Concerns have been raised regarding our potential to defend against everything from asteroids to ET.
The space agency has revealed new concept images detailing their plans to land astronauts on an asteroid.
A new class of asteroid has been identified to help find one that can be towed closer to the Earth.
The surface of an asteroid may not be quite as stable a place to land a spacecraft as previously thought.
A Russian scientist has proposed using old Soviet-era weaponry to defend against an asteroid impact.
House Republicans are contemplating whether to push for a Moon base instead of visiting an asteroid.
Russian scientists have proposed a novel new way to protect the Earth from deadly asteroid collisions.
A chunk of rock nine times the size of the QE2 ocean liner will pass within 3.6 million miles this month.
NASA has confirmed its long-expected asteroid retrieval mission as a precursor to a manned trip.
There are indications that NASA's next budget will include $100 million for a new asteroid mission.
Japan's Hayabusa 2 spacecraft will by the country's second attempt at an asteroid sample return mission.
Asteroids have wiped out life on Earth before - what are the chances of another hit any time soon ?
Infamous asteroid Apophis is in with a chance of hitting the Earth in just over 50 years time.
Researchers now believe the killer space rock could have been two asteroids orbiting one another.
In the wake of recent events there have been renewed calls for defensive measures against asteroids.
The 50m asteroid passed closer to the Earth than any other large asteroid in recorded history.
Deep Space Industries has announced plans to launch a fleet of asteroid prospecting spacecraft.
The European Space Agency is appealing for ideas for a future mission to study asteroid deflection.
In December 2004 Apophis was shaping up to be a major concern, but is that still the case now ?
The US space agency is considering a plan to drag a small asteroid in to orbit around the Moon.