Illustration of 55 Cancri e, a super-Earth that’s thought to have a thick layer of diamond (Yale News/Haven Giguere) If diamonds are forever then this planet should be around for a very, very long time; it appears to be literally made of the stuff. 55 Cancri e — an exoplanet discovered in 2004 — is … Continue reading "Nearby Exoplanet Could Be Covered With Diamond"