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NASA's planet-hunter TESS makes first discoveries

By Ashley Strickland, CNN

Updated 0253 GMT (1053 HKT) January 9, 2019

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This is an artist's concept of the Europa Clipper spacecraft. The design is changing as the spacecraft is developed.
Photos: Cool unmanned space missions
This is an artist's concept of the Europa Clipper spacecraft. The design is changing as the spacecraft is developed.
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SPHEREx, the Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer, will study the beginning and evolution of the universe and determine how common the ingredients for life are within the planetary systems found in our galaxy, the Milky Way. It is targeted to launch in 2023.
Photos: Cool unmanned space missions
SPHEREx, the Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer, will study the beginning and evolution of the universe and determine how common the ingredients for life are within the planetary systems found in our galaxy, the Milky Way. It is targeted to launch in 2023.
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NASA's Transiting Exoplanet Survey Satellite launched in April and is already identifying exoplanets orbiting the brightest stars just outside our solar system. In the first three months since it began surveying the sky in July, it has found three exoplanets, with the promise of many more ahead.
Photos: Cool unmanned space missions
NASA's Transiting Exoplanet Survey Satellite launched in April and is already identifying exoplanets orbiting the brightest stars just outside our solar system. In the first three months since it began surveying the sky in July, it has found three exoplanets, with the promise of many more ahead.
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This illustration shows the position of NASA's Voyager 1 and Voyager 2 probes outside the heliosphere, a protective bubble created by the sun that extends well past the orbit of Pluto.
Photos: Cool unmanned space missions
This illustration shows the position of NASA's Voyager 1 and Voyager 2 probes outside the heliosphere, a protective bubble created by the sun that extends well past the orbit of Pluto.
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Bright swaths of red in the upper atmosphere, known as airglow, can be seen in this image from the International Space Station. NASA's ICON mission will observe how interactions between terrestrial weather and a layer of charged particles called the ionosphere create the colorful glow.
Photos: Cool unmanned space missions
Bright swaths of red in the upper atmosphere, known as airglow, can be seen in this image from the International Space Station. NASA's ICON mission will observe how interactions between terrestrial weather and a layer of charged particles called the ionosphere create the colorful glow.
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NASA's Global-scale Observations of the Limb and Disk mission -- known as the GOLD mission -- will examine the response of the upper atmosphere to force from the sun, the magnetosphere and the lower atmosphere.
Photos: Cool unmanned space missions
NASA's Global-scale Observations of the Limb and Disk mission -- known as the GOLD mission -- will examine the response of the upper atmosphere to force from the sun, the magnetosphere and the lower atmosphere.
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