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All national forests in California will close Wednesday evening as the state sees “explosive growth of fires throughout” the state.The U.S. Forest Service closed eight national forests in Southern California Monday night, and the rapid growth Tuesday in windy weather conditions led to the decision to close the remaining ten forest areas.Nearly 2.3 million acres have burned already this year, setting a state record. Roughly two dozen wildfires are burning currently. “The number of large fires and extreme fire behavior we are seeing across the State is historic," said Regional Forester Randy Moore in a release. "These temporary closures are necessary to protect the public and our firefighters, and we will keep them in place until conditions improve and we are confident that National Forest visitors can recreate safely.”More than 140 people had to be rescued from the path of the Creek Fire this week, some were hikers and campers trapped without a way to escape the rapidly spreading flames. The Creek Fire is burning in part of the Sierra National Forest, which was closed to visitors on Monday.The Forest Service manages 18 National Forests in California, which take up almost 20 million acres. Those designated forests also supply 50 percent of the water in California. 1290

After three days of speeches from the Democratic Party's top brass, Thursday marks the convention's highlight — Joe Biden's acceptance speech for the party nomination.Biden will deliver his acceptance speech from his home state of Delaware — a speech he's been waiting to give for more than 30 years. Biden first ran for president in the 1988 cycle and ran again in 2008 — which eventually landed him the role of Vice President.While many national polls show Biden holding a double-digit lead over Trump, but Biden has mostly shied away from the spotlight during the general election cycle, preferring to hold virtual campaign events from his home amid the pandemic. With an audience of millions tuning in, Biden will face the most high-profile test of his campaign to date.Biden will also be competing for airtime against his general election opponent, President Donald Trump, who scheduled an interview on Fox News during the 9 p.m. hour — just as the DNC is getting underway for the evening.Several of Biden's opponents in the 2020 Democratic primaries will deliver speeches ahead of him this evening, including former South Bend Mayor Pete Buttigieg, former New York Mayor Michael Bloomberg and Sen. Corey Booker (D-New Jersey).Thursday's program will also feature rising female stars in the party, like Sen. Tammy Duckworth (D-Illinois) and Atlanta Mayor Keisha Lance Bottoms.John Legend, Common and The Chicks (formerly known as the Dixie Chicks) will offer musical performances during Thursday's event.See a full schedule of Thursday's speeches and performances below.“This Time Next Year”A "collection of everyday Americans and prominent leaders" describe where they want the country to be a year from now.Remarks by 2020 presidential candidate Andrew YangIntroductionActress Julia-Louis DreyfusPledge of AllegianceLed by Cedric Richmond, Jr., son of Rep. Cedric Richmond (D-Louisiana)National AnthemPerformed by The Chicks (Natalie Maines, Martie Erwin Maguire, and Emily Strayer)InvocationDelivered by Sister Simone CampbellRemarksSen. Chris Coons (D-Delaware)Atlanta Mayor Keisha Lance BottomsA Tribute to John LewisDirected by Dawn PorterMusical performanceJohn Legend and CommonRemarksJon Meacham, writer and authorRep. Deb Halaand (D-New Mexico)California Sec. of State Alex PadillaMichigan Sec. of State Jocelyn BensonSen. Cory Booker (D-New Jersey)“You Built America”:A Conversation on the Economy with Joe BidenRemarksFormer U.S. Surgeon General Dr. Vivek MurthySen. Tammy Baldwin (D-Wisconsin)The Biden Plan: Military FamiliesJoe and Jill Biden show commitment to military families in video.RemarksSen. Tammy Duckworth (D-Illinois)Tribute to Beau BidenRemarksFormer South Bend Mayor Pete Buttigieg“United We Stand”A video that explores Biden's political opponents in the 2020 Democratic primariesRemarksFormer New York Mayor Michael BloombergThe Biden GrandchildrenVideo focused on Bidewn's family lifeRemarks by Biden's children, Ashley and HunterIntroduction of Joe BidenJoe Biden Acceptance Speech 3026

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

A Wisconsin woman who jumped in front of an oncoming train to save her mom is now feeling well enough to share her story. The incident first happened back in August.Katie Wenszell, 28, is a Milwaukee teacher. She, her mom and her sisters were on a girls trip to Atlanta, waiting for a train, when the unthinkable happened to her mother."All of a sudden, the guy came out of nowhere and just pushed her. I didn't have any time to grab her. She was literally in the air and hitting the tracks," Katie said. Katie remembers bits and pieces of the day, but says her sister told her she walked to the end of the platform and was trying to yell for her mom to get up."Then, I looked down to see the training coming and all I did was jump. She had her head and feet on the tracks? And I knew that if I didn't get her off, she was going to die no matter what. I decided it worked in the movie, let's lay her out flat, lay me down flat, and hopefully pray to god that it will work."Katie says she does not remember what happened after she jumped, that it "all becomes literally black."Although they don't know for certain what happened underneath the train, it appears Katie's plan worked.  Her mom, Susan says "she managed to get me between those two tracks. That train went over the top of me. I never got hit by that train."Susan did suffer a concussion and severe head injuries from the fall. The train did hit Katie, as it was coming to a stop.When asked about her injuries, Katie said she has "a reconstructed shoulder, smashed my face, so I have plates in my face. And I have amputated toes."She also believes the train dragged her by her necklace, causing serious injuries to her neck. She woke up in the hospital five days later with a tube down her throat."Literally the moment it got taken out, is my mom OK was the first thing that came out of my mouth. What did they tell you? They said yep, she's fine, she's here," Katie said. Katie says she was ecstatic to find out her mom was alive, although her mom was upset that Katie risked her life to save her. "She's 28, I'm 57. My goodness, I've had my life," Susan said. That life now includes helping Katie get better so she can walk on her own again. The amputated area is healing so well, Katie wanted to show it to us."When I first saw it, I was the only one who took it perfectly fine. After it started going down, I was like mom, look at the tiny alien foot, because it's really tiny," Katie said. As you can see, Katie has a really positive outlook and is working hard to walk again. She was supposed to be in China right now, teaching English and still hopes to go at some point.As for the stranger who pushed her mom, another passenger held him until authorities arrived.  The family has a Go Fund Me page to help with Katie's medical bills.  2870

ALTADENA, Calif. (KGTV) -- Four off-duty marines along with a rescue team rescued a hiker having a medical emergency on a hiking trail near Los Angeles Sunday.According to the Los Angeles County Sheriff’s Department, a team received the rescue call around 4 p.m. Sunday near Switzer Falls.When the rescue team arrived, they found four off-duty marines from Camp Pendleton who had run into the hiker and carried him upstream for a quicker rescue.Officials say the hiker wasn’t injured and was taken to the hospital to recover.Watch he rescue video in the player below:  581