WASHINGTON (AP) — Donald Trump has promised sweeping action in a second administration.

The messaging pivot is part of a Trump playbook many in his party have adopted: preemptively defy a loss with claims of ...

Tiny grains from asteroid Ryugu are revealing clues to the magnetic forces that shaped the far reaches of the solar system over 4.6 billion years ago. The findings suggest the distal solar system ...

Elon Musk aims to make life multiplanetary, but Jeff Bezos believes we should be building massive cylindrical space stations.

Written by the former chief historian of NASA, the book examines the evolution of our cosmic understanding—from early civilizations to the present day ...

Astronomers are investigating the possibility of a hidden ninth planet beyond Neptune, which could explain unusual orbital patterns in the Kuiper Belt.

In 1977, NASA launched Voyager 1 and 2: a pair of spacecraft tasked with touring Jupiter, Saturn, Uranus and Neptune by ...

Amy Simon of NASA’s Goddard Space Flight Center in Greenbelt, Maryland, lead author of the paper published recently in The ...

Scientists have confirmed that one of Earth's most remarkable living beings—a massive forest of quaking aspen trees in Utah ...

Research indicates that the James Webb Space Telescope could help confirm the presence of life-supporting atmospheres on exoplanets in the "Goldilocks zone," enhancing the likelihood of discovering ...

Billions of years ago, Earth was home to extreme environments, including intense UV radiation, frequent volcanic eruptions, and very high concentrations of carbon dioxide in the atmosphere. Yet, under ...

A new study suggests that the planet’s icy interior and liquid ocean could be insulated with a three-to-six-mile-thick layer ...