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exoplanet

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Gaseous heavy metals in the atmosphere of an ultra-hot exoplanet

KELT-9 is a hot blue star in the constellation Cygnus. It has a temperature of over 10,000 K and a mass that is over twice larger than the Sun. It is very luminous (though not visible with the naked eye) and as such belongs to... click to read more

  • Jens Hoeijmakers | Postdoctoral Research Fellow at Département d'Astronomie, Geneva Observatory, University of Geneva, Geneva, Switzerland; Center for Space and Habitability (CSH), University of Bern, Bern, Switzerland
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exoplanet
atmosphere
exploration
Views 1437
Reading time 4 min
published on May 14, 2019
An exoplanet with glowing water reveals its nature

Space-based observatories such as the Hubble Space Telescope are providing valuable insights into the atmospheres of planets outside our solar system, known as "exoplanets". We have recently used Hubble to uncover the most compelling evidence to date for a stratosphere layer on one such exoplanet,... click to read more

  • Tom Evans | Research Fellow at College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, United Kingdom
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exoplanet
atmosphere
stratosphere
WASP-121b
Views 2105
Reading time 3.5 min
published on May 24, 2018
An exoplanet surrounded by an atmosphere larger than its star

In the past 20 years, scientists have discovered many planets around other stars than the Sun. Nearly half of these so-called exoplanets orbit extremely close to their star (more than ten times closer than Mercury revolves around the Sun in our Solar System), raising many... click to read more

  • Vincent Bourrier | Postdoctoral Research Fellow at Department of Astronomy, Geneva Observatory, University of Geneva, Geneva, Switzerland
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space
exoplanet
transit
warm neptune
Views 2601
Reading time 4 min
published on Nov 26, 2015