gravitational

Exciting New Paper Tests a Dark Matter And Black Hole Prediction Made by Hawking

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The Universe is too heavy. According to our measurements of the normal matter in the Universe, there’s not nearly enough of it to account for the strength of the gravitational effects we can see.   Whatever is making up the rest of the mass is nothing we can detect directly, and the quest to figure … Read more

Detector designed for gravitational waves seeks signal from dark matter | Science

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In a feat of scientific repurposing, a team of physicists has used a detector designed to sense gravitational waves—fleeting ripples in space and time set off by, for example, the collisions of two black holes—to search for something even more elusive, dark matter. Although researchers found no sign of the particular hypothetical particles they sought, … Read more

16-Year Study of Extreme Stars Has Once Again Proved Einstein Is Still Right

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Two pulsars locked in close binary orbit have once again validated predictions made by Einstein’s theory of general relativity. Over 16 years, an international team of astronomers has observed the pulsar pair, named PSR J0737−3039A/B, finding that the relativistic effects can be measured in the timing of their pulses – just as predicted and expected. … Read more