Science from Space

We can build a blow-up tower into space - fact

Scientists say air is so good you can blow up a tower with it 15km tall and climb up to space.

Asteroid Apophis impact chance enough to worry UN

The UN will meet in February to tackle the threat of asteroids colliding with Earth, with the next major threatening event could occur in less than 20 years.

Space race heats up as XCOR slashes prices

The space tourism race is heating up, with a second company, XCOR, offering tickets for suborbital rides for $95,000 - less than half the price of competitor Virgin Galactic's.