6 planets to align in night sky

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...
Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.
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 ...
A new study claims it is possible an "alien visitor" could have warped our solar system during its earliest years.
When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...
Astronomers have discovered extremely powerful winds pummeling the equator of WASP-127b, a giant exoplanet. Reaching speeds ...
The six planets were visible in the days immediately leading up to Jan. 21, and for about four weeks afterward. Mars, Venus, ...