What causes the northern lights? The northern lights are caused by the interaction between the magnetic fields of the Sun and Earth. Dr Geoff Vasil, who studies the Sun’s workings at the University of Edinburgh’s School of Mathematics, explains how this creates an aurora. “The Sun is a nuclear furnace, squeezing atoms together at its heart to release energy,” Geoff explains.

What is the difference between convergent and divergent evolution? Divergent evolution is the opposite of convergent evolution. Divergent evolution occurs when two species share a common ancestor and evolve one or more characteristics that make them different to each other.

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We all know that climate change is a profound threat to life on Earth. But it's less well-known that an equally devastating biodiversity crisis is unfolding, where the numbers and variety of plants, animals and other organisms are plummeting.. The climate crisis and biodiversity loss are closely connected but the good news is, so are the solutions.

Dippy is a replica of a Diplodocus carnegii skeleton.. Diplodocus means 'double-beamed' and refers to a set of bones attached to the underside of Dippy's tail. These bones are called chevrons. In Diplodocus, the bones near the base of the tail are similar in shape to those of other dinosaurs, but in the middle of the tail they show an odd two-pronged structure that gives the …

How to identify a harlequin ladybird. Ladybirds belong to the family of beetles known as Coccinellidae, of which there are at least 3,500 species worldwide.

Dr Buck Ruxton was a GP in Lancaster who in September 1935 murdered his wife Isabella and their housemaid Mary Rogerson. To dispose of their bodies, Buck drove some 100 miles from his home, depositing them in a small ravine in a sparsely populated area in the Scottish Borders.

The UK is home to two squirrel species: the Eurasian red squirrel (Sciurus vulgaris) and the grey squirrel (Sciurus carolinensis).The species you are more likely to see scampering through the trees or ransacking your bird feeders will depend on your location, though grey squirrels, which are not native to the UK, are now far more common in most areas.

The Cretaceous Period lasted for nearly 80 million years. Discover what the climate was like in this geological period, where the continents were and what animals and plants lived on them. Find out how an asteroid ended the age of dinosaurs.

Dinosaurs dominated Earth for over 140 million years before having their reign ended by a colossal asteroid impact. Is it possible to bring these long gone reptiles back from the dead and, if we could, would we really want to?