Scientists in Germany using the Hubble space telescope have detected extremely strong magnetic fields in a quasar which is said to be about 4 billion light years from Earth. The magnetic fields were measured at 200 million Gauss. In comparison, the strength of the magnetic field at Earth’s surface is only about one Gauss. The scientists state that the magnetic fields are very close to the quasar’s theoretical, central black hole. However, how confident should astrophysicists be in their ideas about cosmic magnetic fields, or their belief in the existence of black holes?
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