Two Enormous Asteroids The Size Of Buildings Will Fly By The Earth - NASA Asteroid Watch.
Two enormous asteroids the size of buildings will fly by the Earth while you relax this weekend, according to NASA's Asteroid Watch.
Asteroids, also referred to as the asteroid belt, are objects made of rock, dust, and metallic minerals that predominantly reside in the space between the orbits of Mars and Jupiter.
However, some asteroids deviate from this path and are beyond Neptune's orbit, while others approach the Sun more closely. These asteroids are categorized as Near-Earth Objects (NEOs) because they sometimes approach the Earth extremely closely while traveling through the Earth's orbit.
An asteroid must be within 1.3 astronomical units (AU) of Earth to be classified as a NEO, or it must be at least 460 feet (140 m) away from the Sun to qualify as a potentially dangerous object (PHO).
~ Jai Krishna Ponnappan
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