Scientists Discover Layer of Liquified Molten Rock in Earth's Mantle
Scientists have discovered a layer of liquified molten rock in Earth's mantle that may be responsible for the sliding motions of the planet's massive tectonic plates.
Before Dinosaurs' Era, Volcanic Eruptions Triggered Mass Extinction
More than 200 million years ago, a massive extinction decimated 76 percent of marine and terrestrial species, marking the end of the Triassic period and the onset of the Jurassic.
NASA Begins New Season of Arctic Ice Science Flights
NASA's Operation IceBridge scientists have begun another season of research activity over Arctic ice sheets and sea ice with the first of a series of science flights from Greenland completed on Wednesday.
Voyager 1 Has Entered a New Region of Space, Sudden Changes in Cosmic Rays Indicate
WASHINGTON – Thirty-five years after its launch, Voyager 1 appears to have travelled beyond the influence of the Sun and exited the heliosphere, according to a new study appearing online today.