Most Australians are enthusiastic beachgoers, and we all take for granted the waves that wash our shores. But supposing there were seas on other worlds – would they have such waves too?
In an extremely rare event, Australians will be able to see five planets in the sky at the same time – with the naked eye.
The bright string of lights in the morning sky this month is thought to be a one-in-1000-year event. Australia’s astronomer at large, Professor Fred Watson, explains why and where you can watch it.
Jupiter and Saturn meet in the sky for a great conjunction approximately once every 20 years at varying distances and we get to see that on December 21st.
Over the past 50 years space exploration has revealed that oceans exist on the moons of other planets in our Solar System. But what exactly – if anything – lives beneath the surface of these otherworldly seas?