Elon Musk was asked what keeps him up at night. To this, he warned about an "existential" issue that could cause civilisation ...

Elon Musk envisions a successful and self-sustaining Martian city, capable of thriving independently of Earth. To achieve ...

Suppose humanity was faced with an extinction-level event. Not just high odds, but certain-sure. A nearby supernova will ...

Fossil fuels powered the industrial revolution. Would aliens need a similar power source to jump-start a technical revolution ...