The Los Angeles Times reports: "The Rim fire spread deeper into Yosemite National Park on Tuesday with flames racing unimpeded to the east even as firefighters shored up defenses for communities on the western edges of the blaze.

The fire was 20% contained by Tuesday evening, with almost all of the containment coming on the fire’s southwest edge. On the east, the fire has a relatively flat, clear path farther into Yosemite and the 3,700 firefighters battling the blaze have fewer options to control it. The blaze has destroyed 111 buildings, including 31 residences, and is now the seventh-largest fire in state history, having spread across 281 square miles. Officials consider about 4,500 homes north of the fire and two groves of giant sequoias and other historic landmarks still in danger.”

This natural-color satellite image was collected by the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Terra satellite on August 27, 2013. Actively burning areas, detected by MODIS’s thermal bands, are outlined in red.

Source: NASA