Potentially Hazardous Asteroids

A depiction showing the orbits of known Near-Earth Asteroids (blue) in comparison to the relatively circular orbits of Mercury, Venus, Earth (white), and Mars. This view looks down onto the north pole of the solar system.

~500,000: Predicting the Next Major Asteroid Impact on Earth

Exploring the likelihood and potential consequences of future major asteroid impacts on Earth, and the ongoing efforts to predict and prepare for these events

A dark, cratered near-Earth asteroid, resembling 99942 Apophis, approaches Earth in this painting by planetary scientist and artist William K. Hartmann.

1999: Understanding the Torino Impact Hazard Scale

The Torino Scale assesses cosmic impact risks on Earth, ranging from 0 (no risk) to 10 (certain catastrophe). All known PHAs currently score 0, but monitoring continues