柳州哪里有算命比较准的算命先生呢新干算命哪个准,黟县哪算命算的好,潜江哪个地方算命准,双鸭山算命哪个准,开原哪里有算命先生,承德算命准的人,当涂哪有算命准的

NASA's OSIRIS-REx mission and the asteroid Bennu have had a date planned for two years, and just after noon ET today, they finally got to meet face to face. OSIRIS-REx fired its thrusters for a small burn, putting it about 4.3 miles from Bennu, marking the end of its journey to the asteroid.The mission -- which stands for Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer -- is NASA's first asteroid sample return mission. It launched in September 2016 and will spend two years up close and personal with Bennu. First images of the asteroid from the spacecraft's perspective have appeared as it got closer and closer.On Tuesday, the spacecraft will fly within 5 miles of Bennu, which will help design future orbits and map the surface.Over the next year, OSIRIS-REx will survey the asteroid using five scientific instruments on board the spacecraft. These instruments will help it determine a safe location from which to collect a small sample from Bennu's surface that will be returned to Earth in September 2023."Bennu's low gravity provides a unique challenge for the mission," said Rich Burns, OSIRIS-REx project manager at NASA's Goddard Space Flight Center. "At roughly 0.3 mile in diameter, Bennu will be the smallest object that any spacecraft has ever orbited."The sample from Bennu, a near-Earth asteroid, could help scientists understand not only more about asteroids that could impact Earth but about how planets formed and life began.OSIRIS-REx has a camera suite, a laser altimeter for 3D mapping, a thermal emission spectrometer to take temperature and mineral content and spectrometers to measure X-rays, nearly infrared and visible light.An arm mechanism called TAGSAM will reach out to collect the sample from Bennu's surface, making contact with the asteroid for five seconds in July 2020. During this contact, the arm will use a nitrogen gas burst to stir up rock and other materials on the surface so it can capture them. There is enough nitrogen for three attempts if the first is unsuccessful.NASA said the estimated 2.1-ounce sample size equates to about 30 sugar packets worth of dirt and rocks.The arm has a full range of motion, with joints capable of movement comparable to shoulder, elbow and wrist joints. It was "flexed" in space for the first time on November 14."The TAGSAM exercise is an important milestone, as the prime objective of the OSIRIS-REx mission is to return a sample of Bennu to Earth," said Dante Lauretta, OSIRIS-REx principal investigator at the University of Arizona, Tucson. "This successful test shows that, when the time comes, TAGSAM is ready to reach out and tag the asteroid."In 2021, it will be time for the spacecraft to essentially turn around and begin its two-year journey home. The sample will be packed into a capsule that will drop in the Utah desert in 2023.For two years after the return, the sample will be cataloged and analyzed. Afterward, 75% of the returned sample will remain at NASA's Johnson Space Flight Center so it can be used for more research by scientists from around the world.Why did NASA select Bennu out of the 780,000 known asteroids in our solar system?It was discovered in 1999, and scientists have been studying it ever since. The asteroid fits a number of criteria that make it intriguing and convenient.Bennu is relatively close to Earth, and its orbit even crosses that of our planet, making a close approach every six years. Though small asteroids can rotate very quickly, Bennu has a diameter just a bit bigger than the height of the Empire State Building and rotates relatively slowly, each 4.3 hours. This means OSIRIS-REx can match its velocity and touch down briefly.The asteroid could pass close to Earth, closer than the moon, in 2135, with even closer approaches possible in 2175 and 2195. A direct hit is unlikely, but the data gathered during this mission can help determine the best ways to deflect near-Earth asteroids.The asteroid is also old and well-preserved, full of valuable materials that may even contain clues about how life began. Bennu is essentially a leftover from the formation of our solar system billions of years ago, although some of the minerals inside it could be even older.This carbon-rich asteroid could be full of organic molecules, metals, platinum and even water -- the essential ingredients for life. It's because of objects like Bennu that these resources were delivered to Earth during its formation.Asteroids could even serve as fuel stations for robotic and human missions if we can unlock the hydrogen and oxygen inside them, NASA said.Bennu probably broke off of a larger asteroid in the asteroid belt between Mars and Jupiter a couple billion years ago. This knocked it through space until an orbit close to Earth locked it in place. And Bennu is believed to be a grouping of rocks held together by gravity rather than a single object.But its orbit drifts 0.18 miles each year toward the sun, and OSIRIS-REx will enable researchers to understand why and to predict Bennu's movements. This could also explain how it ended up as a near-Earth asteroid."The story of this asteroid is the story of the solar system," said Bashar Rizk, instrument scientist for OSIRIS-REx. "When we understand Bennu, we will understand something fundamental about our solar system."The-CNN-Wire 5356

