(BBC Newsline 6.30 - 25/03/2009 / Reporter: Mike McKimm) A phone call to Belfast scientists said there was an eighty ton asteroid heading for earth at thirty thousand miles an hour and would they be able to track it with a telescope?
(BBC Newsline 6.30 - 13/02/2009 / Reporter: Mike McKimm) An asteroid striking Earth is a nightmare scenario we hope to avoid - but how well are we prepared to spot "near Earth events"?
(BBC Newsline 6.30 - 29/02/2008 / Reporter: Martin Cassidy) Satellites are being used to stop vessels crashing in our increasingly busy shipping lanes.