Astronomers may finally understand why planets orbiting two suns, the real-world equivalents of the "Star Wars" planet ...

Scientists uncover a new reason for fewer planets around twin stars. Einstein's theory of general relativity shows that close binary stars can destabilize planetary orbits over billions of years. This ...

Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is only the third to be found on the outskirts of our galaxy's dense central ...

At the heart of our own galaxy, there is a dense thicket of stars with a supermassive black hole at the very center. NASA's Nancy Grace Roman Space Telescope will provide the deepest-ever view of this ...