If you ever get nervous about missile attacks, they're actually a lot harder to make than you might think. To hopefully put your mind more at ease, Hank is here to talk about the work that goes into designing and building ICBMs in this...

In October 2010, a neutron star near the center of the Milky Way emitted hundreds of X-ray bursts triggered by thermonuclear explosions on the star's surface. NASA's Rossi X-ray Timing Explorer, or RXTE, observed some 400 such events...

What are the properties of Alkali metals? What is ionic bonding? What are the most reactive elements of Alkali? What is known about Lithium? Why is Lithium the least reactive? What can Lithium be alloyed with?

Periodic Table of...

In 1954, the US Government conducted a series of secret nuclear tests in the Marshall Islands. The idyllic coral island Bikini Atoll became the epicentre of the largest nuclear test disaster in US history. The affects of radiation...

At the start of the 20th century scientists had a good estimate of how old the Earth was. At least several billion years of age. This led to the tricky question as to how the Sun not only generated heat and light, but how it had done...