NASA said that astronauts successfully grew radishes on board the International Space Station for the first time in NASA history.The plants are being placed in cold storage to be examined when astronauts return from the space station in 2021.NASA says that the radishes reached maturity in 27 days, and are fully edible and nutritious.“Radishes are a different kind of crop compared to leafy greens that astronauts previously grew on the space station, or dwarf wheat which was the first crop grown in the APH,” said Nicole Dufour, NASA APH program manager at Kennedy Space Center. “Growing a range of crops helps us determine which plants thrive in microgravity and offer the best variety and nutritional balance for astronauts on long-duration missions.”Growing plants on board could be an important step in order to send astronauts to Mars and beyond. NASA said its encouraged by the results given that radishes are easy for astronauts to maintain. 959

Model and actress Kim Porter, who shares three children with musician and entrepreneur Sean "Diddy" Combs, died Thursday, a representative of Combs told CNN.Porter was 47."Sadly, I can confirm the passing of Kim Porter. I ask that you give the families privacy at this time," Combs' publicist Cyndi Berger said in a statement.No information about the cause of Porter's death was released.Porter and Combs were a couple for more than a decade until 2007. They had twin daughters and a son together. Porter also had a son from a previous relationship.Beyond her modeling career, Porter made several film and television appearances over the years, including roles in "The Brothers" and the TV series "Wicked Wicked Game." 726

Millions of stimulus checks have gone out, but there are people still wondering where their checks are. Some might have thrown them out by mistake, but a local woman tells us she’s been getting the runaround about her check after complaining to the post office. Here’s how you can rebound from possible lost or stolen stimulus money.“I’m very hurt. I feel very let down,” said Racquel Hill from Warrensville Heights. She has no idea where her stimulus check is. “It’s something that I could still use. My children could use. And that I am in need of, she told us.She’s a single mother of two baby girls.“From February basically up to now, I’ve been without.”Hill showed us the IRS website reported her check was mailed on April 24. However, she also has a different address now. She had been living in Mayfield Heights.“Every time I contact (a representative of the Mayfield Heights Post Office), she tells me a different story,” said Hill. “She tells me, ‘Oh, we never received it. Then, she tells me it’s been forwarded back to the IRS. Then, she tells me it’s been forwarded to Warrensville Heights Post Office.”A spokesperson for the post office would not confirm if the overall USPS has received any similar complaints here or around the country.“Then where is it? Is someone stealing the check? Did someone mishandle the check?” questioned Hill. “I want to know what happened to the check and how many other people this has happened to.”“I know sometimes people aren’t really sure…what that check is,” said Scott Balfour. He investigates possible mail fraud through the USPS Office of Inspector General in Cleveland. He told us his office has had less than a handful of complaints about possible lost or stolen checks. “As an investigator what we are able to do is make contact with an investigator from the Treasury Department,” explained Special Agent Balfour. “They will let us know if that particular check has been cashed by someone it wasn’t intended for.”Hill told us Balfour is looking into her stimulus check problems. Meanwhile, The IRS within the last week or so sent out a warning about COVID-19 and stimulus check fraud. If you find that you haven’t gotten your check or debit card and you think it’s been stolen, you can file a claim at Tips.TIGTA.Gov.“Several different federal agencies are involved in this effort to monitor the mailing of those to make sure those checks get into the hands of people who deserve them,” said Balfour.He also said you can contact his office through USPSOIG.GOV or call 888-USPS-OIG.Hill said she is happy her case is getting attention but feels others might not be. “I feel sorry for me but I also feel sorry for other families, as well, who may be enduring this type of pain,” she told us.Keep in mind that the IRS still hasn’t gotten all of the checks out in the mail just yet, and there are many other reasons including filing status in the past two years that could impact how soon you see stimulus money.WEWS' Jonathan Walsh was first to report this story. 3023

More than 200 interviews have been conducted in the investigation into the disappearance of University of Iowa student Mollie Tibbetts, according to the special agent in charge.Tibbetts, 20, disappeared nearly two weeks ago in Brooklyn, a small community an hour east of Des Moines, according to the Poweshiek County Sheriff's Office.The hundreds of interviews are related to tips investigators have received, said Richard Rahn, the special agent in charge with the Iowa Division of Criminal Investigation for the Major Crime Unit. The sheriff's office is scheduled Tuesday to give an update on the investigation."People are concerned and wanting to help," Rahn said. "We welcome the phone calls and are doing everything."Investigators are continuing to evaluate data, going over the leads list, and having agents in the field to locate Tibbetts. Data includes social media and information from a Fitbit that Tibbetts is known to have."We live in a digital world," Rahn told CNN sister network HLN. "We'll look at cell phones, computers, social media sites, and everyone knows there's a Fitbit involved as well. We look at that, try to establish a timeline as best we can. We feel we have done that thus far."Investigators executed search warrants for Tibbetts' Fitbit, which she was known to wear, and her Snapchat, Instagram and Facebook accounts, Mitch Mortvedt, spokesman for the Iowa Division of Criminal Investigation, said last week. 1453