An asteroid portrayed to be passing in front of the blue-green Earth and the moon.
An asteroid passes by Earth in this ESA illustration.

A small asteroid explosion provided another reminder of the hazards that near Earth objects, or NEOs, pose to the Earth. The good news is that NASA’s efforts to track, study and prepare for such hazards is more robust than ever.

This post is only available to members.

Jeff Foust has more than a decade of experience writing about space policy, entrepreneurial ventures and regulatory affairs. In 2001, he established spacetoday.net to aggregate and summarize the day's space-related news stories. In 2003, he started The...