On a farm in Oregon, they try to figure out what kinds of trees and shrubs produce the most flying embers.
The president says he'd like to increase spending to about 2% of the country's GDP — closer to what it was in the 1960s.
While those researching COVID-19 remained hard at work, others left their labs behind or improvised new methods.
When the pandemic hit, scientists halted experiments and euthanized research animals. Now they're trying to pick up where they left off.