What's the best way to reveal what an exoplanet is made of? Wait for it to get gravitationally shredded and engulfed by its ...

The US wants to put a nuclear reactor on the moon by 2030, five years ahead of Russia and China’s plans to do the same.

Lanteris is already building satellites for the Pentagon’s Space Development Agency to detect and track ballistic and hypersonic missiles. This places Lanteris, and soon Intuitive Machines, squarely ...

Millions of years before blue oceans and wandering continents, the Earth in its early days was a molten, tumultuous planet — a roiling mixture of rock and metal condensing within the nascent solar ...

Ancient supercontinent Nuna's breakup around 1.5 billion years ago set off a chain of events that made Earth more habitable, ...

When an interstellar object cruises through our solar system, scientists naturally scrutinise its nature. But for one of these visitors, the unusual comet 3I/ATLAS, Harvard physicist Avi Loeb has ...