哈密包皮割的好处和坏处(哈密性功能障碍生孩子) (今日更新中)

On Monday, the NASA Mars InSight lander survived the "seven minutes of terror" during entry, descent and landing to safely arrive on Mars and took up permanent residence on the Red Planet. Unlike the rovers already on the Martian surface, InSight will stay put during its planned two-year mission.What will the stationary craft do until November 24, 2020?InSight has already been busy. Since landing, it has taken two photos and sent them back as postcards to Earth, showing off its new home. These initial images are grainy because the dust shields haven't been removed from the camera lenses yet.And late Monday, mission scientists were able to confirm that the spacecraft's twin 7-foot-wide solar arrays have unfurled. With the fins folded out, InSight is about the size of a big 1960s convertible, NASA said."We are solar-powered, so getting the arrays out and operating is a big deal," said InSight project manager Tom Hoffman at NASA's Jet Propulsion Laboratory. "With the arrays providing the energy, we need to start the cool science operations. We are well on our way to thoroughly investigate what's inside of Mars for the very first time."The solar arrays are key to helping InSight function. Although Mars receives less sunlight than Earth, InSight doesn't need much power to conduct its science experiments. On clear days, the panels will provide InSight with between 600 and 700 watts -- enough to power the blender on your kitchen counter, NASA said. During more dusty conditions, as Mars is known to have, the panels can still pull in between 200 and 300 watts.Within the next few days, InSight's 5.9-foot-long robotic arm will unfold and take photos of the ground surrounding the lander. This will help mission scientists determine where its will place instruments.This whole unpacking process as InSight settles into its new home will take about two to three months as the instruments begin functioning and sending back data.The suite of geophysical instruments will take measurements of Mars' internal activity like seismology and the wobble as the sun and its moons tug on the planet.These instruments include the Seismic Experiment for Interior Structures to investigate what causes the seismic waves on Mars, the Heat Flow and Physical Properties Package to burrow beneath the surface and determine heat flowing out of the planet and the Rotation and Interior Structure Experiment to use radios to study the planet's core.InSight will be able to measure quakes that happen anywhere on the planet. And it's capable of hammering a probe into the surface.This is why the information InSight sends back about its landing site is crucial. Creating a 3D model of the surface will help engineers understand where to place instruments and hammer in the probe, called the Mars mole HP3 by those who built it."An ideal location for our Mars mole would be one that is as sandy as possible and does not contain any rocks," HP3 operations manager Christian Krause said.Tilman Spohn, principal investigator of the HP3 experiment, said, "our plan is to use these measurements to determine the temperature of Mars' interior and to characterize the current geological activity beneath its crust. In addition, we want to find out how the interior of Mars developed, whether it still possesses a hot molten core and what makes Earth so special by comparison."The first science data isn't expected until March, but InSight will be sharing snapshots of Mars along the way. And InSight's magnetometer and weather sensors are taking readings of the landing site, Elysium Planitia -- "the biggest parking lot on Mars." It's along the Martian equator, bright and warm enough to power the lander's solar array year-round.The information InSight will gather about Mars applies to more than just the Red Planet. It will expand the understanding of rocky planets in general."This has important implications beyond just these two neighbors [Mars and Earth], as we are currently discovering thousands of exoplanets around other stars, some of which may be quite similar to Earth or Mars in terms of size, location and composition," said Jack Singal, a physics professor at the University of Richmond and a former NASA astrophysics researcher. 4251

O, The Oprah Magazine is ending its regular monthly print editions with the December 2020 issue after 20 years of publication. Hearst says the brand is not going away but will become more “more digitally-centric,” with “some form of print." Oprah Winfrey launched O with Hearst in 2000 and today is the editorial director. It is among the country's most recognizable magazines. Hearst declined to answer why they were dropping the regular print edition, saying only it was a “natural next step." Magazines are trying to grow their digital properties as print advertising shrinks and people spend more time online.Oprah recently announced a partnership with AppleTV to begin a show on their platform starting on July 30. 727

