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Roger Tomlinson, the man widely regarded as the father of GIS — Geographic Information Systems — has died at age 80. Tomlinson's 1960s innovation, using computer software to overlay different types of maps on top of one another, revolutionized industry and government.

For centuries, people thought sap had to flow down a tree's body through a spigot at the bottom. But researchers have discovered that sap can flow upward, too, which allows syrup production from much younger trees, and could even turn maple syrup into a row crop.

Would a salad arranged like an abstract painting be more enjoyable and valuable to diners than a typical salad presentation? Psychologists tried to find out.

Doctors and patients are trying to balance the need for pain relief and the potential for trouble. In an NPR poll, addiction and side effects were the top concerns.

On the eve of Omarosa Manigault Newman's book release, Trump tweeted scathing criticism of his former top-level aide.

The storm system has prompted tornado and flash flood warnings, and officials are keeping a close watch on New Orleans' levee system and infrastructure, which failed during Hurricane Katrina in 2005.

Top Democrats in the state are framing the change as a way to stand up to President Trump and allow for state prosecutions of those he pardons for federal crimes.

See which 2020 presidential candidate has raised the most money, who has spent the most, where a candidate's funding comes from — and how the Democrats stack up against President Trump.

At least three people died and hundreds of structures were damaged or destroyed in Tennessee's Sevier County after a wildfire moved through populated areas overnight.

The California Democrat got 134 votes to Ohio Rep. Tim Ryan's 63, but it was the most serious challenge to her leadership she has faced since taking over the top slot in the House in 2003.