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A white hole is a theoretical solution to Einstein's field equations - a region which cannot be entered at all from the outside. In a sense, therefore, they are the time-reversed opposites of black holes. The theory suggests that a black hole is connected to a white hole via a tunnel called an Einstein-Rosen bridge (wormhole). Matter falls into the black hole and is expelled via the white one. Some theorists even argue that the Big Bang itself is a white hole, gushing out matter and creating a new universe while, on the other end, invisible and unreachable, is a black hole in a totally different universe.

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White Holes review: Extreme physics from Carlo Rovelli

We all know about black holes – we've even seen a picture of one. But white holes? In his latest book, theoretical physicist Carlo Rovelli weaves a poetic spell to persuade us that these mysterious entities are real

Culture

Two beguiling books show how mathematics is revolutionising our lives

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Two beguiling books show how mathematics is revolutionising our lives

Culture

Seventh Son author Sebastian Faulks: 'I'm 3.7 per cent Neanderthal'

Video

Seventh Son author Sebastian Faulks: 'I'm 3.7 per cent Neanderthal'

Video

2KJXNKB Leipzig, Germany. 25th Nov, 2022. Participants of a demonstration of the trade union Verdi walk with flags and carry a banner with the inscription

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Blood in the Machine review: Going back to the Luddites

Culture

2G6HE5R ANNIE JUMP CANNON (1863-1941) American astronomer and suffragist. about 1920

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Her Space, Her Time review: Trailblazing women astronomers

Culture

Close-up Happy Asian girl influencer wear headphone with guitar record podcast onair online live streaming talk follower comment and audience on phone at home studio. Female podcaster, Audio podcast.

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Extremely Online review: A vital look at the creator economy

Culture

They Cloned Tyrone - BTS - John Boyega as Fontaine on the set of They Cloned Tyrone. Cr. Parrish Lewis/Netflix ?? 2023.

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�鶹��ý recommends: Children of Memory and They Cloned Tyrone

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HNCH05 January 1, 1984 - ......Nineteen Eighty-four - 007..Film and Television. (Credit Image: ? Moviestore/Entertainment Pictures via ZUMA Press)

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Julia review: A brilliant, devastating sequel to Nineteen Eighty-Four

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Author Sy Montgomery with illustrator Matt Patterson

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Of Time and Turtles review: What can we learn from turtles?

Culture

Sam Bankman-Fried

Technology

Going Infinite review: Who is Sam Bankman-Fried?

A profile of “crypto king” Sam Bankman-Fried has been rushed out as his fraud trial starts in the US. Does its author Michael Lewis get to grips with his subject?

Culture

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�鶹��ý recommends season two of Star Trek: Strange New Worlds

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Your Face Belongs to Us review: What is happening to public privacy?

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Humans

Read an extract from The Seventh Son by Sebastian Faulks

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Humans

Sebastian Faulks: ‘Homo sapiens is a very odd creature’

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