On July 1, 2023, Euclid, the European Space Agency's wide-angle telescope, embarked on its six-year mission to explore the dark universe. But before the spacecraft could begin surveying its ...

Researchers have found a suspected clump of dark matter lurking within the luminous halo of a well-known "Einstein ring." The ...

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Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. An Einstein ring! What at first appears to be a single, ...

“The slower growth of gravitational wells and the accelerating expansion might share the same underlying cause.” In so many words, this is what Isaac Tutusaus, author of a new study examining Dark ...

There's an optical illusion in this Hubble Space Telescope image. Credit: ESA / NASA / H. Nayyeri / L. Marchetti / J. Lowenthal When NASA's Hubble Space Telescope snapped a picture of an elliptical ...

The discovery in 1998 that the Universe is expanding faster over time shook the foundations of cosmology. This finding challenged deep-seated assumptions about how space behaves on the grandest scales ...