Asteroids are rocky, airless remnants from the formation of our solar system. Most asteroids are found in the main asteroid belt, which orbits the Sun between Mars and Jupiter. Asteroids range in size from Vesta, the largest at about 329 miles (530 kilometers) in diameter, to bodies that are less than 33 feet (10 meters) across.

To Understand Asteroid formation we need to understand other objects and their formation as well

⇒ About 4.6 billion years ago, a giant cloud of gas and dust collapsed.

⇒ Sun and Planetary formation: Most of the material in the cloud fell to the center and formed the sun, while some of the dust condensed into planets. This process, called accretion, continued until the material reached the size of Planets.

⇒ However, the gravity of Jupiter eventually stopped the formation of planetary bodies in this region, causing the small bodies to collide with each other and fragment into asteroids.

The Milky Way is a spiral galaxy that contains our solar system and billions of stars, gas, and dust.

Name: The Milky Way gets its name from the way it appears as a milky band of light in the night sky. The name comes from the Classical Latin via lactea, which is derived from the Greek galaxías κύklos, meaning "milky circle".Its called Akash Ganga because it appears in the night sky as a wide, white river, similar to the River Ganga.

⭕Additional iNFO: Nearest Galaxy to Milky Way⭕

⇒ The Andromeda galaxy is the closest large galaxy to the Milky Way, and is about 2.5 million light-years away. It is also known as Messier 31 or NGC 224. The Andromeda galaxy is a barred spiral galaxy similar to Milky Way

A galaxy is a massive collection of stars, planets, gas, dust, and dark matter held together by gravity. Galaxies come in a variety of shapes and sizes, and can range from a few thousand stars to trillions.

⭕Additional iNFO: The three main types of galaxies⭕

⇒ Elliptical galaxies: These galaxies are mostly made up of old stars and are shaped like spheres or ellipsoids. They have no spiral arms and are thought to be some of the oldest galaxies in the universe.

⇒ Spiral galaxies: These galaxies are large rotating disks of stars and nebulae surrounded by a dark matter shell. They are one of the most common types of galaxies, making up about 77% of all galaxies.

⇒ Irregular galaxies: These galaxies have a chaotic appearance and lack a nuclear bulge or spiral arms. They are thought to make up about one-quarter of all galaxies. Some irregular galaxies were once elliptical or spiral galaxies that were warped by an external gravitational force.

The universe is all of the galaxies – billions of them! Universe is all of space and time and their contents, including planets, moons, minor planets, stars, galaxies, the contents of intergalactic space and all other forms of matter and energy

How big is the Universe?

Not all of the Universe however is currently known to us; so, we can't quantify its exact size. The observable universe is a spherical region of the universe consisting of all matter that can be observed from Earth or its space-based telescopes. The observable universe is estimated to be about 93 billion light-years in diameter

When meteoroids enter Earth's atmosphere (or that of another planet, like Mars) at high speed and burn up, the fireballs or “shooting stars” are called meteors.

A meteoroid is a small rocky or metallic body in outer space. Meteoroids are distinguished as objects significantly smaller than asteroids, ranging in size from grains to objects up to a meter wide

When a meteoroid survives its trip through the atmosphere and hits the ground, it's called a meteorite. Meteorites are usually the size of a pebble or fist.