Scientists reveal how brain cells in Alzheimer's go awry, lose their identity

Solar ‘campfires’ may heat the Sun’s atmosphere to scorching temperatures

As Voyagers 1 and 2 continue their epic journeys through interstellar space, they're resolving past controversies and even helping to spark a new one: the true shape of the sun's heliosphere.

NASA’s New ‘Voyager’: 7 Things To Know About The 50-Year ‘Interstellar Probe’ Mission To Burst Our Cosmic Bubble