An analytical update on the Tesla Roadster with its mannequin “Starman,” launched by Falcon Heavy in February 2018. This ...

One of my favorite classes to teach is Physics for Elementary Education. It's a physics class designed to address the needs of future elementary school teachers—grades 1 through 6 or so. To guide the ...

The Solar System consists of the eight planets that orbit our Sun and other celestial bodies such as moons, comets, asteroids, minor planets, and dust and gas. The Sun is considered as the centre of ...

Before heliocentrism was proposed, Earth was thought to be at the center of the universe. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

The Leiden Sphaera — the dynamic model of the solar system pictured above — was built around 1670 by Dutch clockmaker Steven Tracy. The impressive cosmic model measures 1.5 meters across, and is ...

In 1543, Polish mathematician and astronomer Nicolaus Copernicus published his theory of a heliocentric universe in which the Earth and other celestial objects revolve around the sun. It was met with ...