In a discovery that has been years in the making, researchers have confirmed the existence of a rocky planet named Proxima b orbiting Proxima Centauri, the closest star to our sun, according to a ...

Astronomers have detected evidence of a third planet orbiting Proxima Centauri, our sun’s nearest stellar neighbor, at 25 trillion miles (40.2 trillion kilometers) away. A light-year ...

The funny thing about the discovery of Proxima b — the closest planet to our solar system, which is also rocky, Earth-size, and potentially habitable — is that nobody has actually seen it.

Astronomers caught the star Proxima Centauri unleashing a massive flare that raises serious doubts about life on its lone confirmed orbiting planet. Eric Mack has been a CNET contributor since 2011.

For the closest star, Proxima Centauri, we could detect life on an Earth-like world with only 10 hours of observation. For a Neptune-sized world, the ELT could capture planetary spectra in about ...