WASHINGTON (AP) — Homeland Security Secretary Kristi Noem, who heads the agency central to President Donald Trump’s mass ...

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This is the strongest evidence yet of a rocky planet beyond our solar system with an atmosphere. Astronomers using the James ...

Researchers using NASA's James Webb Space Telescope have detected the strongest evidence yet for an atmosphere on a rocky ...

Deadpool is one of Marvel's most famous characters right now, but there's still a whole lot to learn about the Merc With a ...

A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...

CAPE CANAVERAL, Fla. (AP) — NASA has lost contact with a spacecraft that has orbited Mars for more than a decade. Maven ...

Cosmic dawn galaxies seen by JWST reveal hidden clues about dark matter and keep rival theories about its true nature alive.

Earth's climate has swung between ice ages and warmer periods for millions of years, driven by subtle changes in our planet's ...

Uranus and Neptune may not be the icy worlds we’ve long imagined. A new Swiss-led study uses innovative hybrid modeling to ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

Revisiting old data from Voyager 2, scientists have worked out how a dense, shocked region of the solar wind could have ...