Our space-exploration ambitions have boldly taken humans to the moon ... the solar system. But could humans or spacecraft ...

Scientists studying data from the Alpha Centauri star system on Wednesday announced what they believe is a second Earth-like planet orbiting the star closest to the sun.The finding, announced via ...

Only the three-star Alpha Centauri star system, which is 4.1 light-years distant, is closer. In 2016, astronomers found a planet orbiting ... equivalent to the moon’s diameter across the sky ...

But some projects are designing ways to propel payloads to the nearest star system ... to-be-discovered materials and concepts, this idea could theoretically propel a probe to Alpha Centauri ...

Astronomers have discovered ... planets inside the orbit of Wolf 1069 b. Wolf 1069 b becomes the sixth-closest Earth-mass exoplanet to our solar system, the closest being ... [+] Proxima Centauri ...

one of which is so tantalizingly similar to our sun that many experts speculate that its solar system might contain habitable planets. But Alpha Centauri is about 4.3 light-years, or 25 trillion ...