Groups such as the Newbury Astronomical Society are eagerly awaiting Comet Ison's arrival in November 2013. It is predicated to be a once-in-a-lifetime event. Another comet called 2014 LA will be visible from the region in the Spring. Comets originate in the Oort cloud, more than a light year away.
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So how hot is it across Wales? Well official weather temperatures show we're basking in summer conditions not seen for ten years.
The Met Office has today issued a Level 3 Heatwave Alert for the South East Region
Wednesday afternoon's weather for the east of the region