Meteors and Meteorites


“Small pieces of space debris that are on a collision course with the Earth are called meteoroids. When meteoroids enter the Earth’s atmosphere they are called meteors. Most meteors burn up in the atmosphere, but if they survive the frictional



“A comet is an icy body that releases gas or dust. They are often compared to dirty snowballs, though recent research has led some scientists to call them snowy dirtballs. Comets contain dust, ice, carbon dioxide, ammonia, methane and more.



“Asteroids are small, airless rocky worlds revolving around the sun that are too small to be called planets. They are also known as planetoids or minor planets. In total, the mass of all the asteroids is less than that of



“1) Mercury is the smallest planet in our solar system — only slightly larger than the Earth’s moon. It is the closest planet to the sun at a distance of about 58 million km or 0.39 AU. 2) Venus is

The Sun


“The sun is a star, a hot ball of glowing gases at the heart of our solar system. Its influence extends far beyond the orbits of distant Neptune and Pluto. Without the sun’s intense energy and heat, there would be

Solar System


“The Solar System is made up of all the planets that orbit our Sun. In addition to planets, the Solar System also consists of moons, comets, asteroids, minor planets, and dust and gas. Everything in the Solar System orbits or

Different types Constellation


“Ursa Major is a constellation visible throughout the year in most of the northern hemisphere. It can be seen best in the month of April. It is dominated by the widely recognized asterism known as the Big Dipper or the



“A constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU). These areas had their origins in star patterns from which the constellations take their names. There are 88 officially recognized constellations, covering

Pole star


A pole star is a visible star, preferably a prominent one, that is approximately aligned with the Earth’s axis of rotation; that is, a star whose apparent position is close to one of the celestial poles, and which lies approximately

The Stars


“A star is a massive, luminous sphere of plasma held together by its own gravity. The nearest star to Earth is the Sun, which is the source of most of the planet’s energy. Other stars are visible from Earth during

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