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What if the Big Bang wasn't the beginning? New research suggests it may have taken place inside a black holeWas the Big Bang really the beginning of the universe, or are we 'bouncing' between periods of expansion and contraction? A new theory makes testable predictions.
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Catastrophic collision between Milky Way and Andromeda galaxies may not happen after all, new study hintsAstronomers have long predicted that a collision between our galaxy and nearby Andromeda could be inevitable, but new calculations suggest this may be an over exaggeration.
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When will the universe die?The universe has been expanding for 13.8 billion years, but this may not go on forever. According to some theories, we may be accelerating toward a cataclysmic end.
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Ghostly galaxy without dark matter baffles astronomersAstronomers have stumbled upon yet another ghostly galaxy that appears to be devoid of dark matter, the elusive stuff that makes up most of the material universe.
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Gamma-ray bursts reveal largest structure in the universe is bigger and closer to Earth than we knew: 'The jury is still out on what it all means.'New research suggests that the largest cosmic structure is even bigger and closer to Earth than we knew. It goes against scientists' models of cosmic evolution.
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Universe may revolve once every 500 billion years — and that could solve a problem that threatened to break cosmologyA slowly spinning universe could resolve a puzzle in physics known as the Hubble tension, a new model suggests.
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The universe's 'missing matter' may have finally been foundAbout half of the non-dark matter in the universe cannot be accounted for by stars and galaxies alone. Now, scientists say previously undetected clouds of hydrogen gas could finally reveal it.
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Rare quadruple supernova on our 'cosmic doorstep' will shine brighter than the moon when it blows up in 23 billion yearsA pair of white dwarfs, located just 150 light-years from Earth, appears doomed to die in a type 1a supernova that will shine brighter than anything currently visible in the night sky. But humanity — and our planet — will be long gone before this happens.
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Scientists discover smallest galaxy ever seen: 'It's like having a perfectly functional human being that's the size of a grain of rice'Astronomers have discovered the smallest dwarf galaxy ever seen. It is a mystery how the satellite galaxy of Andromeda survived the blistering conditions of the early universe.
