They sound like characters from a new Marvel movie, but these “Planetary Defenders” are real-life scientists in Tucson and elsewhere who are working to save the world from a major asteroid impact.

CAPE CANAVERAL, Fla. (AP) — Scientists have finally given the all-clear to Earth from a newly discovered asteroid. After two months of observations, scientists have almost fully ruled out any threat ...

We sit down with our guests to discuss a range of issues related to the asteroid: "city-killer" Scientists say an asteroid that has been described as a "city-killer" now has a near 0% chance of ...

Asteroid discovery: Amid the craze of "planet parade” a teenage boy discovered an asteroid. A 14-year-old boy from Noida who ...