It looks like a sapphire jewel in space, but HD 189733bis anything but serene. With winds reaching seven times the speed of ...
From a distance, it looks like a serene blue twin of our own world, a dot that could almost pass for Earth in a telescope ...
That would make it thousands of times more massive than any moon orbiting a solar system plane  — so massive it could make ...
Astronomers are testing a quieter way of searching for moons beyond the solar system, using careful measurements of motion ...
It was one of humanity’s greater vanities that we ever questioned whether there are any planets in the universe beyond the eight in our little solar system. Our sun is a perfectly ordinary star, ...