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

Exoplanets come up a lot these days, usually in headlines about distant stars, strange atmospheres, or the possibility of ...

Exoplanets are often discovered using the transit method (more than three-quarters of those discovered have been found this way.) The same transit technique can be used to study them, often revealing ...

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

Could the planet TRAPPIST-1 e, located in the habitable zone of its red dwarf star, host liquid water and perhaps even life?

When the first exoplanet was discovered in 1995, Sara Seager and Dave Charbonneau were graduate students at Harvard. Both were studying topics totally unrelated to planets orbiting distant stars. Yet ...

NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered an extraordinary planet that's roughly the size of Earth but is only one-tenth of our planet's age, with half of its surface likely ...

An international team of professional and amateur astronomers, using simple off-the-shelf equipment to trawl the skies for planets outside our solar system, has hauled in its first “catch.” The ...

Astronomers have discovered a relatively cool and small exoplanet orbiting a nearby star, with a “year” of several months. The find offers a rare opportunity to study planets and solar systems like ...

Astronomers have discovered an unusual Earth-sized exoplanet they believe has a hemisphere of molten lava, with its other hemisphere tidally locked in perpetual darkness. Co-authors and study leaders ...