SpaceA comet wagged its tail as it flew past the sun The tail of comet Erasmus swung back and forth during its closest approach to the sun, probably because of a cloud of plasma spat out during a solar storm ¿ìè¶ÌÊÓÆµ
EnvironmentAncient Europe was half covered by savannah and grazed by elephants It is widely assumed that Europe used to be covered by dense, unbroken forests, but ancient pollen shows half was grassland or light woodland ¿ìè¶ÌÊÓÆµ