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Gravitational lenses measure universe expansion – Phys.org
It’s one of the big cosmology debates: The universe is expanding, but how fast exactly? Two available measurements yield different results. Leiden physicist David…
It’s one of the big cosmology debates: The universe is expanding, but how fast exactly? Two available measurements yield different results. Leiden physicist David Harvey adapted an independent third measurement method using the light warping properties of galaxies predicted by Einstein. He published his findings in the Monthly Notices of the Royal Astronomical Society.
We’ve known for almost a century about the expansion of the universe. Astronomers noted that the light from faraway galaxies have…
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