OAKLAND, Calif. (AP) — Facebook has banned an extremist anti-government network loosely associated with the broader “boogaloo” movement, a slang term that supporters use to refer to a second Civil War or a collapse of civilization.But the platform didn’t try to name the group, underscoring the difficulty of grappling with an amorphous network linked to a string of domestic terror plots that appears to obfuscate its existence.Facebook designated the movement as a dangerous organization similar to the Islamic State group and white supremacists, both of which it already bans.Facebook says it is removing groups, accounts and pages when they have a “clear connection to violence or a credible threat to public safety.” The company says it has removed 220 Facebook accounts, 95 Instagram accounts and 106 groups that comprise the “US-based anti-government network.”Additionally, Facebook says it has removed 400 groups and over 100 other pages for violating its “Dangerous Individuals and Organizations” policy, because they hosted similar content as the violent network.“So long as violent movements operate in the physical world, they will seek to exploit digital platforms,” wrote Facebook. “We are stepping up our efforts against this network and know there is still more to do.” 1293

One Powerball ticket sold in Pennsylvania has matched all six numbers.The single winning ticket is worth 6.7 million -- the eighth-largest pot in the game's history, officials said in a statement. The winning numbers for the jackpot Saturday were: 22-57-59-60-66, and Powerball 7."The ticket matched all five white balls and the Powerball to win the jackpot worth an estimated 6.7 million; 3.9 million cash value," Powerball said.The odds of winning Powerball are 1 in 292.2 million.Three other tickets -- sold in California, Missouri and Texas -- matched all five white balls in the drawing.The ticket sold in Texas won a million prize because it included a Power Play option, it said. 706

On Monday, the US House voted in favor of a 0 billion stimulus package that includes funds for the travel industry. Early in the pandemic, airlines were able to retain many employees during the spring in summer with assistance from the federal government as air travel has been cut by over 50% since March. That funding ran out on September 30.The stimulus provides billion through the Payroll Support Program. The program will help airlines pay workers and provide benefits for industry workers through the end of March. The funds also will help airlines transport coronavirus vaccines.In a letter to employees, United Airlines leaders said that its prepared to return thousands of employees who were furloughed in September. Those employees will be brought back on a temporary basis, United Airlines said.“As you know, involuntary furloughs were always a last resort for us and we worked really hard over the summer – through cost-cutting, capital-raising, and partnering with our unions – to make the number of people who were ultimately impacted as small as possible,” said United CEO J. Scott Kerby and President Brett Hart in a joint letter. “Now, those employees who are eligible under the terms of the PSP extension can temporarily come back to United through March 2021.”Leaders from the Association of Flight Attendants said that Monday’s bill passage should have come months ago.“Aviation is safe when we fly with the spirit that ‘we’re all in this together.’ Our AFA Government Affairs activists never stopped fighting and were joined by thousands of new Flight Attendant activists who got involved in our union to make this possible,” said the Association of Flight Attendants President Sara Nelson. “While we are getting everyone back on payroll, connected to healthcare and help to the whole country, this is just a downpayment on what’s needed for recovery. We need everyone ready to fight forward.”Due to concerns over the spread of the virus, several airlines have eliminated the middle seat on flights. Other airlines are capping the number of passengers on board flights.In addition to these restrictions, international travel is largely restricted from the US.Amid the pandemic, carriers are attempting to regain confidence in travel. Airlines are strictly enforcing mask wearing on board flights, and have been promoting sanitation efforts to eliminate the coronavirus from spreading among passengers.“We hope you find comfort in the policies we’ve implemented to keep you safe, including blocking middle seats, using electrostatic spraying on surfaces in the airport and onboard between flights, and requiring masks. Wearing a mask is the No. 1 thing each of us can do to help control the spread of the virus and protect each other,” Delta CEO Ed Bastian wrote in a letter to customers. 2824

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