Humanity has already flung machines into interstellar space, but sending people is a different problem entirely. The physics of propulsion, the fragility of the human body, and the sheer size of the ...

Our solar system is made up of the sun, the eight known planets and the dozens of moons that circle those planets. But then there are innumerable asteroids, comets and dwarf planets wandering around.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Astronomers have found a distant celestial body — ...

The Panel on Small Solar System Bodies is one of six panels providing topical input to the Planetary Science and Astrobiology Decadal Survey Steering Group. This panel will discuss the role played by ...