were then able to look at the data set to see if they could spot anything peculiar. In galaxies like the Milky Way, the most common behavior is that the stars orbit the center of the galaxy in a manner broadly similar to the planets orbiting our sun. However, there are some stars that exhibit unusual motion. About a year ago, astronomers identified some "stellar streams" passing through our celestial neighborhood.One of them, called S1 (for stream 1), consists of nearly 100 stars of similar age and composition, orbiting the Milky Way in a direction exactly opposite that of normal stars. It's kind of like a handful of cars driving the wrong way down the highway, except with a much greater distance between them and with no likelihood of a collision. These stars are spread out over a few thousand light years and they will pass through the solar system's neighborhood over the course of a few million years.Astronomers identified S1 as being part of the remnants of a dwarf galaxy that collided with the Milky Way and was consumed in an epic episode of cosmic cannibalism. Dwarf galaxies are very small, typically about 1% the mass of the Milky Way. They can orbit larger galaxies and collide with the bigger galaxy, adding their mass to the parent. This is what appears to have happened in the case of S1, although the process has taken probably a billion years.Dwarf galaxies often have a disproportionately large fraction of dark matter. Dark matter is a hypothetical and still-undiscovered form of matter that interacts only gravitationally. Scientists have proposed its existence to explain many astronomical mysteries, for example the observation that most galaxies rotate faster than can be explained by the known laws of physics and the stars and gas of which they are composed.While dark matter has not yet been observed, hypothesizing its existence is the simplest and most economical explanation for myriad astronomical mysteries. Averaged over the entire universe, dark matter is thought to be five times more prevalent than the ordinary mass of stars and gas and planets.In dwarf galaxies, the fraction of dark matter is often higher. In Fornax, a well-studied dwarf galaxy orbiting the Milky Way, researchers estimate that the dark matter is between 10 and 100 times greater than the mass found in its stars.If that number holds for S1, the dark matter of the S1 stream is passing through the Earth at a much higher velocity than the more ordinary dark matter that orbits the Milky Way -- about twice as fast. It is thought that S1 dark matter is flying through the solar system at a speed of about 550 km/s, or about 1.2 million mph. While these numbers are impressive, they are misleading. Dark matter, if it exists, is extremely diffuse and it will have no discernible effect on the solar system.Because dark matter hasn't been observed yet, these velocity numbers are speculative, although they are strongly supported by a very large body of evidence. However, the prospect of high velocity dark matter flying through the Earth has suggested an opportunity to detect it.In a paper in the prestigious journal Physical Review D, researcher Ciaran O'Hare and his collaborators calculated the possibilities of discovering dark matter using both existing and proposed dark matter detectors. They considered two varieties of dark matter particles: a very heavy kind called a WIMP (weakly interacting massive particle) and a very light kind called an axion. Because the ultimate nature of dark matter is not known, it is important to be open to all possibilities.They found that the detectors they evaluated could find WIMPs for certain ranges of the particle mass. However, when they looked at the axion possibility, it appeared the prospects were even better. Because of its light mass and the manner in which an axion would interact with the detector, the apparatus simply has a better chance of seeing the axion. (If axions exist, of course.)Experiments with names like ADMX, MADMAX and ABRACADABRA are able or will be able to search for the signatures of dark matter proposed in the recent paper. They consist of technologies that are designed to interact with axions in a strong magnetic field and convert them to ordinary microwaves or radio waves that can be easily detected.It's important to remember that the S1 stream poses no credible threat to the Earth and humanity. There is no need for an action hero to save us. However, the synergy of science is staggering. A careful catalog of nearby stars has opened the prospect of a better possibility of finding and identifying dark matter, which is one of the great unanswered mysteries of modern physics. It's an amazing time we live in, in which we can study such things.\ 5625

ALPINE, Calif., (KGTV) -- Some residents in Alpine are ramping up their yard work after Governor Gavin Newsom proclaimed a State of Emergency for the Calfornia's most wildfire-prone areas. Alpine residents have a name for yard work. "It's a necessary evil. We have to clear it out," Jonathan Hesse said. 10News met Hesse as he and his son Ben were raking brush and chainsawing a dead tree on their front yard. "The drought, they [the trees] couldn't handle it anymore. So they died," Hesse said, pointing at the row of what used to be lush trees. He said the time had come to chop them down because he was sure they would ignite his entire 2.5-acre property. In the last two decades, the Hesse's have had three close calls. Their last evacuation was the 2018 West Fire. Luckily, they survived, as did their home. But they are not taking chances. "This year, there's a lot of weeds, and that's going to be tough to keep up with," Hesse said. Luckily, he has a helpful son and a sturdy tractor to help with the clean-up process. They will eventually put their large pile of dead logs and branches through a wood chipper to make mulch. Thanks to the work they did today, the flammability of their home is much lower than it was yesterday. "That's one thing we want to do. We want to make sure it doesn't get out of control," Hesse said. This week, CalFire-San Diego posted a video to remind residents to clear up brush and create defensible space.For more information, click here. 1487

Amazon is providing its front-line workers a bonus as a “thank you” amid an influx of business due to the COVID-19 pandemic, the company announced Monday.The bonuses range from 0 for Amazon Flex drivers to ,000 for Delivery Service Partner owners. The bonuses will be paid to employees who worked the entire month of June, the company said.“My thanks and gratitude for the truly remarkable commitment to customers you have shown throughout this journey. I have never been more proud of our teams,” said Dave Clark, SVP WW Operations.Amazon announced the following bonuses for its employees:· 0 for full-time Amazon employees, Whole Foods Market employees, and Delivery Service Partner drivers· 0 for part-time Amazon employees, Whole Foods Market employees, and Delivery Service Partner drivers· ,000 for all front-line Amazon and Whole Foods Market leaders· ,000 for our Delivery Service Partner owners· 0 for each Amazon Flex driver with more than 10 hours in JuneAmazon said it added 175,000 employees since the beginning the pandemic. 1064

ABBEVILLE, La. (AP) — Hurricane Delta sped up one Louisiana couple's wedding by a few days but judging by the smiles on the bride and groom it certainly didn't dampen the affair. Ian and Taylor Gaspard from Abbeville were supposed to get married on Saturday, Oct. 10. But Hurricane Delta had other plans. After watching the hurricane slowly make its way toward Louisiana they swiftly changed gears and held the wedding Thursday with friends and family in attendance. The streets outside were largely deserted as residents finished up last-minute storm preparations or evacuated. The smiling bride said the ceremony was "beautiful."Hurricane Delta made landfall Friday at 6 p.m. CT near Creole, Louisiana, as a category 2 hurricane. 739

According to multiple media outlets, steakhouse chain Sizzler has filed for bankruptcy amid the pandemic.CNN reported the California-based chain filed for chapter 11 bankruptcy protection, which only covers 14 company-owned restaurants, not its international locations or more than 90 franchised restaurants in the US.According to Business Insider, the restaurant filed for bankruptcy due to closing its indoor dining and declining sales.The Wall Street Journal reported that Sizzler USA CEO Chris Perkins also blamed the landlords refusing to abate rent due to an economic impact due to the coronavirus.Sizzler was founded in 1958 and once was one of the casual restaurant chains in the US. 699