Here are the most likely ways asteroids could wipe out everything on Earth.
Scientists have focused more on asteroids over the past years but comets pose threats to Earth as well.
NASA and FEMA already know what to do in case an asteroid is seen heading toward Earth.
Scientists found new clues regarding the dinosaur-killing asteroid and it seems that there is more to it than just a deadly impact.
NASA-FEMA has plans in case of probable asteroid impact.
"Intruder Alert" system will warn earth of potential asteroid crashes that could wipe out cities -- or worse, humanity as a whole.
Many scientists believe that the dinosaur-killing mass extinction was caused by an asteroid impact. In the new study, it reveals that the extinction was caused by both volcanic eruptions and asteroid impact.