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Polaris Dawn, the first of the Polaris Program’s three human spaceflight missions, announced today the extensive suite of science and research experiments the crew and SpaceX will conduct throughout ...

A team of geologists and mineral physicists at Harvard University, the University of California, Argonne National Laboratory and the University of Chicago has found evidence via lab experiments that ...

Scientists have long known that Earth's core is mostly made of iron, but the density is not high enough for it to be pure iron, meaning lighter elements exist in the core, as well. In particular, it's ...

The reentry capsule for the Foton-M3 spacecraft, which has been in low-Earth orbit for the last 12 days, successfully landed this morning in an uninhabited area 150 km south of the town of Kustanay in ...

In Arizona, nature is diverse and dramatic. The state's Tonto Natural Bridge State Park is home to the world's largest natural travertine bridge, where visitors can hike and explore its unparalleled ...

Picture all of Earth’s oceans, which cover about 70% of the planet and are mostly made of hydrogen. Now multiply that by nine. That may be the amount of hydrogen in Earth’s core, possibly making it ...

(CNN) — Picture all of Earth’s oceans, which cover about 70% of the planet and are mostly made of hydrogen. Now multiply that by nine. That may be the amount of hydrogen in Earth’s core, possibly ...