What is meaning of falling star?
A falling star is also referred to as a shooting star. A shooting star is actually a meteor, which is a chunk of extraterrestrial rock pulled into the Earth’s atmosphere by gravity. Most meteors are closer to dust or sand in size, not the large boulders frequently seen in science fiction movies. As these tiny fragments of rock fall through the Earth’s outer layers of air, they experience a build-up of frictional heat. The individual particles glow brightly as they continue to fall and burn up. Observers on the ground may catch a fleeting glimpse of the shooting star as it streaks across the night sky.
A “falling star” or a “shooting star” has nothing at all to do with a star! These amazing streaks of light you can sometimes see in the night sky are caused by tiny bits of dust and rock called meteoroids falling into the Earth’s atmosphere and burning up. The short-lived trail of light the burning meteoroid produces is called a meteor. Meteors are commonly called falling stars or shooting stars. If any part of the meteoroid survives burning up and actually hits the Earth, that remaining bit is then called a meteorite.
A meteoroid is a sand- to boulder-sized particle of debris in the Solar System. The visible path of a meteoroid that enters Earth’s (or another body’s) atmosphere is called a meteor. If a meteoroid reaches the ground, it is then called a meteorite. Many meteors are part of a meteor shower. The root word meteor comes from the Greek meteōros, meaning “high in the air.” It is also commonly although erroneously called a shooting star. Overview [edit] Meteoroid The current official definition of a meteoroid from the International Astronomical Union is “a solid object moving in interplanetary space, of a size considerably smaller than an asteroid and considerably larger than an atom.”[1] The Royal Astronomical Society has proposed a new definition where a meteoroid is between 100 µm and 10 m across.[2] The NEO definition includes larger objects, up to 50 m in diameter, in this category. Very small meteoroids are known as micrometeoroids (see also interplanetary dust). The composition of mete
