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Exoplanet Atmosphere

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NASA’s Roman Mission Preps to Unveil New Populations of Faraway Worlds

Exoplanets Need to Be Prepared for Extreme Space Weather, Chandra Finds

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Studies based on observations from NASA's Hubble Space Telescope show that hot Jupiters, exoplanets around the same size as Jupiter that orbit very closely to their stars, often have cloud or haze layers in their atmospheres.

The super-Earth exoplanet 55 Cancri e, depicted with its star in this artist's concept, likely has an atmosphere thicker than Earth's but with ingredients that could be similar to those of Earth's atmosphere.

This artist's illustration of the exoplanet LHS 3844b, shows the planet's surface may be covered mostly in dark lava rock, with no apparent atmosphere, according to observations by NASA's Spitzer Space Telescope.

A transmission spectrum made from a single observation using Webb’s Near-Infrared Imager and Slitless Spectrograph (NIRISS) reveals atmospheric characteristics of the hot gas giant exoplanet WASP-96 b.

WFIRST, the Wide Field Infrared Survey Telescope, is shown here in an artist's rendering. It will carry a Wide Field Instrument to provide astronomers with Hubble-quality images covering large swaths of the sky.

A NASA-led team of scientists determined that WASP-18b, a 'hot Jupiter' located 325 light-years from Earth, has a stratosphere that's loaded with carbon monoxide, but has no signs of water.

The filters on NASA's Roman Space Telescope Coronagraph Instrument's Color Filter Assembly each block all but a specific wavelength of light. Many of the filters appear dark in this photo because they are transparent only to infrared light.

This graphic shows a test of the Roman Coronagraph Instrument. At left, starlight leaks into the field of view when fixed components are used. The middle and right images show more starlight being removed as moveable components are engaged.

This illustration based on computer modeling and data from NASA's Kepler Space Telescope, represents how hot Jupiters of different temperatures and different cloud compositions might appear while flying over the dayside of these planets on a spaceship.

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