Assuming that alien life will be similar to what evolved here on Earth could severely limit the potential for big discoveries, researchers said.
An alien planet that orbits a star other than our sun is referred to as an "exoplanet." Learn more about the types of alien planets, including exoplanets and extrasolar planets, and get the latest news.
TESS team members recently provided insight and updates about the mission's first year of science operations.
Moons of "hot Jupiter" alien worlds may detach from their parent planets and begin orbiting stars on their own.
Frozen alien worlds might be capable of supporting a greater diversity and complexity of life than previously thought, a new study suggests.
The discovery of an exoplanet orbiting a young star could provide new information on planet formation.
NASA's newest planet hunter has bagged three more trophies, two of which may help scientists better understand how worlds form and evolve.
A team of astronomers calculated the strength of the magnetic fields of four hot Jupiter exoplanets.
Astronomers think they've spotted a planet with three suns on its horizon — but that still isn't the most interesting thing about the world's skies.
NASA's TESS mission was designed to hunt alien planets, but it's done more than that in its first year at work, as a new NASA video highlights.
Earth's color palette has changed considerably over time, and that fact could help astronomers better understand the evolution of other life-hosting planets, a new study suggests.
Black holes are engines of destruction on a cosmic scale, but they may also be the bringers of life.
A research team discovered two Earth-like planets in our cosmic backyard, and they reside in the perfect zone for water to form on their presumably rocky surfaces.
Intricate ring structures in the outer portion of the disk of dust and gas that surrounds the young star HD 169142 were likely carved by a newborn planet on the move.