What planet is most like Earth? Reseachers have identified several exoplanets similar to our planet, but none that are an ...

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

Life may not get blasted off any of the known "super-Earth" worlds as readily as it can from our planet, scientists find. The discovery suggests that any intelligent aliens that develop on such ...

One of the most promising Earth-sized exoplanets may be far more barren than its early billing suggested, with new analyses pointing to a rocky world stripped of the protective gases that make a ...

Three decades ago, in 1995, humankind discovered the first planet beyond the borders of our solar system. It's called 51 Pegasi b, and it spins around its main-sequence star (meaning not unlike our ...

The Terra Hunting Experiment will track the wobbles of dozens of stars nightly for years in the most focused hunt yet for an Earth twin.

The Kepler-22b reveal flips the storyline of the series. What started as a story about Earth going through a bizarre ...

Pluribus imagines Kepler-22b as an ocean world that sends a gift to humanity through radio waves. In real life, no such ...