NASA's airborne observatory captures views unmatched by ground telescopes.
Recent finds add to a growing list of nearby Earth-like planets.
Beetle predators consider nutrition when choosing their prey.
Twin satellites investigate the lunar surface and structure.
In the worldwide wildlife trade, public health risks run high.
Scientists observe dolphins and whales at play in Hawaiian waters.
Curiosity rover launched on November 26, beginning its long journey to Mars.
Conservation efforts lead scarlet macaws toward a comeback in Guatemala.
As the seasons come and go, plant life and carbon change on Earth.
Ancient fossils suggest modern humans populated Europe earlier than once thought.