But when would it happen?So far, experts have managed to list more than 90 per cent of asteroids in the dino-killing range, and determined that none poses an immediate threat.A much bigger concern is the whereabouts of millions of asteroids in the 15- to 140-metre range.One such object, a 40-metre space rock, caused the largest impact in recent history when it exploded over Tunguska, Siberia, on June 30, 1908 — the date on which Asteroid Day is marked.The blast flattened some 80 million trees over 2,000 sparsely-populated square kilometres — an area bigger than greater London.Tunguska-sized events happen, on average, every 300 years or so.“Imagine that this type of asteroid would fall in a very populated area like… Paris or Germany, I mean this is something that would be really, really a catastrophe,” said Nicolas Bobrinsky, programme manager of the European Space Agency’s Space Situational Awareness project, which surveys asteroids.At least the ones it knows of.
Pia alitaka kujua kama serikali ina mpango wa kuongeza muda wa uandikishaji kutokana na muda unaotumika kuwa mchache huku changamoto zikiwa nyingi katika mchakato huo. Akijibu, Waziri wa Nchi, Ofisi ya Waziri Mkuu, Sera Uratibu na Bunge, Jenister Mhagama, alisema serikali imepokea malalamiko mengi kutoka kwa wabunge na kukemea watendaji kuwanyanyasa wananchi kuwafanya washindwe kujiandikisha katika daftari hilo. Alisema serikali inaendelea kufanyia kazi changamoto ambazo zimekuwa zikilalamikiwa na baadhi ya wabunge na wananchi. BAHI WALALAMIKIA UANDIKISHAJI KUSUASUA Wakazi wa wilaya ya Bahi, mkoani Dodoma wamelalamikia kusuasua kwa mchakato wa uandikishaji wa daftari hilo na hivyo kusababisha idadi kubwa ya watu kukosa fursa hiyo kutokana na uhaba wa BVR.