Showing posts from October, 2009

What is a light year?

What are shepherd moons?

What does "Roche limit" (or "Roche radius") mean?

International Year of Astronomy 2009

How are Planetary Rings Formed?

Meteor hunters: Orionids on show!

What will happen to the Earth when the Sun dies?

Rocks from space news!

What could cause the human race to become extinct?

2012 - The end of the world isn't nigh!

Are some stars bigger than the Earth?

What causes meteor showers?

What is Redshift?

What are the Northern Lights?

Is the world likely to end regarding astronomical changes in 2012?

Where are the Voyager probes now, and are we still receiving information from them?

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