"This is, incidentally, why we sometimes observe planets appearing to approach closely to each other on the sky, as we view ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Mars will be making its closest approach to Earth in two years, and thus, the mighty red planet, named for the god of war ...

This January and February, a rare planetary alignment featuring Venus, Mars, Jupiter, Saturn, Uranus, and Neptune will be ...

A new study suggests that a planet-sized object may have passed through the solar system billions of years ago.

Mars, Jupiter, Uranus, Neptune, Venus, and Saturn—will align in a rare celestial parade, visible for weeks. A seven-planet ...

On the evening of February 28, stargazers will witness a rare celestial event: an alignment of seven planets visible ...

Although the planets won’t form a perfectly straight line, their simultaneous visibility in a single part of the sky will be ...

Since the middle of the month, four of the five brightest planets in the night sky have been visible after sunset and will ...

The research, yet to be peer-reviewed, sheds light on what could have changed the orbits of several planets in the solar ...

Venus, Mars, Jupiter and Saturn are visible to the naked eye this month and for part of February. Uranus and Neptune can be ...