Indigenous peoples burned their land for thousands of years to prevent much larger fires. It might be an important part of future wildfire prevention. Plus, a new film explores the extraordinary life of neurologist and writer Oliver Sacks. And some birds use the sound their feathers make as a communication tool.
As recovered patients return home, medical professionals are learning about lingering health effects from serious cases of COVID-19. Plus, new pictures of our Sun’s surface remind us just how little we know about it. And new research looks at why we became the main course for some mosquitoes.