NASA warns AGAIN! Hazardous asteroid heading for Earth today

    Alert! This hazardous asteroid is heading for our planet today. Here’s what NASA said about this asteroid.
    By: HT TECH
    | Updated on: Sep 22 2022, 12:29 IST
    Asteroid fun facts in pics: NASA reveals all you need to know
    Asteroid and Earth
    1/5 Space is full of objects, out of which only a few have been discovered. Asteroids are some of these objects. If you are not aware about the dangerous objects called asteroids, here are some facts you should know. First, did you know that asteroids are sometimes called minor planets? Well, they are. (Pixabay)
    Asteroid
    2/5 Differences between an Asteroid, Comet, Meteoroid, Meteor and Meteorite: According to the information provided by NASA, Asteroid is a relatively small, inactive, rocky body orbiting the Sun. Comet is a relatively small, at times active, object whose ice can vaporize in sunlight forming an atmosphere (coma) of dust and gas and, sometimes, a tail of dust and/or gas. Meteoroid is a small particle from a comet or asteroid orbiting the Sun. Meteor is the light phenomena which results when a meteoroid enters the Earth's atmosphere and vaporizes, in short, a shooting star. While, Meteorite is a meteoroid that survives its passage through the Earth's atmosphere and lands upon the Earth's surface. (NASA)
    Asteroid
    3/5 Asteroid: Size, frequency and impact- More than 100 tons of dust and sand sized particles are bombarded towards Earth everyday, according to NASA. While, about once a year, an automobile-sized asteroid hits Earth's atmosphere, creates an impressive fireball, and burns up before reaching the surface. Every 2,000 years or so, a meteoroid the size of a football field hits Earth and causes significant damage to the area. Only once every few million years, an object large enough to threaten Earth's civilization comes along. Impact craters on Earth, the moon and other planetary bodies are evidence of these occurrences. Space rocks smaller than about 25 meters (about 82 feet) will most likely burn up as they enter the Earth's atmosphere and cause little or no damage. By comparison, asteroids that populate the main asteroid belt between Mars and Jupiter, and pose no threat to Earth, can be as big as 940 kilometers (about 583 miles) across. (NASA)
    Asteroid
    4/5 How is an Asteroid Orbit Calculated? An asteroid's orbit is computed by finding the elliptical path about the sun that best fits the available observations of the object. That is, the object's computed path about the sun is adjusted until the predictions of where the asteroid should have appeared in the sky at several observed times match the positions where the object was actually observed to be at those same times. (Pixabay)
    Asteroid
    5/5 What is NASA doing to find and learn more about potentially hazardous asteroids and comets? NASA has established a Planetary Defense Coordination Office (PDCO), managed in the Planetary Science Division at NASA Headquarters in Washington, D.C. The PDCO ensures the early detection of potentially hazardous objects (PHOs) - asteroids and comets whose orbits are predicted to bring them within 0.05 Astronomical Units of Earth (5 million miles or 8 million kilometers) and of a size large enough to reach Earth's surface - that is, greater than approximately 30 to 50 meters. NASA tracks and characterizes these objects and issues warnings about potential impacts, providing timely and accurate information. NASA also leads the coordination of U.S. Government planning for response to an actual impact threat. (AFP)
    Asteroid and Earth
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    NASA has warned of a hazardous asteroid which is heading for our planet today. (Pixabay)

    Amidst high solar activity these past few weeks, another asteroid is headed for us. NASA has issued a warning for the asteroid that is expected to pass by Earth closely today, September 22. We are in the third week of September and there have already been more than 15 asteroid flybys already. August witnessed more than 40 asteroids flying closely past Earth and the month of September seems to achieve those figures, if not exceed them.

    Asteroid 2022 ST1 to just miss Earth tomorrow

    NASA has warned that an asteroid named Asteroid 2022 ST1 is heading for Earth and is expected to pass by the planet closely today, September 22. Asteroid 2022 ST1 is already on its way towards us travelling at a staggering speed of 48,708 kilometers per hour.

    The asteroid will make its closest approach to Earth today at a distance of just 1.5 million kilometers or 0.010668 astronomical units. An astronomical unit (AU, or au) is basically a unit of length equal to the average, or mean, distance between Earth and the Sun, that is, 149,597,870.7 kilometers. Asteroid 2022 ST1 is part of the Apollo group of asteroids. According to the-sky.org, this asteroid takes almost 976 days to complete one orbit of the Sun, during which its farthest distance from the Sun is 454 million kilometers and nearest distance is 122 million kilometers.

    NASA's DART Mission set to collide with target asteroid

    The DART spacecraft recently got its first look at Didymos, the double-asteroid system that includes its target, Dimorphos. According to the information provided by NASA, on September 26, DART will intentionally crash into Dimorphos, the asteroid moonlet of Didymos. While the asteroid poses no threat to Earth, this is the world's first test of the kinetic impact technique, using a spacecraft to deflect an asteroid for planetary defense."

    Using observations taken every five hours, the DART team will execute three trajectory correction maneuvers over the next three weeks, each of which will further reduce the margin of error for the spacecraft's required trajectory to impact.

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    First Published Date: 22 Sep, 12:29 IST
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