“We have four systems of sibling planets — two planets around the same ... reasoning could explain why little material would have been left to form a super-Earth in the Sun’s habitable ...

The newfound exoplanet, named SPECULOOS-3 b, is a rocky planet roughly 55 light-years from Earth. It zips around its host star ... 500-year-old artifacts from a little-known culture ...

Astronomers have spotted four smaller-than-Earth exoplanets ... the planets are unlikely to harbor life since they're not in Barnard Star's habitable zone, the area around a star where ...

None of the planets in perfect synchrony lies within the star’s so-called habitable zone, which means little ... around it. The six found so far are roughly two to three times the size of Earth ...

Dr. van Belle likened the configuration to a vinyl record: The sun is in the center, and the grooves are the orbits of the planets around it. Our point of view from Earth, then, is along one of ...