From space colonies to imperial dreams, Donald Trump and Elon Musk offer a masterclass in misguided policy ambition.

The deadly conflict between Israel and Iran has entered a fourth day, with both sides firing waves of missiles. Follow for ...

Climate change threatens Cape Town with rising seas and flooding risks.Sea level rise could displace millions and submerge ...

So why are we still surprised when the tide of blood reaches our own shores? Some personal reflections on Marco Rubio and me—and the roots of Trump’s imperial ambitions.

With the future of the world's oceans hanging in the balance, global leaders, scientists, and activists gathered in the French Riviera city of Nice this week for the historic UN Ocean Conference, ...

As Trump vows to "get Greenland," direct flights from the U.S. are starting − on his birthday. Who will visit? What kind of ...