Tag: Asteroid 2020 NC

[ad_1] In the last couple of months, several monstrous space rocks have made very close approaches to Earth. From a 700-foot to a 1600-foot giant asteroid, all have caused concern as they are big and got very close to our planet. Thankfully, despite being potentially hazardous, all of them have safely passed the Earth. But this may not be the case every time! Therefore, NASA actively scans space to detect upcoming asteroids and the danger they pose in advance.NASA says that with the help of optical telescopes, it can survey large regions of the sky and detect light from the Sun that is reflected by an object, depending on its size and surface brightness. However, ground-based radar can more precisely track and determine the orbits of asteroids discovered by optical telescopes. It finds ...