Planet

Jupiter which has at least 69 moons!

Jupiter is the fifth planet from the Sun and the largest in the Solar System. It is a giant planet with a mass one-thousandth that of the Sun, but two and a half times that of all the other planets in the [ … ]

What everybody ought to know about planets!

The term planet is ancient, with ties to history, astrology, science, mythology, and religion. Several of them in the Solar System can be seen with the naked eye.   What are planets? These were regarded by [ … ]

Uranus, the first planet discovered with a telescope

Uranus is the seventh planet from the Sun. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. It is similar in composition to Neptune, and both have different bulk chemical composition [ … ]

Pluto in the Kuiper belt in the Solar System

The Kuiper belt, sometimes called the Edgeworth–Kuiper belt, is a circumstellar disc in the Solar System beyond the (known) planets, extending from the orbit of Neptune (at 30 AU) to approximately 50 AU from the Sun.   What is the Kuiper belt? It is [ … ]

Do you know what is the horizon?

The horizon or skyline is the apparent line that separates earth from sky, the line that divides all visible directions into two categories: those that intersect the Earth’s surface, and those that do not. What is the [ … ]