MIT researchers probe why antimatter violates the fundamental symmetry of physics

If the laws of physics are symmetrical as we think they are, then the Big Bang should have created matter and antimatter in the same amount.

Photo by Robynne Hu on Unsplash

Imagine a dust particle in a storm cloud, and you can get an idea of a neutron's insignificance compared to the magnitude of the molecule it inhabits.

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Study finds new ways of detecting dark matter in black holes

A new study proposes that Hawking radiation could be used to find dark matter in places like primordial black holes.

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  • A new paper narrowed down what type of black holes may be the best candidates for containing dark matter.
  • So far, dark matter has not been directly observed.
  • The research team also developed new techniques to spot Hawking radiation that potentially comes from black holes.
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The universe is expanding faster than estimated, finds new study

The controversy over the universe's expansion rate continues with a new, faster estimate.

Credit: Carnegie-Irvine Galaxy Survey
  • A new estimate of the expansion rate of the universe puts it at 73.3 km/sec/Mpc.
  • This is faster than the previous estimate of expansion in the early universe.
  • The discrepancy may mean fundamental theories need rethinking.
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A technique to sift out the universe’s first gravitational waves

Identifying primordial ripples would be key to understanding the conditions of the early universe.

Photo by Denis Degioanni on Unsplash

In the moments immediately following the Big Bang, the very first gravitational waves rang out.

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Are we living in a baby universe that looks like a black hole to outsiders?

Baby universes led to black holes and dark matter, proposes a new study.

Credit: Kavli IPMU
  • Researchers recently used a huge telescope in Hawaii to study primordial black holes.
  • These black holes might have formed in the early days from baby universes and may be responsible for dark matter.
  • The study also raises the possibility that our own universe may look like a black hole to outside observers.
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