May 1, 2023 will see three asteroids approaching Earth and they will get very close. Out of these three asteroids, one is as large as 100-foot while the other two are 45-foot and 46-foot wide. According to NASA, any asteroid that comes within 4.6 million miles or 7.5 million kilometers of Earth, or is larger than approximately 150 meters, is considered potentially dangerous.
Therefore, in order to stay alert and be prepared to avoid any such incidents and situations where human lives can be lost, NASA keeps an eye on the movement of asteroids, their speed, how close will they come to Earth, and more. The space organisation uses its telescopes and observatories like NEOWISE to track and study asteroids. It also uses a variety of ground based telescopes like Atacama Large Millimeter/submillimeter Array (ALMA) located in the Antofagasta Region of Atacama Desert in Chile for the same.
