Science

A barbed-wire fence encircles the Highlands Acid Pit, flooded by the nearby San Jacinto River in Highlands, Texas, on Aug. 31, 2017, as a result of Hurricane Harvey. Floodwaters engulfed at least five highly contaminated toxic waste sites near Houston, raising concerns that the pollution may have spread. (AP Photo / Jason Dearen)

Piper Truza watches a phase of a partial solar eclipse visible in Detroit, Monday, Aug. 21, 2017. Millions of Americans gazed in wonder through telescopes, cameras and disposable protective glasses Monday as the moon blotted out the sun in the first full-blown solar eclipse to sweep the U.S. from coast to coast in nearly a century. (AP Photo/Paul Sancya)

Captured in a still image from her 360 video, Middle East Photo Editor Maya Alleruzzo, far left, covers the evacuation of civilians from Mosul, conducted by Maj. Ihab Jalil al-Aboudi, an Iraqi special forces commander, center, in May 2017. (Image from video/Maya Alleruzo)

Crews work around damaged tanker cars on May 1, 2014, along the tracks where several CSX tanker cars carrying crude oil derailed and caught fire along the James River near downtown Lynchburg, Va. Inspectors have found almost 24,000 safety defects over a two-year period along United States railroad routes used to ship volatile crude oil. (AP Photo/Steve Helber)

A drain pipe sticks out of a coal ash retention pond at Dominion's Possum Point Power Station in Dumfries, Va., June 26, 2015. The company was moving coal ash from several ponds to one lined pond. (AP Photo/Steve Helber)

Dr. Erin Kimmerle, center, works with investigators as they examine the remains of an unidentified 1985 female homicide victim after the body was exhumed from a unmarked grave in Tampa, Fla., Sept. 15, 2016. Kimmerle knows locating the killer is a long shot. But if she throws enough science at the case, she feels she may identify the body and find relatives. (AP Photo/Chris O'Meara)