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Evolving Earth

Our planet passed through stages to become a habitable world.

Infographic: Chemical Reactions Caused by Starlight

Analysis of the exoplanet WASP-39b identified the sulfur dioxide. Its presence can only be explained by photocemistry.

Video: Lifting the Veil on Exoplanet Clouds

NASA's James Webb Space Telescope will reveal secrets of clouds in the atmospheres of exoplanets – planets beyond our solar…

El Telescopio Espacial TESS

TESS, el "Transiting Exoplanet Survey Satellite", se lanzó en 2018 para descubrir planetas pequeños que orbitan estrellas brillantes en todo…

TESS Space Telescope Poster

NASA’s latest exoplanet hunter, launched in 2018, has also made astounding astronomical discoveries with its almost full-sky view.

Astrometry

The orbit of a planet can cause a star to wobble around in space in relation to nearby stars in…

Transit Method Single Planet

When a planet passes directly between a star and its observer, it dims the star's light by a measurable amount.…

Transit Method Different Planet Sizes

When a planet passes directly between a star and its observer, it dims the star's light by a measurable amount.…

Direct Imaging

Astronomers can take pictures of exoplanets by removing the overwhelming glare of the stars they orbit.

Radial Velocity

Orbiting planets cause stars to wobble in space, changing the color of the light astronomers observe.

Exoplanet light curve

An exoplanet passes in front of its parent star, then passes behind – creating a “light curve” that can be…

Marble in the Sky: the Hunt for Another Earth

In this artist's concept, a distant, life-bearing world orbits two stars instead of one, seen from the surface in a…