Each year, Earth reaches its closest point to the sun in early January, a moment called perihelion. In 2026, this occurred on ...

Tycho Brahe was known for his comprehensive and remarkably accurate astronomical observations, and was considered one of the greatest astronomers before the invention of the telescope. However, ...

The dance of planets across the night sky, a celestial ballet that has captivated humanity for millennia, is governed by a set of elegant and profound laws. These laws, formulated by Johannes Kepler ...

The National Testing Agency (NTA) will soon begin the online registration process for the Joint Entrance Examination (JEE) Main 2026. The national level engineering entrance exam is conducted by NTA ...

Due to the lapse in federal government funding, NASA is not updating this website. This artist's concept shows an overhead view of the orbital position of the planets in systems with multiple ...

Kepler's laws show the effects of gravity on orbits. They apply to any object that orbits another: planets orbiting the Sun, moons orbiting a planet, spacecraft orbiting Earth.

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Abstract: Astronomy has evolved from qualitative observations to a precise science, founded on the basic laws of gravitation. Isaac Newton’s law of universal gravitation and Kepler’s laws of planetary ...