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Red Dwarfs

Discovery Alert: An Earth-sized World and Its Ultra-cool Star
4 min read

Our galaxy is a jewel box of red stars. More than 70% of the stars in the Milky Way are…

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Artist’s Concept of AU Mic b
1 min read

This artist's illustration shows a planet (dark silhouette) passing in front of the red dwarf star AU Microscopii. The planet…

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Concentric Gas-and-Dust Disks Around Star TW Hydrae (Artist’s Concept)
1 min read

This artist's concept is based on Hubble Space Telescope images of gas-and-dust disks around the young star TW Hydrae. Hubble…

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TW Hydrae Disk
1 min read

Comparison images from the Hubble Space Telescope, taken several years apart, have uncovered two eerie shadows moving counterclockwise across a…

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Hubble Follows Shadow Play Around Planet-Forming Disk
5 min read

The young star TW Hydrae is playing “shadow puppets” with scientists observing it with NASA’s Hubble Space Telescope. In 2017,…

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Types
7 min read

Types of Stars The universe’s stars range in brightness, size, color, and behavior. Some types change into others very quickly,…

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Red Dwarf Flare Star (Artist’s Illustration)
1 min read

Artist's Illustration of a Young Red Dwarf Stripping Away a Planet's Atmosphere Violent outbursts of seething gas from young red…

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Superflares From Young Dwarf Stars Imperil Planets
4 min read

The word “HAZMAT” describes substances that pose a risk to the environment, or even to life itself. Imagine the term…

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Mini-Flares Potentially Jeopardize Habitability of Planets Circling Red Dwarf Stars
4 min read

Cool dwarf stars are hot targets for exoplanet hunting right now. The discoveries of planets in the habitable zones of…

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