The Earth’s core may be much younger than previously thought.
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Articles on Magnetic fields
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Like a piece of music, every earthquake has a coda – and it contains clues about what’s happening in our planet’s core.
The Sun gives us light, warmth and, occasionally, tans. But our star also experiences crises and storms that can have very real repercussions on everyday life.
Every few thousand years, the Sun unleashes a burst of high-energy particles that can have serious consequences for life on Earth.
The Peregrine and Nova-C landers are due to carry out valuable science at two diverse lunar locations.
Ever seen the northern lights? You have a magnetic layer in Earth’s atmosphere to thank for those beautiful displays. But the magnetosphere does a lot more than create auroras.
Measuring the ages of planets and stars is tricky. An observational astrophysicist describes the subtle clues that provide good estimates for how old different space objects are.
Studying the brief and tiny quantum effects that drive living systems could one day lead to new approaches to treatments and technologies.
Superconductors are materials that can transmit electricity without any resistance. Researchers are getting closer to creating superconducting materials that can function in everyday life.
Patients who undergo transcranial magnetic stimulation say it’s painless, with few to no side effects. The treatment isn’t yet widely accessible, but for those who use it, the effects can be profound.
Space weather can affect satellites in a number of different ways, from frying electronics to increasing drag in the atmosphere.
Migrating birds use both their view of the stars and their internal magnetic compasses to find their way over thousands of miles.
In nature, one group of bacteria produces magnetic particles to orient themselves along Earth’s magnetic field lines.
The temperature of the Sun’s surface is about 6,000°C. But higher above the surface, in the atmosphere, it suddenly shoots up to more than a million degrees!
Without a magnetic field, the Moon’s surface is exposed to solar wind. These could have been depositing resources like water and potential rocket fuel on the Moon’s surface for billions of years.
8,000 tonnes of molten iron solidifies in Earth’s inner core every second – but it’s not distributed equally.
Alfvén waves, first proposed 80 years ago, could explain why the sun’s atmosphere is so much hotter than its surface.
It has only been in the past century that weather prediction on Earth has advanced enough to work two weeks in advance. Predicting space weather, however, is only reliable an hour in advance.
Researchers have found the first Australian evidence of this global event, during which people on Earth would have witnessed a multitude of spectacular auroras.
Some birds may effectively possess an in-built, global GPS system.
Top contributors
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Associate Professor in Theoretical Geophysics, University of Leeds
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Associate Professor of Geophysics, University of Leeds
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Postdoctoral Scholar, Oregon State University
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Professor of Animal Behaviour, Bangor University
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Researcher in Physics and Astronomy, Dartmouth College
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Associate Professor, RMIT University
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Professor of Geophysics, University of Rochester
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RMIT University
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Associate Professor of Geophysics, University of Leeds
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Postdoctoral Associate in Earth and Environmental Sciences, University of Cape Town
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Pro Vice-Chancellor Flagship Initiatives, Swinburne University of Technology
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Professor in Earth Sciences, Nanyang Technological University, Singapore, and Emeritus Professor of Mineral Physics, University of Cambridge
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Professor of Marine Biology and Aquaculture, The University of Melbourne
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Senior Lecturer (Astronomy), University of Southern Queensland
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PhD student in astrophysics, University of Cambridge
