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

This understanding was used as a metaphor for what happens within our inner worlds when a planet is in retrograde. No matter what we humans think life should look like, retrogrades reminds us that ...

Here’s what you should know when you go outside to see for yourself: Yes, the planets are indeed lined up across our sky. No, ...

Worlds will align for a "planetary parade" in January, with four bright and easily visible to the naked eye. But an even better view arrives in February and March. Here's what you need to know.

Four of those planets are close enough ... As a result, we can enjoy a planetary parade every time the inner planets make a ...

Beginning Jan. 21, most people in the United States will be able to view at least four planets with varying ... because of the motion of the inner planets," Pitts said. A "parade of planets ...

It’s been pretty cold recently, so you may need to channel your inner polar bear to get a good view of the ongoing planetary alignment this month. In the coming weeks, Mars, Jupiter, Uranus, Neptune, ...

Six planets will be in alignment this weekend, with four of them shining bright in one sweeping view. What to know about the planet parade.

Using computer models of the four outer planets ... Because many close-matching simulations had the planet-like object swooping through the inner solar system, the researchers created an ...