New research suggests that many planets previously considered promising for life may, in fact, be far less hospitable. A ...

In the Venus case, the potential clue was a faint spectral line in radio data, not a photograph of organisms in the clouds. One account of the controversy quotes Greaves describing the discovery as a ...

Long before the hunt began to find Earth lookalikes around other stars, one planet in the solar system had already been named Earth's twin. With its similar size and mass, Venus measures very close to ...

The afternoon of 7 August 1996 isn’t a time that sticks in many people’s minds. But if things had worked out differently, it might have been etched into our collective memory. At 1.15pm, US President ...

We have no idea what kind of life may exist on other planets, so it’s hard to know what to look for. Proxima Kósmos imagines a very different kind of solar system that could harbor life-forms we haven ...