This is the best summary I could come up with:

The study was submitted to the Journal of High-Energy Physics 10 days before Prof Hawking died.

In the 1980s, the Cambridge scientist, along with US physicist James Hartle developed a new idea about the beginning of the Universe.

Instead, the Hartle-Hawking idea used a different theory called quantum mechanics to explain how the Universe arose from nothingness.

As physicists analysed the idea it emerged that it carried with it the implication that the Big Bang would create not just one universe - but an endless supply.

It has solved the puzzle by drawing on new mathematical techniques developed to study another esoteric branch of physics called string theory.

Mind-bending as these ideas are, they will be of real help to physicists as they develop a more complete theory of how the Universe came into being, according to Prof Hertog.

The original article contains 637 words, the summary contains 139 words. Saved 78%. I’m a bot and I’m open source!