A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien astronomers could also be scanning Earth.

Gaia-4b is considered a super-Jupiter planet, a relatively cold gas giant, orbiting its star over 570 Earth-days. That star ...

The outer planet is the super-Earth HD 20794 d, and the green region in space is this solar system's habitable zone. An illustration of a habitable zone in a solar system. Credit: NASA The ...

Though scientists aren't sure how the lithosphere came to be divided into plates, certain aspects of Earth's geology keep the plate tectonic engine chugging along. For a planet to sustain plate ...

Computer simulations suggest that there is an undiscovered Earth-like planet lurking in the distant ... [+] Kuiper Belt, well past the orbit of Neptune (artistic illustration). There may be an ...

ANDES stands for ArmazoNes high Dispersion Echelle Spectrograph. AndES is a high-resolution instrument that can search for ...

Seismic imaging has revealed two colossal regions deep within Earth’s mantle that could reshape our understanding of the planet's composition and history. These continent-sized anomalies ...

Its inhabitants are the hot Jupiter (WASP-132b), a newly discovered inner super-Earth (WASP-132c) and an outer distant ice giant planet (WASP-132d). The discovery was made by a team of researchers ...