Irish group study warning system for space objects

An Irish scientist is helping to investigate the threat of large near-earth asteroids and comets crashing into our planet.

The 20 metre Chelyabinsk meteor which exploded over Russia skies two years ago injuring more than 1,200 people was a sobering reminder of the danger of space objects hitting the Earth, but the Armagh Observatory are at the forefront of research into the potential threat from comets.

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