Astronomers recently discovered an enormous cosmic bubble packed with galaxies that stretches nearly 1 billion light-years across and seems to be an ancient vestige from the infant universe. Named ...

What lies beyond all we can see? The question may seem unanswerable. Nevertheless, some cosmologists have a response: Our universe is a swelling bubble. Outside it, more bubble universes exist, all ...

Uppsala University researchers have devised a new model for the universe – one that may solve the enigma of dark energy. Their new article, published in Physical Review Letters, proposes a new ...

A staple of Hollywood storytelling, the concept of the multiverse has its roots in serious scientific study. One catch: we don’t know for sure if it exists. However, that explanation gives you a very ...

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(via Sabine Hossenfelder) I recently saw a new paper that claims our observations could be better explained if the universe was surrounded by a shell. According to the author, that could do away with ...

If we were but one bubble universe among many, how would we know? Look for evidence of the bubbles bouncing off one another.

The theory that our universe is contained inside a bubble, and that multiple alternative universes exist inside their own bubbles – making up the ‘multiverse’ – is, for the first time, being tested by ...