Mysterious ripples found racing through planet-forming disc

Mysterious ripples found racing through planet-forming disc

Using images from the NASA/ESA Hubble Space Telescope and ESO’s Very Large Telescope, astronomers have discovered never-before-seen structures within a dusty disc surrounding a nearby star. The fast-moving wave-like features in the disc of the star AU Microscopii are unlike anything ever observed, or even predicted, before now. The origin and nature of these features …



Where to look for life? Astronomers devise ‘habitability index’ to guide future search

Where to look for life? Astronomers devise ‘habitability index’ to guide future search

Powerful telescopes are coming soon. Where exactly shall we point them? Astronomers with the University of Washington’s Virtual Planetary Laboratory have created a way to compare and rank exoplanets to help prioritize which of the thousands discovered warrant close inspection in the search for life beyond Earth. The new metric, called the “habitability index for …