Superflares from young red dwarf stars imperil planets

The word "HAZMAT" describes substances that pose a risk to the environment, or even to life itself. Imagine the term being applied to entire planets, where violent flares from the host star may make worlds uninhabitable by ...

Astronomers catch red dwarf star in a superflare outburst

New observations by two Arizona State University astronomers using the Hubble Space Telescope have caught a red dwarf star in a violent outburst, or superflare. The blast of radiation was more powerful than any such outburst ...

Researchers discover thin gap on stellar family portrait

A thin gap has been discovered on the Hertzsprung-Russell Diagram (HRD), the most fundamental of all maps in stellar astronomy, a finding that provides new information about the interior structures of low mass stars in the ...

The longest period transiting planet candidate from K2

To discover and confirm the presence of a planet around stars other than the sun, astronomers wait until it has completed three orbits. However, this very effective technique has its drawbacks since it cannot confirm the ...

Rocky planet neighbor looks familiar, but is not Earth's twin

Last autumn, the world was excited by the discovery of an exoplanet called Ross 128 b, which is just 11 light years away from Earth. New work from a team led by Diogo Souto of Brazil's Observatório Nacional and including ...

New IR instrument searches for habitable planets

A new instrument to search for potentially habitable/inhabited planets has started operation at the Subaru Telescope. This instrument, IRD (InfraRed Doppler), will look for habitable planets around red dwarf stars. Astronomers ...

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