Twins on the big screen have long enthralled audiences not simply because of their visual resemblance, but because of the compelling duality that they tend to embody.

For a group that makes up just 0.4 percent of the world’s population, identical twins have enthralled moviegoers.

NASA has just premiered Planetary Defenders, offering a fascinating look at the high-stakes work geared toward protecting Earth from any large asteroids discovered coming our way.