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(CNN) -- Scientists have discovered a "monster black hole" so massive that, in theory, it shouldn't exist.It's a stellar black hole ¡ª the type that forms after stars die, collapse, and explode. Researchers had previously believed that the size limit was no more than 20 times the mass of our sun because as these stars die, they lose most of their mass through explosions that expel matter and gas swept away by stellar winds.This theory has now been toppled by LB-1, the newly-discovered black hole. Located about 15,000 light years away, it has a mass 70 times greater than our sun, according to a press release from the Chinese Academy of Sciences.The findings were published by Chinese researchers in the journal Nature on Wednesday."Black holes of such mass should not even exist in our galaxy, according to most of the current models of stellar evolution," said Liu Jifeng, head of the team that made the discovery. "LB-1 is twice as massive as what we thought possible. Now theorists will have to take up the challenge of explaining its formation."Scientists are now scratching their heads at how LB-1 got so huge.The Chinese team has proposed a number of theories. LB-1's sheer size suggests that it "was not formed from the collapse of only one star," the study said -- instead, it could potentially be two smaller black holes orbiting each other.Another possibility is that it formed from a "fallback supernova." This is when a supernova -- the last stage of an exploding star -- ejects material during the explosion, which then falls back into the supernova, creating a black hole.This fallback formation is theoretically possible, but scientists have never been able to prove or observe it. If this is how LB-1 formed, then we may have "direct evidence for this process" for the first time, the study said.LB-1 is not the biggest black hole ever discovered -- but it may be the largest of its kind. There are several types of black holes, and stellar black holes like LB-1 are on the smaller side, according to NASA. Supermassive black holes are much bigger -- they can be billions of times the mass of our sun.Scientists believe supermassive black holes may be connected to the formation of galaxies, as they often exist at the center of the massive star systems -- but it is still not clear exactly how, or which form first.Stellar renaissanceStellar black holes are believed to be commonly scattered across the universe, but they are difficult to detect because they do not normally emit X-rays -- only doing so when they gobble up gas from a star that has ventured close enough. They are so elusive that scientists have only found, identified, and measured about two dozen stellar black holes, the press release said.The researchers at the Chinese Academy of Sciences tried a different approach. Instead of looking for X-rays emitted by black holes, the team looked for stars that were orbiting some invisible object, being pulled in by its gravity.Their efforts paid off -- they soon spotted a giant star eight times heavier than the sun, orbiting around what turned out to be LB-1."This discovery forces us to re-examine our models of how stellar-mass black holes form," said David Reitze, a physicist at the University of Florida. In May, Reitze's team made its own breakthrough discovery -- observing the never-before-seen collision of a neutron star and a black hole, which sent out ripples in space and time.These twin discoveries -- the collision, and now LB-1 -- indicate that scientists are reaching "a renaissance in our understanding of black hole astrophysics," said Reitze in the press release.There have been several other discoveries over the past year that have added to this renaissance. In October, researchers discovered what they believe to be a new type of black hole, smaller than the other kinds. And earlier this week, astronomers discovered a black hole that is actually helping baby stars grow instead of destroying them. 3971

(KGTV) - Did doctors really remove 526 teeth from one boy's mouth?Yes!The teeth were tucked inside the lower jaw of a 7-year-old boy from India.He had a swollen cheek that doctors thought was caused by a decayed tooth.But upon further examination, they discovered he had a condition that caused 526 teeth to be embedded in his jaw.It took a five hour operation to remove them all.The boy is doing well and now has a normal set of 21 teeth in his mouth. 460

(CNN) -- We've all been tempted to bring a little bit of paradise home from our holidays. But the urge has backfired on a French couple, who are facing up to six years in prison for removing sand from a beach in Sardinia, where they had been on vacation.The Italian island's white sand is protected, and tourists face fines and even jail time for removing it from local beaches -- but the couple say they did not realize they were committing a crime.Police in the northern city of Porto Torres found the sand while making routine checks on cars waiting to board a ferry to Toulon in southern France.They spotted some bottles filled with sand through the window of the car, and arrested the couple, a man and woman in their 40s, police told CNN.Overall, 14 plastic bottles containing around 40 kilograms (88 pounds) of white sand were seized, police said.The couple were reported to a court in the city of Sassari for aggravated theft and they risk a fine of up to €3,000 (,300) and between one and six years' imprisonment.Police told CNN that the tourists said they were unaware of the laws about removing sand, but noted that the island's beaches have signs in several languages informing visitors.Theft of white sand and rocks from Sardinia's beaches is very common, a police officer said, and there is an illegal market for them on the internet."The people of Sardinia are very angry with tourists that steal shells and sand, because it's a theft (from) future generations that also puts at risk a delicate environment," the officer told CNN.Sand thieves are usually picked up at airports, in bag searches and by scanners.A Facebook page, "Sardegna Rubata e Depredata" -- "Sardinia, robbed and plundered" -- which was set up by a group of security officials from the island's airports, campaigns against the depletion of Sardinia's beaches."The purpose of the page is to raise public awareness about this problem," one of the page administrators previously told CNN Travel."During the last 20 years of activity we have seized tens and tens of tons of material ... Every year we take care to bring everything back to the places of origin at the end of the summer season." 2183

(KGTV) - California regulators are considering a plan to charge a fee for text messaging on mobile phones to help fund programs that make phone service accessible to the poor.The California Public Utilities Commission (CPUC) is set to consider the proposal in a vote scheduled for next month, according to The Mercury News. It's not clear how much mobile phone users would be asked to pay under the proposal, but it would likely be billed as a flat surcharge, not a per-text fee, according to the paper.And wireless industry and business groups are not "LOLing." The groups are reportedly already trying to defeat the proposal before it makes its way to the commission.¡°It¡¯s a dumb idea,¡± Jim Wunderman, president of the Bay Area Council business-sponsored advocacy group, told the Mercury News. ¡°This is how conversations take place in this day and age, and it¡¯s almost like saying there should be a tax on the conversations we have.¡±The new surcharges could generate a total of about .5 million a year, according to business groups. The same groups warned that under the proposal's language, the charge could be retroactively be applied for five years, totaling more than 0 million for consumers, the paper reported.Click here for a look at the proposal.The proposal argues that the state's Public Purpose Program budget has increased from 0 million in 2011 to 8 million in 2016, while revenues funding the program from the telecommunications industry saw a "steady decline" from .5 billion in 2011 to .3 billion in 2017.The report calls this "is unsustainable over time."In a statement to the Associated Press, CPUC spokeswoman Constance Gordon said, "from a consumer's point of view, surcharges may be a wash, because if more surcharge revenues come from texting services, less would be needed from voice services." 1845

(KGTV) -- A large number of applicants flooding California State University's website forced the school to extend its deadline. The university system tweeted Saturday that an ¡°extremely high volume of applicants were attempting to submit applications.¡± As a result, CSU extended the deadline to December 1, 2019 at 11:59 p.m. RELATED: Audit says CSU stashed away .5 billion and raised tuitionIt¡¯s unclear how many applicants were having trouble submitting applications Saturday. Click here for more information on the extended deadline. The university is spread out across 23 campuses and eight off-campus centers, making up the nation¡¯s largest four-year public university system. As of 2019, 481,000 students attend the university. 744

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