gravitational lensing

Gravitational lensing is the phenomenon in which light from distant objects is bent by the gravitational field of intermediate objects, so as to reach us from multiple directions.

Gravitational lensing

Submitted by JH Wierenga on Mon, 09/10/2018 - 19:50
Galaxy cluster with Einstein ring

The scale factor of space is inversely proportional to the distance from the center of a galaxy. Space with a low scale factor produces stronger gravitational attraction for the same mass.

Phenomena explained: 

It is observed that gravitational lensing is far more powerful than the observable baryonic matter of the globular clusters which cause the lensing would lead us to expect.

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The expansion of the universe

Submitted by jhwierenga on Mon, 07/30/2018 - 08:01
icon of expanding balloon

The universe expands because quantum fluctuations continually produce new space quantum systems. It expands into itself locally, in such a manner that surrounding space is not directly affected.

Phenomena explained :

Galactic rotation curves: The velocity at which stars in the spiral arms of galaxies revolve around galactic cores is more or less constant, regardless of the radius.

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