Just Passin' By: Asteroid Larger Than Statue of Liberty to Fly Past Earth on Sunday
00:11 GMT 18.09.2022 (Updated: 16:58 GMT 12.04.2023)
© AP Photo / Mark J. TerrillThe DART spacecraft, short for Double Asteroid Redirection Test, atop a SpaceX Falcon 9 rocket is seen Tuesday, Nov. 23, 2021, from Simi Valley, Calif. after launching from Vandenberg Space Force Base.
© AP Photo / Mark J. Terrill
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Most near-Earth objects have orbits that do not bring them particularly close to Earth; however, a small number of them - larger than 460 feet (140 m) in size and with orbits that bring them within 4.6 million miles (7.5 million km) of Earth's orbit around the Sun - are considered to be potentially hazardous.
On September 18, an asteroid known as 2005 RX3 will pass near Earth at a speed of approximately 17.46 km/s. When seen on the scale of the cosmos, the object will pass within 4,742,402 kilometers of the planet, which is considered a rather close distance.
For reference, about 385,000 kilometers separate Earth and the moon on average.
And while 2005 RX3 is set to flyby Earth on September 18, NASA is still keeping track of four additional objects - although smaller in sizes - as they progress along their orbital paths, in the same time as this huge asteroid.
However, even though some of them are expected to fly even closer to our planet, they do not exceed 55 meters in size, which in principle is comparable to the dimensions of an airliner.
Launching DART to Move Some Asteroid
Meanwhile, later this month, NASA is set to intentionally collide a spacecraft with a rather small asteroid to test its possibilities to save the planet from the strike.
After being launched 10 months ago, the Double Asteroid Redirection Test, or DART mission, will collide with the space rock on September 26. To see how it influences an asteroid's speed in space, the spacecraft will crash into an asteroid's moon. The agency will provide access to the live coverage of the event on its website.
DART sets sights on asteroid target ☄️🛰️@NASA's #DARTMission spacecraft recently got a first look at Didymos and its asteroid moonlet, Dimorphos. On Sept. 26, DART will intentionally impact Dimorphos to change its speed & orbit.
— NASA Asteroid Watch (@AsteroidWatch) September 7, 2022
Learn more: https://t.co/xFtJdCEdkL pic.twitter.com/AjDtr0V2ZS
Dimorphos, a tiny moon orbiting Didymos, a near-Earth asteroid, is the target of the expedition. According to NASA officials, the asteroid system offers no risk to Earth, making it the ideal target for testing a kinetic impact, which may be necessary if an asteroid is ever on course to strike Earth.
The occasion will serve as the organization's first large-scale demonstration of planetary protection deflection technology.
Our #DARTMission will crash into a non-hazardous asteroid on purpose on Sept. 26 as the world's 1st planetary defense test. But how will we know it worked? To find out, we visited @LowellObs, one of many observatories globally that will monitor the impact. https://t.co/TJn4hq8QKW pic.twitter.com/vAJlUUU3Ax
— NASA (@NASA) September 6, 2022
Asteroids and comets with orbits that bring them within 30 million miles (48.3 million kilometers) of Earth are referred to as near-Earth objects. The major objective of NASA and other space organizations throughout the world is to find threats from near-Earth objects, or NEOs, that could cause significant harm.