Helium-Rich Gas Giants May Be Common in Milky Way Galaxy

Gaseous planets with helium-rich atmospheres may be common in our Galaxy, according to a new study accepted for publication in the Astrophysical Journal (arXiv.org preprint). To date, astronomers using NASA’s Kepler space telescope have discovered hundreds of candidate planets that fall into the category of the so-called warm Neptunes and sub-Neptunes. These extrasolar gas giants [...] —> Read More