News tagged with stars

Astronomers find a famous exoplanet's doppelgänger

When it comes to extrasolar planets, appearances can be deceiving. Astronomers have imaged a new planet, and it appears nearly identical to one of the best studied gas-giant planets. But this doppelgänger differs in one ...

dateJul 17, 2018 in Astronomy
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Students find foundations for massive stars

For three years, Jenny Calahan led fellow undergraduate students at the University of Arizona (UA) in research to help unravel the mystery of how the galaxy's most massive stars are born.

dateJul 25, 2018 in Astronomy
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Iron and titanium in the atmosphere of an exoplanet

Exoplanets, planets in other solar systems, can orbit very close to their host stars. When the host star is much hotter than the sun, the exoplanet becomes as hot as a star. The hottest "ultra-hot" planet was discovered last ...

dateAug 15, 2018 in Astronomy
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NASA's TESS spacecraft starts science operations

NASA's Transiting Exoplanet Survey Satellite has started its search for planets around nearby stars, officially beginning science operations on July 25, 2018. TESS is expected to transmit its first series of science data ...

dateJul 27, 2018 in Astronomy
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Hubble images Milky Way's big sister

This image taken by the NASA/ESA Hubble Space Telescope's Wide Field Camera 3 (WFC3) shows a beautiful spiral galaxy called NGC 6744. At first glance, it resembles our Milky Way albeit larger, measuring more than 200,000 ...

dateJul 31, 2018 in Astronomy
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