6 planets to align in night sky

Stargazers will be treated to a dazzling six-planet "alignment" this January.
Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...
A new study claims it is possible an "alien visitor" could have warped our solar system during its earliest years.
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...
The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...
When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...
Although it's being mistakenly promoted as a "rare planetary alignment," one of the best "planet parades" in half a century ...