Cassiopeia A, or Cas A for short, is one of the most well studied supernova remnants in our galaxy. But it still holds major surprises.
Astronomers announced today that they have found eight new planets in the "Goldilocks" zone of their stars, orbiting at a distance where liquid water can exist on the planet's surface.
How do you make an Earth-like planet? The "test kitchen" of Earth has given us a detailed recipe, but it wasn't clear whether other planetary systems would follow the same formula.
(617) 495-7462Christine Pulliam
HARVARD-SMITHSONIAN CENTER FOR ASTROPHYSICS | 60 GARDEN STREET | CAMBRIDGE, MA 02138