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Giant comets could pose danger to life on Earth

26 December 2015 Astronomy Now

Over the last two decades, the discovery of hundreds of giant comets, termed Centaurs, on unstable orbits in the outer planetary system means that these objects pose a much greater hazard to life than asteroids, according to a team of UK astronomers. Centaurs are typically 50 to 100 kilometres across, or larger, and a single such body contains more mass than the entire population of Earth-crossing asteroids found to date.

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Enhanced Taurid meteor shower lights up November skies

9 November 2015 Ade Ashford

The terrestrial fireworks of recent Bonfire Night(s) celebrations in the UK have masked a rather unusual display of natural illuminations, as we are in the midst of the Taurid meteor showers. However, this year’s display of celestial fireworks not only occurs near a new Moon for dark skies, but the double-peaked shower is currently showing signs of unusually high activity similar to the fireball-rich display of 2005.