What caused this mid-air explosion over Russia more than 100 years ago?
On the morning of 30 June 1908, the sky split in two over the forest near the Podkamennaya Tunguska River in Siberia and then a mid-air explosion rocked the area. Read the rest of this entry »
As with the aurora borealis on Earth, Saturn’s polar auroras – shot here at the planet’s south pole – are generated by the collision of energetically charged particles into the planet’s upper atmosphere. Read the rest of this entry »
U-boats – or ‘unterseeboots’, which translates as ‘undersea boats’ – were a series of submarines used in both World War I and World War II. Read the rest of this entry »
A lodestone is a piece of the mineral magnetite – a highly magnetized substance – that when suspended orientates itself with the direction and polarity of Earth’s magnetic field. Read the rest of this entry »
Contrary to many historical sources, the Celtic people were – in many ways – a very civilised and advanced group of tribal societies. Read the rest of this entry »
Considered the foremost military aircraft of the Fifties, the F-86 Sabre was a highly versatile fighter jet as fast as it was lethal. Read the rest of this entry »
The military strongmen of early Medieval Europe are easy enough to name: Charlemagne, Offa, Alfred the Great, Eric Bloodaxe, Canute, William the Conqueror – the names trip off the tongue. Read the rest of this entry »
