One theory relating to dark matter is that everything that happens with regular matter can also happen with mirror matter, but it would be invisible to the human eye.
As an object travels through space it absorbs heat from the sun and emits heat energy in the form of photons. These photons push the asteroid in a certain direction.
As scientists studied the Kuiper Belt, they became puzzled by a group of asteroids that deviated from the normal orbital path. The conclusion? There’s something massive out there that is pulling the asteroids out of line.
Leading NASA scientists discuss the implications of a doomsday asteroid.
Take it from us, you don't want to smell like a comet.
The dinosaurs died off after a massive asteroid strike with a billion times more energy than the atomic bombs dropped on Hiroshima. A team at NASA studies the impact to learn more.
In February 2013, a stunning sight in the sky over Russia made international headlines. The light of an asteroid hurtling toward Earth was brighter than the sun.
The key to the continuing future of the human race might just be the very sort of destruction that we fear here on earth.
To protect Earth from impacts, we may have to push and redirect asteroids. In this experiment scientists see if they can shoot an asteroid without destroying it. A nudge of a few centimeters is all we need to potentially save Earth.
NASA's OSIRIS REx mission is on a journey to study and sample asteroid Bennu. Scientists think this asteroid could be similar to the ones that may have brought life to Earth.