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The FBI has reached out to Sen. Richard Burr about his sale of stocks before the coronavirus caused markets to plummet. That's according to a person familiar with the matter who was not authorized to discuss it and spoke on condition of anonymity. The outreach suggests the Justice Department may be looking to determine whether Burr exploited advance information when he dumped as much as .7 million in stocks in the days before the coronavirus wreaked havoc on the economy. Burr has denied wrongdoing but has also requested an ethics review of the stock sales. 576

The moon is slowly shrinking over time, which is causing wrinkles in its crust and moonquakes, according to photos captured by NASA's Lunar Reconnaissance Orbiter.Unlike Earth, the moon doesn't have tectonic plates. Instead, as the moon's interior has cooled over the last several hundred million years, it has caused the surface to wrinkle as it shrinks. Unlike the flexible skin of a grape when it shrinks into a raisin, the moon's brittle crust breaks. This creates stair-step cliffs called thrust faults as part of the crust is pushed up and over another close part of the crust.There are now thousands of cliffs scattered across the moon's surface, averaging a few miles long and tens of yards high. The orbiter has taken photos of more than 3,500 of them since 2009. In 1972, Apollo 17 astronauts Eugene Cernan and Harrison Schmitt had to ascend one of these cliffs, the Lee-Lincoln fault scarp, by zig-zagging the lunar rover over it.Today the moon is 50 meters "skinnier" because of this process. And as it shrinks, the moon actively produces moonquakes along the faults. Researchers re-analyzed seismic data they had from the moon to compare with the images gathered by the orbiter.Data from the seismometers placed on the moon during the Apollo 11, 12, 14, 15 and 16 missions revealed 28 moonquakes recorded between 1969 and 1977. Researchers compared the location of the epicenters for those quakes with the orbiter imagery of the faults. At least eight of the quakes occurred due to activity along the faults. This rules out the possibility of asteroid impacts or rumblings from the moon's interior.This means that the Apollo seismometers recorded the moon shrinking, the researchers said. The study of Apollo seismic data and analysis of more than 12,000 of the orbiter's photos were published Monday in the journal 1841

The 2019 Nobel Prize for Medicine has been jointly awarded to William Kaelin Jr., Sir Peter Ratcliffe and Gregg Semenza for their pioneering research into how human cells respond to changing oxygen levels.Announcing the prize at the Karolinska Institute in Stockholm on Monday, the Nobel committee said that the trio's discoveries have paved the way for "promising new strategies to fight anaemia, cancer and many other diseases."The 2019 medicine laureates, the committee added, have identified molecular machinery that regulates the activity of genes in response to varying levels of oxygen.The importance of oxygen has long been established, the committee explained, but how cells adapt to changes in its levels remained unknown.Randall Johnson, prize committee member, described the trio's work as a "textbook discovery.""This is something basic biology students will be learning about when they study, at aged 12 or 13, or younger, biology and learn the fundamental ways cells work. This is a basic aspect of how a cell works and, from that standpoint alone, it's a very exciting thing."The winnersNew York-born Kaelin established his own research laboratory at the Dana-Farber Cancer Institute in Boston and became a full professor at Harvard Medical School in 2002.Semenza, also born in New York, became a full-time professor at Johns Hopkins University in 1999 and since 2003 has been the Director of the Vascular Research Program at the Johns Hopkins Institute for Cell Engineering.Ratcliffe, who was born in Lancashire, England, studied medicine at Cambridge University and established an independent research group at Oxford University, becoming a full professor in 1996. 1694

The Jersey City Fire Department honored Friday a man who spent more than five decades helping the on-duty firefighters after being saved from a fire at 10 years old.Gregory Greene, 65, was rescued from a fire at his home as a 10-year-old boy. Afterward, his father took him by the firehouse for Engine 20, Ladder 5, the unit that responded to his house fire. He then spent nearly every day helping with chores and visiting the firefighters at the firehouse, 470

The House has voted to send two articles of impeachment against President Donald Trump to the Senate. Pelosi signed off on sending the articles across the U.S. Capitol to the Senate for only the third such trial in American history. Trump complained anew of a “hoax,” even as new details emerged about his political efforts in Ukraine. The move to the Senate takes the case from Pelosi's Democratic-majority House to the Republican-controlled Senate, where the president's team is mounting a defense aiming for swift acquittal.Senate Majority Leader Mitch McConnell said that the Senate will accept the articles at noon Thursday. At 2 p.m., Chief Justice John Roberts will be seated in the Senate. McConnell said the formal trial will begin on Tuesday. 764