It is the closest single star to the Sun and the fourth closest star ... The observational data in this work currently excludes planets larger than 57 percent the mass of Earth within Barnard's ...

U.S. team of researchers detected signs of two chemicals in the planet's atmosphere long considered to be "biosignatures" indicating extraterrestrial life.

The Webb telescope has spotted exoplanets circling white dwarf stars, proving that planets can survive their star’s violent ...

Planets larger than Neptune are thought to be relatively ... His discovery showed that the sun was at the center of the solar system, not the Earth.

Meet the author: Dr. Phil Plait is an astronomer, author, and science communicator with a PhD in astronomy at the University ...

They also orbit near their stars, in many cases closer than Mercury is to the Sun. Our solar system ... Jupiter" systems for those that have planets larger than Jupiter in the inner regions ...