临沭算卦准的地方(台州算命的在那里) (今日更新中)

A Japanese space probe has successfully fired a "bullet" into an asteroid as part of a mission to collect rock samples from the celestial body.The projectile disturbed material from the exterior of asteroid Ryugu which then floated from its surface due to the weak gravitational field.These particles were successfully collected by the probe, according to Japan's space agency JAXA, which announced that the Hayabusa 2 craft had successfully touched down on on the asteroid on Friday morning Japanese time.JAXA scientists had expected to find a powdery surface on Ryugu, but tests showed that the asteroid is covered in larger gravel.As a result the team had to carry out a simulation to test whether the projectile would be capable of disturbing enough material to be collected by what scientists call a "sample horn," which protrudes from the underside of the probe.This video shows the success of a December 28 test, which green-lit the asteroid landing.The team is planning a total of three sampling events over the next few weeks.Hayabusa 2 will depart Ryugu in December 2019 and return to Earth by the end of 2020 with its precious cargo of samples, which will be analyzed by scientists such as John Bridges, a professor of planetary science at the University of Leicester, UK.Bridges, who was also involved in the first Hayabusa mission, told CNN via telephone on Thursday that the event was "nail-biting stuff" due to the extreme precision involved in landing on Ryugu."This is a significant mission," said Bridges. "Sample return missions are particularly exciting."He told CNN that the Hayabusa 2 mission is interesting because Ryugu is a C-class asteroid which humans haven't visited before."One thing I'm pretty sure of is that it will throw up some unexpected results," said Bridges, who believes that information from Ryugu samples could make us think again about the early evolution of the solar system.Beneath their desolate surface, asteroids are believed to contain a rich treasure trove of information about the formation of the solar system billions of years ago.C-type asteroids, which are largely composed of carbon, are the most common variety of asteroids, comprising more than 75% of those currently discovered. The other two main types of asteroid are the metallic S- and M-types, according to NASA.Ryugu is expected to be "rich in water and organic materials," allowing scientists to "clarify interactions between the building blocks of Earth and the evolution of its oceans and life, thereby developing solar system science," JAXA said.If Hayabusa 2 makes it back to Earth on schedule it will be the first mission to bring back samples from a C-class asteroid.JAXA scientists are currently racing NASA for that historic achievement, with the US agency's own sample retrieval mission due to arrive back on Earth in 2023.Even reaching the asteroid is a massive achievement as it is the equivalent of hitting a 6-centimeter (2.4-inch) target from 20,000 kilometers (12,400 miles) away."In other words, arriving at Ryugu is the same as aiming at a 6-centimeter target in Brazil from Japan," said JAXA.The-CNN-Wire? & ? 2019 Cable News Network, Inc., a Time Warner Company. All rights reserved. 3233

A giant jellyfish the size of a human has stunned a diver off the south-western coast of England.The incredible creature -- a barrel jellyfish -- was spotted near Falmouth by broadcaster and biologist Lizzie Daly, who described the encounter as "breathtaking.""What an unforgettable experience," she added. "I know barrel jellyfish get really big in size but I have never seen anything like it before!""It was the best thing I've ever done," she said in a video of the meeting.Daly, who was exploring the waters as part of her campaign "Wild Ocean Week," added the jellyfish was a big as she is.Barrel jellyfish are the largest species of jellyfish in British seas, but it is extremely rare to spot one of the size Daly did.They typically grow up to one meter (3.2 feet) and weight up to 25 kilograms (55 lbs), according to The Wildlife Trusts. Barrel jellyfish are frequently washed up on the UK's coastlines during the summer months. 947

Safety concerns are arising about yet another piece of furniture sold by major retailers like Amazon, Walmart, Sears and Home Depot. 146

A car plowed into bicyclists and pedestrians on a street in New Orleans, killing two people and injuring six others as the city celebrates Mardi Gras festivities.A majority of the people struck Saturday night were on bicycles, but it's unclear how many, Police Chief Shaun Ferguson said. Of the people injured, three are in critical condition.The driver, Tashonty Toney, 32, was arrested and faces several charges, including two counts of vehicular homicide, hit and run, and reckless operation, the New Orleans Police Department tweeted.Toney was not injured, and had originally fled the scene, Ferguson said"We were able to apprehend the subject so quickly because citizens stopped this individual, because they thought they were helping someone who had just been involved in a one-car accident," Ferguson said.Officers determined that the accident scene spanned several blocks of Esplanade Avenue. Earlier, police had said they are investigating whether the driver was intoxicated, and standard protocol involves breathalyzer and blood tests.Police did not provide details on the people killed or injured. The Orleans Parish Coroner's Office will release the victims' identities after autopsies are completed and family members notified.While no motive is currently known, the incident does not appear connected to the Endymion parade, a Mardi Gras-related activity that was happening nearby, Ferguson said.The crash comes about two years after a drunken driver rammed into a crowd taking part in the Endymion parade, injuring at least 28 people. The driver in that 2017 crash, Neilson Rizzuto, was charged with vehicular negligence resulting in injury, and reckless operation and hit-and-run driving.The Endymion parade is one of the most popular events leading up to Mardi Gras, which is Tuesday. Mardi Gras is a day of revelry that includes parades, parties and food before the Christian fasting season of Lent begins on Ash Wednesday. It marks the last day of the Carnival season. 2001

(CNN) — Disney is going to pick up the tab for workers who attend the University of Central Florida.The company and UCF made the announcement on Thursday.The university is the state's largest and is only a short drive away from the Walt Disney World Resort, which makes it convenient for workers pursuing an education.For those who don't want to make the 30-mile drive to the main campus, there are 10 fully online programs they can access, Disney and UCF 468

来源：资阳报