A rare parade of planets will light up the night sky throughout January. Six planets will be in alignment for the rest of the month – four of which will be visible with the naked eye, Preston Dyches, ...

You could give each card a unique background color or add in special messages ... The post Space Valentine’s Day Cards | Printable Solar System Valentines appeared first on Sunny Sweet Days.

“What’s up in the sky?” is a recurring feature and publishes on the first of every month. You can find it on WTOP’s The Space Place. Email Greg your space questions and he might answer ...

In the coming years, an unprecedented number of people will leave planet Earth—but it’s becoming increasingly clear that deep ...

The northern and southern lights, auroras visible from the poles, glow with a range of different colored lights. Here's the reason for each of those colors.

As the gatekeepers to the Kuiper Belt, Charon and Pluto are a unique double dwarf planet system. When you purchase ... which can result in that red color. It's no surprise that there's a lot ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

To better understand why the planets have variable compositions ... to the formation of the gas and ice giants in the outer solar system. This first-order model of planetary growth in the solar ...

These embryos, somewhere between small planetesimals and fully formed planets, were abundant during the solar system's formative stages and played a critical role in planetary formation.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.