Asteroid's surprise close approach illustrates need for more eyes on the sky

On 25 July, an asteroid the size of a football field flew by Earth, coming within 65 000 km of our planet's surface during its closest approach—about one fifth of the distance to the Moon.

source https://www.lifetechnology.com/blogs/life-technology-news-blog/asteroids-surprise-close-approach-illustrates-need-for-more-eyes-on-the-sky