Barreling through the universe with incredible power and speed, galactic cosmic rays are a major source of radiation in space ...

A spacecraft could plunge into Earth’s atmosphere as soon as Tuesday. While most of the probe will likely burn up during reentry, a few components are expected to survive.

For years, physicists treated an Earth-to-space quantum uplink as a beautiful idea that nature simply would not allow. Now a set of detailed models and experiments suggests that the same fragile ...

In a new book, NASA astrobiologist Caleb Scharf says the fate of life on Earth may hinge on leaving our planet behind The multibillion-year story of life on Earth is defined by a handful of epochal ...

There are about 15,000 satellites orbiting Earth. Most of them, like the International Space Station and the Hubble Telescope, reside in low Earth orbit, or LEO, which tops out at about 1,200 miles (2 ...

Van Allen Probe A was originally designed for just a two-year mission ...

D. JAMES BAKER, Co-Chair, is the director of the Global Carbon Measurement Program of the William J. Clinton Foundation, where he currently focuses on the use of forestry programs to reduce carbon ...

NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of ...

A recent SpaceNews opinion article argued that it is time to “take astronomy off Earth.” The suggestion is straightforward: If satellite constellations and commercial space activity threaten ...