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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

After Fox News host Sean Hannity accused late night comedian Jimmy Kimmel of being a "pervert," Kimmel said on Sunday that he is ending his war of words with Hannity. Kimmel drew Hannity's ire earlier this week after Kimmel played a clip of First Lady Melania Trump reading to children during the White House Easter Egg Roll. Kimmel then joked with his sidekick, who is often lampooned on the show for having a thick accent, saying that he could be First Lady. "Jimmy, you're a despicable disgrace," Hannity told Kimmel. "Ass clown Kimmel," Hannity added. Kimmel responded to the criticism on Thursday's show by calling Hannity an "ass circus." Hannity then fired a number of tweets with the hashtag #PervertKimmel and calling Kimmel "Harvey Weinstein Jr.," a response to a "Man Show" segment where Kimmel would ask women to guess what is in his pants. The segment involved Kimmel asking women to feel the outside of his pockets to guess what was hidden inside. Kimmel by responding that Hannity was trivializing "the horrors of Harvey Weinstein by comparing them to televised comedy bits in which every woman was a willing participant who gladly signed a release.""Stop picking on woman that can’t fightback Mr Harvey Weinstein jr," Hannity responded. "And maybe pledge not to ask 18 year old girls to touch your crotch and put their mouths on it like you did. Why don’t You Be a grown up and simply apologize."On Sunday, it appeared Kimmel had enough.  1542

After years of struggling, one Kansas mother finally has peace of mind. She can now walk through the park with her daughters free of fear. However, living without fear doesn’t mean living without worry.“It feels unsafe to be who you are sometimes,” said J, a mother of two living in Lawrence, Kansas. The mother wishes to be called J in order to protect her identity, because even in a community where legally she should be safe, J is still concerned.“We know what it's like to be living in fear…to have that uncertainty,” said J, referring to her years growing up undocumented in the United States. Now, even though she is a citizen, she worries the current administration will find ways to strip her of her rights.Growing up undocumented taught J about a different side of the American dream. It meant asking neighbors to use their name for utilities and not accessing community resources.“Calling the police on someone…definitely we stopped ourselves because we don't want those questions,” said J.She saw the same fear in her own daughter’s eyes as her family worked for over four years for her husband to become documented.“Our daughter has asked what would happen to her dad if he was pulled over. Would he be taken away? It’s just a constant fear of are your parents going to come home that day?”Now that her family is documented, J wants to use her voice to help others in her community stop feeling that same worry. It’s a feeling she’s still confronting herself, especially after Immigration and Customs Enforcement raids last year ended in the wrong man getting arrested and federally detained in her own community, a typically quiet college town.“You can't even walk without looking the way that we look and someone saying, ‘I bet that person is undocumented, and they're probably a criminal, so let's get them,’” said J.So, she joined a group called Sanctuary Alliance, a grass-roots movement fighting to designate the city of Lawrence as a sanctuary city.It took a year of meetings and discussions, but just weeks ago, the city commission voted.The sanctuary ordinance was approved.So, what does it mean to be a sanctuary city? The Lawrence, Kansas ordinance says: no city department can ask about immigration status, including the police and the court system; Anytime an ID is required, a resident can present identification valid in their home country; all city services, including transit, parks and utilities are available to all residents, regardless of immigration status; and if anyone asks about their status, there are ways people can safely report violations to the city.“It’s a big step toward creating safety for the community,” said J. “People think that becoming a sanctuary city will bring criminals in because obviously undocumented people are criminals. They're not. Statistically, a sanctuary city will become safer because the citizens who are undocumented will now not be afraid to call the police."Safety in this community is just the start of the conversation. Sanctuary Alliance is now pushing for a county-wide sanctuary to help more families live life outside the shadows.But while that fight continues, J takes comfort in hey city’s ordinance bringing a new era of unity this community has never seen before.“There's still some work that needs to be done, but it will make it better,” said J. 3340

Amazon is raising the price of Amazon Prime from to 9 per year.The company announced the price hike for its membership program during a call with investors Thursday. The change will go into effect May 11, and it will apply to Prime renewals beginning June 16."We continue to increase the value of Prime," Amazon CFO Brian Olsavsky said on the call, adding that the company has added "digital benefits," like Prime Video.He noted that the company is seeing "rises in cost" for providing Prime services, which include shipping perks and video streaming. 566

ALBANY, N.Y. (AP) — Former "Sex and the City" star Cynthia Nixon said on Twitter Monday that she'll challenge Gov. Andrew Cuomo in New York's Democratic primary in September.Her announcement sets up a race pitting an openly gay liberal activist against a two-term incumbent with a million war chest and possible presidential ambitions.In a video on Twitter, the public education advocate said, "We want our government to work again." 445