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Planetary probe meets inter-stellar space

NASA has reported that its planetary probe, Voyager 1, has just burst through the Heliosphere and has entered inter-stellar space. This is the first time in history that man has sent a machine beyond the confines of the solar system. The space inside our solar system...

Meteor showers

This article is so good, I’ve just copied it whole. Thanks to David K. Lynch. “Shooting stars”, falling stars” or meteors, call them what you like. These pinpoints of light that streak across the night sky are tiny bits of rock from space. They...

Planetary pinball

This year, in the early morning of 15th February, an asteroid, 20 metre across with a mass of 11,000 tonnes, exploded in an airburst 23 km above the southern Urals just 40 kilometres from Chelyabinsk, a city of 3.5 million people. For 5 seconds the explosion flared up...

Alien worlds

The blue skinned race of aliens that fought for their survival in the film “Avatar” lived on a moon of the gas giant Polyphemus that orbited α-Centauri A, one of the brightest stars in the southern sky. Well, in October 2012, using data from the 3.6 m telescope at La...