Science

FILE - In this Dec. 6, 2016 file photo, Revolutionary Armed Forces of Colombia, FARC, rebel commander and peace negotiator Seuxis Hernandez, alias Jesus Santrich, flashes a victory hand signal at the end of a press conference in Bogota, Colombia. The Special Peace Tribunal investigating crimes during the country’s long civil conflict announced Wednesday, May 15, 2019, that Hernandez, should not be extradited to the United States on a drug warrant. (AP Photo/Fernando Vergara, File)

In this undated photo provided by Joanne Atkins-Ingram, is of her and her son Braeden Bradforth. A Kansas community college, Garden City Community College, has agreed under mounting pressure to an independent investigation into the heatstroke death of football player Bradforth last year who collapsed after the first day of conditioning practice. Trustees for the college voted Tuesday evening to authorize the outside probe into the death of the 19-year-old Bradforth of Neptune, New Jersey. He was found unconscious outside his dorm room on Aug. 1 after the practice and died later that night at a hospital. (Courtesy Joanne Atkins-Ingram via AP)

FILE - In this May 3, 2017, file photo Education Secretary Betsy DeVos speaks during a school choice event in the Roosevelt Room of the White House in Washington. Education advocates say a Trump administration plan to use federal Pell Grant money to fund space exploration would jeopardize aid for future college students and could trigger a budgeting crisis within a few years. (AP Photo/Evan Vucci, File)

Gov. Gavin Newsom gestures towards boxes of tampons and diapers after proposing to eliminate from the state sales tax on such products in his upcoming state budget during a news conference, Tuesday, May 7, 2019, in Sacramento, Calif. The tax cuts are part of a "parents' agenda" Newsom is pursuing, and he plans to unveil a revised state budget later this week. Newsom was, accompanied by his wife, first partner Jennifer Siebel Newsom, center, Southern California Democratic Assemblywoman Monique Limon, right, and others.(AP Photo/Rich Pedroncelli)

Microsoft CEO Satya Nadella delivers the keynote address at Build, the company's annual conference for software developers Monday, May 6, 2019, in Seattle. (AP Photo/Elaine Thompson)

In this Friday, April 5, 2019 photo, Leo Dabelstein, left, and Kiran Bleakney eat lunch in the cafeteria at Burlington High School, in Burlington, Vt. The school's food service provider is preparing to comply with a Trump administration decision to roll back a rule that required only whole-grain rich foods for school meals. Burlington officials said they don't plan on abandoning whole-grain foods, but it gives them flexibility. (AP Photo/Wilson Ring)

Joergen Ree Wiig tries to reach the harness attached to a beluga whale before the Norwegian fishermen were able to removed the tight harness, off the northern Norwegian coast Friday, April 26, 2019. The harness strap which features a mount for an action camera, says "Equipment St. Petersburg" which has prompted speculation that the animal may have escaped from a Russian military facility. (Joergen Ree Wiig/Norwegian Direcorate of Fisheries Sea Surveillance Unit via AP)

A woman leaves flowers on a growing memorial across the street from the Chabad of Poway synagogue in Poway, Calif., on Monday, April 29, 2019. A gunman opened fire on Saturday, April 27 as dozens of people were worshipping exactly six months after a mass shooting in a Pittsburgh synagogue. (AP Photo/Greg Bull)

FILE - In this file photo taken Feb. 21, 2019, seventh grade students from Grace Academy in Hartford, Conn., work together on a robot using plans on a computer at the Connecticut Science Center in Hartford. Though less likely to study in a formal technology or engineering course, America's girls are showing more mastery of those subjects than their boy classmates, according to newly released national education data made public Tuesday, April 30, 2019. (Jim Michaud/Journal Inquirer via AP, File)