Dark energy remains mystery as Einstein

In their ongoing search for weaknesses in Einstein's theory of general relativity, scientists have found none.

In order to find evidence that the strength of gravity has changed over the course of the universe's history, physicists examined 100 million galaxies.

Despite not discovering any such fluctuations in gravity's force, the effort will benefit two upcoming space telescopes: the Euclid mission of the European Space Agency and

The Nancy Grace Roman Distance Telescope of NASA searches for variations in the gravitational field's strength over time and space.

Given the increasing precision of data, Einstein's theory of gravity is still open to question.

remarked Agnès Ferté, a team member and former postdoctoral researcher at NASA's Jet Propulsion Laboratory (JPL).

Scientists are so concerned about dark energy and the universe's speeding up expansion that they can only envisage pushing a toddler on a swing.

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