Astronomers have discovered an exoplanet that might have favorable conditions for liquid water. This planet, HD 20794 d, ...

It is located in a star system less than 20 light-years away, making it one of the closest candidates for further research.

Earth" planet that may have conditions suitable for life, according to the University of Oxford. The exoplanet—a planet ...

Earth's unusual orbit through hot and cold conditions tests the limits of tolerability for any known lifeforms.

NASA’s two stuck astronauts took their first spacewalk together Thursday, exiting the International Space Station almost ...

NASA's two stuck astronauts take their first spacewalk together since arriving at the space station last year.

Seager, 47, is an astrophysicist. Her specialty is exoplanets, namely all the planets in the universe except the ones you already know about revolving around our sun. On a blackboard, she has ...