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Do black holes have a back door?

6 August 2016 Astronomy Now

The laws of physics as we know them cease to apply to black holes in their deepest regions. Large quantities of matter and energy concentrate in a gravitational singularity, where space-time curves towards infinity and all matter is destroyed. Or is it? A recent study suggests that matter might in fact survive its foray into these space objects and come out the other side.

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Einstein’s Cross under the gravitational microlens

22 December 2015 Astronomy Now

A team of Spanish astrophysicists has obtained precise measurements for the innermost region of a disc of matter in orbital motion around a supermassive black hole in the lensed quasar known as Einstein’s Cross (Q2237-0305). It constitutes the most precise set of measurements achieved to date for such a small and distant object.