This artist's concept illustrates an imminent planetary collision around a pair of double stars. NASA's Spitzer Space Telescope found evidence that such collisions could be common around a certain type of tight double, or binary, star system.
The outer Solar System has enough mysteries and potential discoveries to keep scientists busy for decades. Case in point, Uranus and it's system of moons. Since the beginning of the Space Age, only one space probe has ever .
Nemesis - The Death Star Nemesis is a hypothetical star orbiting the Sun at a distance of about to AU, somewhat beyond a hypothetical cloud of proto-comets at a great distance from the Sun ( the Oort cloud ).
This artist's concept illustrates the hottest planet yet observed in the universe. The scorching ball of gas, a 'hot Jupiter' called HD is about 3 times hotter than the rocky surface of Venus, the hottest planet in our solar system.