Human Spaceflight, Robotic Spaceflight, Stars The Real Reality Show: Is Interstellar Travel Really Possible?
Exotic Objects, Stars A white dwarf pulls matter from its binary and explodes in a nova. Yet when the mass hits a certain limit, the star bursts in a type Ia supernova and is destroyed. Why the difference?
Cosmology Is the cosmic microwave background a shell around us? Or are the microwaves everywhere in the universe?
Science Do whales have astronomy clubs? A whale’s eye is larger than most binoculars; what would it see when surfaced?
Alien Life, Exoplanets, Planets, Solar System The Real Reality Show: What Happened to the Water on Mars?