Recently by Daniel Smith

Space experts are hoping to avoid more satellite mayhem above our heads by introducing an air traffic system for orbiting chunks of metal.

Last year the dangers of the chaos around our planet was well illustrated when an American satellite collided with a Russian counterpart.

So what does a supernova sound like?

Scientists have found the gene which could be the key to looking younger or older than we really are.

Researchers from the University of Leicester and King's College London made the breakthrough as part of research into the relationships between certain diseases with biological rather than chronological age.

Earlier today saw the final night-time launch of the Space Shuttle - and, as always, it was a spectacular sight.

The Shuttle is near retirement and I've got a feeling we'll only realise what were missing after it's gone.

Flaring the gills that give the species its name, a frilled shark swims at Japan's Awashima Marine Park back in 2007.

Sightings of living frilled sharks are rare, because the fish generally remain thousands of feet beneath the water's surface.

Sir Isaac Newton is one of history's greatest scientists. But what was he like as a man?

Sixty Symbols take a look.

Pluto has finally been brought into focus thanks to the Hubble Space Telescope.

Everyone's favourite dwarf planet has been just a fuzzy dot but now a detailed look has been constructed from hundreds of images taken by the Hubble.

There's no better way to finish the week than with an amazing flying fish. Go fishy, go!

If you took a picture of the Sun at the same time each day, would it remain in the same position?

The answer is no, and the shape traced out by the Sun over the course of a year is called an analemma.

The Sun's apparent shift is caused by the Earth's motion around the Sun when combined with the tilt of the Earth's rotation axis. The Sun will appear at its highest point of the analemma during summer and at its lowest during winter.

The analemma pictured to the left was built up by Sun photographs taken from 1998 August through 1999 August from Ukraine.

Click on the image to embiggen (a bit).

Space rocks that smashed into the water just off Australia could have accelerated the demise of the Roman Empire.

That's one of the things I love about science the most - cause and effect. A cause can have the strangest effect.