Profile cover photo
Profile photo
Henry Rouhivuori
14,371 followers -
Administratör med intresse för fotografering, Linux och astronomi.
Administratör med intresse för fotografering, Linux och astronomi.

14,371 followers
About
Posts

Post has attachment
TESS is the next exoplanet-hunting mission following the Kepler Space Telescope mission. Kepler has already discovered thousands of exoplanets and TESS is expected to find thousands more. Unlike Kepler however, TESS will survey almost the entire sky over at least two years, looking at 200,000 of the nearest and brightest stars. Kepler focused on one small patch of sky, examining stars further away. It is expected that TESS will be able to catalog more than 1,500 transiting exoplanet candidates, including a sample of about 500 Earth-sized and “super-Earth” planets, with radii less than twice that of the Earth.
Add a comment...

Post has attachment
Photo
Add a comment...

Post has attachment
Published in Nature Astronomy, the Hubble results screen four of the TRAPPIST-1 planets — d, e, f and g — to study their potential atmospheres in the infrared, using Hubble’s Wide Field Camera 3 in data collected from December 2016 to January 2017. The data allow us to rule out a cloud-free hydrogen-rich atmosphere on three of these worlds, while TRAPPIST-1g needs further observation before a hydrogen atmosphere can be conclusively excluded.
Add a comment...

Post has attachment
Thousands of exoplanets have been discovered so far, of many different types, but they all share one thing in common: they have all been found in our own galaxy. This is not surprising however, since of course they would be easier to detect than ones even farther away. But now, astronomers have reported the discovery of the first possible exoplanets in another galaxy, an incredible accomplishment, especially considering that the galaxy is 3.8 billion light-years away!
Add a comment...

Post has attachment
A new national facility at ESO’s La Silla Observatory has successfully made its first observations. The ExTrA telescopes will search for and study Earth-sized planets orbiting nearby red dwarf stars. ExTrA’s novel design allows for much improved sensitivity compared to previous searches. Astronomers now have a powerful new tool to help in the search for potentially habitable worlds.
Add a comment...

Post has attachment
An international team of citizen scientists and professional astronomers has discovered a system of at least five massive exoplanets, orbiting the Sun-like star K2-138. This planetary system is approximately 792 light-years away toward the constellation Aquarius.
Add a comment...
Wait while more posts are being loaded