About the SA Blog Network

Posts Tagged "exoplanet atmospheres"

Basic Space

Alien planet’s atmosphere contains water and carbon monoxide

Artist's impression of planetary system HR 8799 at an early stage in its evolution, showing the planet HR 8799c, as well as a disk of gas and dust, and interior planets.  Credit: Dunlap Institute for Astronomy & Astrophysics; Mediafarm

Astronomers have found water vapour and carbon monoxide, but no methane, in the atmosphere of an alien planet orbiting a star 129 light years away. The star, known as HR 8799, is at the centre of the first planetary system beyond our solar system to be imaged directly, in 2008. The star has at least [...]

Keep reading »

More from Scientific American

Scientific American MIND iPad

Give a Gift & Get a Gift - Free!

Give a 1 year subscription as low as $14.99

Subscribe Now >>


Email this Article