A newly identifiedplanetary system is forcing astronomers to rethink how worlds form and evolve, as a rocky planet appears ...
When a hunk of ice from another star system hurtles through our cosmic neighborhood, astronomers pay attention. When that ...
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 ...