For advisories, the State Department considers multiple factors, such as crime, terrorism and access to health services.

Catastrophic risks are increasing, cooperation is declining, and swift action is needed from global leaders to correct course ...

Wars, climate change, disruptive technologies and the rise of autocracy over the past year prompted scientists to set the ...

A new high-resolution map of distant galaxies may help scientists understand a mysterious invisible substance that helps hold the universe ...

Scientists have created the sharpest map yet of dark matter, offering new insight into the invisible force that holds galaxies together.

Using data from the James Webb Space Telescope, the world's biggest dark matter map has been released by NASA and shows an ...