Related topics: galaxies · black holes · universe

Why we've got the cosmological constant all wrong

(PhysOrg.com) -- Some scientists call the cosmological constant the "worst prediction of physics." And when today’s theories give an estimated value that is about 120 orders of magnitude larger than the measured value, ...

The dark side of cosmology

It's a beautiful theory: the standard model of cosmology describes the universe using just six parameters. But it is also strange. The model predicts that dark matter and dark energy – two mysterious entities that have ...

Why Einstein was wrong about being wrong

If you want to get your mind around the research that won three astronomers the Nobel Prize in physics last week, it helps to think of the universe as a lump of dough - raisin-bread dough, to be precise - mixed, kneaded and ...

Scientists weigh in on Stephen Hawking's alien warning

Famed physicist Stephen Hawking set off chatter in late April when he posited the existence of intelligent aliens on his new TV series, "Into the Universe with Stephen Hawking" -- adding that it would be best for human beings ...

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