In the event of an impending collision, would a nuclear bomb be enough to stop a killer asteroid ?
The 400m wide asteroid will pass by the closest a tracked object of its size has ever done before.
Doubt has been cast on where the asteroid that killed off the dinosaurs would have come from.
Scientists have proposed a spacecraft that could prevent an asteroid from colliding with the Earth.
NASA's Dawn spacecraft has taken a stunning close-up photograph of the asteroid it now orbits.
NASA's Dawn spacecraft has become the first probe ever to orbit an object in the asteroid belt.
An asteroid the size of an office block will narrowly pass us by on Monday, say astronomers.
NASA's Dawn spacecraft has taken remarkable images of its approach towards the massive asteroid.
A newly discovered asteroid has been found to have been following us for 250,000 years.
One astrophysicist has a new way to search for life - to look for alien mining in asteroid belts.
NASA have held a press conference to reveal details of their mission to send astronauts to an asteroid.
One physics professor has suggested astronouts get to Mars by hitching a ride on the back of an asteroid.
NASA will play a leading role in Earth's response to possible asteroid threats.
New research has suggested that water carried on asteroids is a lot more common than believed.
Any life that existed here 3.9 billion years ago would have been wiped out in a massive asteroid bombardment.
ESA's Rosetta probe has flown within 1900 miles of the largest asteroid ever visited by a spacecraft.
Scientists have suggested that blowing massive asteroids to bits with nuclear bombs might be a viable tactic.
Obama's plan to land humans on as asteroid by the year 2025 have been met with uncertainty.
Japan's unmanned Hayabusa spacecraft is on its way back to Earth carrying samples of the asteroid Itokawa.
Plans to determine the trajectory of an asteroid that might hit Earth in 2036 may be foiled by funding cuts.