Heliosphere
The heliosphere is a vast region of space dominated by the Sun’s magnetic field and the solar wind. It extends…
Category: Planets and Moons
Interplanetary magnetic field (IMF)
The Interplanetary Magnetic Field (IMF) is a complex and dynamic magnetic field that permeates the space between the Sun and…
Solar Wind A Constant Stream of Particles
The solar wind is a continuous stream of charged particles, primarily protons and electrons, emitted from the Sun. It travels…
Dark Matter The Invisible Universe
Dark matter is a mysterious substance that makes up about 85% of the matter in the universe. While it cannot…
Light-Year A Cosmic Unit of Distance
A light-year is a unit of length used to measure astronomical distances. It is defined as the distance that light…
Orbits The Paths of Celestial Bodies
An orbit is the path that one celestial body takes around another. In our solar system, planets orbit the Sun,…
Astronauts Pioneers of Space
Astronauts are individuals who have trained and qualified to travel into space. They are explorers who have pushed the boundaries…
Spacecraft Our Vehicles to the Cosmos
Spacecraft are vehicles designed to operate in space. They come in a variety of shapes, sizes, and capabilities, and have…
Nebulae Cosmic Clouds of Gas and Dust
Nebulae are vast clouds of gas and dust that exist in interstellar space. They are the birthplaces of stars and…
Comets Icy Wanderers of the Solar System
Comets are small, icy bodies that orbit the Sun. They are often referred to as “dirty snowballs” because they are…
Stars The Luminous Hearts of the Universe
Stars are massive, luminous spheres of plasma that generate energy through nuclear fusion. They are the fundamental building blocks of…
Celestial Bodies The Building Blocks of the Universe
Celestial bodies are any natural object in space, such as stars, planets, moons, asteroids, comets, and meteoroids. They are the…