The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...
Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.
Gaia-4b is considered a super-Jupiter planet, a relatively cold gas giant, orbiting its star over 570 Earth-days. That star ...
Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...
On Feb. 24, from west to east, you can see Mercury, Saturn, Neptune, Venus, Uranus, Jupiter and Mars, all spanning 117.5°, ...
This alignment allowed the spacecraft to visit all four planets within a span of just 12 years, instead of the ... alien civilization observing our Solar System and using similar alignments ...