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Hotspots in an active galactic nucleus

The nucleus of a so-called "active" galaxy contains a massive black hole that is vigorously accreting material. As a result, the nucleus often ejects bipolar jets of rapidly moving charged particles that radiate brightly ...

dateOct 24, 2016 in Astronomy
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Behind the scenes of protostellar disk formation

For a long time the formation of protostellar disks – a prerequisite to the formation of planetary system around stars – has defied theoretical astrophysicists: In a dense, collapsing cloud of gas and dust, the magnetic ...

dateJul 11, 2016 in Astronomy
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Magnetic oceans and electric Earth

Oceans might not be thought of as magnetic, but they make a tiny contribution to our planet's protective magnetic shield. Remarkably, ESA's Swarm satellites have not only measured this extremely faint field, but have also ...

dateOct 04, 2016 in Earth Sciences
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What are magnetars?

In a previous article, we crushed that idea that the Universe is perfect for life. It's not. Almost the entire Universe is a horrible and hostile place, apart from a fraction of a mostly harmless planet in a backwater corner ...

dateAug 10, 2016 in Astronomy
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