Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. The giant metallic cloud ...

Gas giants—the species of planets to which our solar system neighbors Jupiter and Saturn belong—are truly fascinating. The largest of them, in fact, often evade easy categorization, as their size ...

A giant cloud of vaporized metal may be hiding a secret planet or second alien sun in a nearby star system, a new study reveals. The mysterious cloud is up to 15,000 times wider than our planet, and ...

Astronomers suspect that a massive metallic cloud swirling in a nearby star system could be hiding a giant planet or dwarf star from view, after it drastically dimmed a sun-like star for around nine ...