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

Astronomers have revised the mass of nearby exoplanet GJ 3378 b, recasting it as a rocky super‑Earth in the habitable zone ...

SpaceX CEO Elon Musk believes that "SpaceX will be worth more than the rest of Earth if we accomplish our goals." ...

An international team of scientists has measured the extraordinary amount of space dust that reaches Earth’s surface every ...

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

A planet with one side permanently roasting and the other frozen in endless darkness might still have a chance of supporting life. Researchers found that heat inside a tidally locked exoplanet could ...

For thousands of years, humanity has looked up at the stars asking the same question. Are we alone? Then one day, it finally ...

The search for life beyond Earth has always been full of surprises. Strange radio signals have sparked excitement. Odd gases on distant worlds have raised questions. Even ordinary objects have been ...

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Astronomers have identified GJ 3378b, a super-Earth located 25 light-years away, in the habitable zone of its star, raising ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Before his death, Stephen Hawking consistently warned humanity against contacting aliens. As interest in UFOs and little ...