Perseid Meteor Shower 10-13 August 2012

Fancy catching a glimpse of one of the biggest firework shows in the world? Expect to see as many as 100 meteorites per hour burn up in the Earth’s atmosphere when the annual Perseid Meteor Shower peaks on 12 August, this weekend.

Take a look at NASA’s guide to watching the Perseids below to find out what this yearly astronomical event is and how best to watch it.

What exactly is dark matter?

By measuring the motion of stars in our galaxy and others, astronomers can tell that galaxies in general contain much more mass than can be accounted for by their visible stars, gas and dust. In fact, normal, or baryonic, matter (essentially … Continued