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Carbon Road Cycling Wheel 23mm Width 38mm Clincher Sapim Spokes Racing Wheelset RUOTA MTB 26 ANTERIORE SUNRIMS SUB IV DEORE LXWM Wheel Rear 24x1.75 507x25 Aly Sl 36 Kt Cb 110mm Ss2.0sl W trim KitSchwalbe One Tyre 700c x 28mm Folding
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KNOCK  Mother bees have to do their own hunting for pollen and nectar in the Ceratina nigrolabiata species, but a male bee (shown) eager to mate with her will watch her young while she’s gone.

BLASTS FROM THE PAST  Swift, powerful bursts of charged particles emitted by the sun can be strong enough to breach Earth’s magnetosphere (blue bubble in illustration). To see how common such emissions have been in Earth’s past, scientists look for telltale data in tree rings and ice cores. 

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