NASA astroid WARNING: DART mission ‘Earth's last line of defence’ NASA is readying to fire a spacecraft into an asteroid, testing Earth’s last line of defence should a rogue space rock veer onto a catastrophic collision course with our planet. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Trilobites: Ancient Cycle of Italy’s Volcanic Giant Seems to End in a Large EruptionMH370 news: Malaysia Airlines plane could have vanished after batteries EXPLODED in midairLong-term weather forecast: ‘RECORD COLD’ temperatures on way as SOLAR MINIMUM beginsPart of the Answer to Climate Change May Be America’s Trees and Dirt, Scientists SayNaomi Breslau, Who Studied Post-Traumatic Stress, Dies at 86Solar Storm WARNING: Particles from the Sun to HIT Earth on November 18