Asteroids to Watch Out For

The video discusses NASA's Near Earth Object Program, which tracks asteroids and assesses their risk of impacting Earth. It highlights specific asteroids like Apophis, 2007 VK 184, 2011 AG5, and 1950 DA, detailing their sizes, potential impact probabilities, and the concept of keyholes in predicting future collisions. The program aims to refine predictions and mitigate potential threats from these celestial bodies.

Describe the concept of a 'keyhole' in asteroid tracking and its significance.

What is the impact probability of asteroid 1950 DA, and why is it considered a potential threat?