A look at the science behind Elon Musk's goal of a million-person city on Mars, and why planetary scientists say terraforming ...

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

China's state-owned space company recovered its first orbital rocket booster after launch.

China's Long March rocket has now matched Elon Musk's SpaceX and Jeff Bezos' Blue Origin in returning a first-stage booster.

The experimental "net capture" system could make future launches cheaper as China's space program closes the gap.

Sam Altman took a swipe at Elon Musk, saying his “obsession” proves GPT-5.6 Sol is the world's best AI model as OpenAI ...

Does anywhere in the country better represent this era of the American experiment than a self-governing tech-company town ...

Elon Musk revived his feud with Sam Altman, accusing him of stealing Apple's phone tech as the two tech leaders exchanged ...

Elon Musk has laid out another far-reaching vision for SpaceX, saying the company could return humans to the Moon within the ...

What is the Kardashev Scale? Elon Musk sees it as a vision for humanity's future, but scientists say the reality is more ...

Environmental groups are urging federal regulators to review risks of satellite-based data centers proposed by Elon Musk and ...

China achieved a significant aerospace milestone by successfully landing its Long March rocket's first stage. This historic ...