The Sun uses its enormous mass to crush hydrogen into fusion, releasing enormous energy. How long will it be until we’ve got this energy source for Earth?
Today we look at what missions and technologies give us the ability to watch our world from afar.
Cheap Astronomy unpacks why everyone used to think the Sun orbits the Earth
Earth is surrounded by a huge cocoon that protects us from the dangerous cosmic radiation and particles that bombard our planet. This cocoon is Earth’s magnetic field.
