Magnets in the sky
Stars, planets and galaxies are all
magnetic. This "cosmic magnetism" play a vital role in controlling how stars and
galaxies form, age and evolve. Closer to home, these naturally occurring
magnetic fields drive the evolution of species, protect the Earth from harmful
particles, and are vital for the navigation of birds and other animals.
Professor Bryan Gaensler will open the
window for you to the magnetic Universe. He will explain how we detect and study
magnets in space, even though magnetic fields are invisible even to the largest
telescopes. In the next few years, we will finally be able to start
understanding what creates astrophysical magnets, what role they play in the
Universe's evolution, and how they have maintained their strength over billions
of years of cosmic time.