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Tag Archives: spacetime

The final frontier of the Frontier Fields

Click for a full size image The last of the Frontier Fields — Abell 370 With the final observation of the distant galaxy cluster Abell 370 — some five billion light-years away — the Frontier Fields program came to an …

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Hubble helps find light-bending world with two suns

Click for a full size image This artist’s impression shows a gas giant planet circling the two red dwarf stars in the system OGLE-2007-BLG-349, located 8 000 light-years away. The planet — with a mass similar to Saturn — orbits …

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How to Find and Study a Black Hole

Artwork by Sandbox Studio, Chicago with Ana Kova Artist’s rendering of black holes in space. Click for a full size image How to Find and Study a Black Hole Imagine, somewhere in the galaxy, the corpse of a star so …

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Preparing For A Cosmological Challenge

A reconstructed image of Sgr A* for an EHT observation at 230 GHz with a seven-station array credit : Perimeter Institute For Theoretical Phisics Preparing For A Cosmological Challenge Einstein’s theory of general relativity may soon be put to the …

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Computing with time travel

If the universe allows ‘open timelike curves’, particles travelling back in time along them could help to perform currently intractable computations. Even though such curves don’t allow for interaction with anything in the past, researchers writing in npj Quantum Information …

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Is our universe a hologram

Is our universe a hologram? Credit: TU Wien Is our universe a hologram To us, the universe looks three dimensional. But one of the theories of theoretical physics challenges this assumption. The “holographic principle” suggests that a mathematical description of …

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New Light On Spinning Black Holes

New Light On Spinning Black Holes The team responsible for the Oscar-nominated visual effects at the centre of Christopher Nolan’s epic Interstellar have turned science fiction into science fact by providing new insights into the powerful effects of black holes. …

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Turbulent black holes

Artist’s rendering of a black hole. Credit: © hallowedland / Fotolia Turbulent black holes : New research at Perimeter shows that gravitational fields around black holes might eddy and swirl. Fasten your seatbelts — gravity is about to get bumpy. …

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Black Holes: So You *CAN* Divide By Zero

 “Black holes are where God (or the Flying Spaghetti monster, maybe) divided by zero.” That has to be one of my favorite math/science jokes. Surprisingly enough, weird things do happen to our equations when you work inside the event horizon …

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