Near-Earth objects are asteroids and comets with orbits that bring them to within 120 million miles (195 million kilometers) of the Sun, which means they can circulate through the Earth’s orbital ‘neighborhood.’ Most asteroids range in size from about 10 feet to nearly 25 miles across!
The orbit of each object is computed by finding the path through space by NASA, which often span many orbits over many years or decades. As more observations are made, the accuracy of an object’s orbit improves greatly, and it becomes possible to predict where an object will be years or decades into the future – and whether it could come close to Earth.
Just the other day we had such an event. A giant asteroid whizzed past the earth, NASA had said. The asteroid, called 7482 (1994 PC1), measured more than a kilometer in width (approximately 3,450 feet) – making it larger than any building on earth. For comparison, the tallest building on earth, the Burj Khalifa, measures 2,722 feet.
NASA’s Asteroid Watch Twitter account said that PC1 had been studied by astronomers for decades and would not pose a threat to earth. “At its closest, the asteroid will still be five lunar distances, which is five times the moon’s distance from Earth.”
“Rest assured, 1994 PC1 safely flew past our planet at 1.2 million miles away,” NASA tweeted. According to Space.com, the asteroid made its closest approach on January 18 at 4.51 pm EST. The asteroid was traveling at a speed of around 45,000 miles per hour.
Zina Hermez has authored the best selling book, Not Without God: A Story of Survival. She’s been featured in numerous articles, guest posts, podcasts, websites, newsletters, and magazines. She’s been featured on ESPN’s ‘Solutions from the Huddle’ broadcast and on Grace and Truth Radio World. Zina’s written hundreds of articles and has taught thousands of students from all over the world spanning many different backgrounds and cultures. She’s appeared in Christianity Today, the Suite T blog, and the Southern Writers magazine among other places. She writes on faith, science, and overcoming adversity. She also writes on health and diet and loves to help others. Her latest book, Not Without God: Hope In the Storm will soon be released on Jan 24! Order your copy here: https://www.amazon.com/Not-Without-God-Hope-Storm-ebook/dp/B09P9T2DLT