Our ideas about the universe are based on a century-old simplification known as the cosmological principle. It suggests that when averaged on large scales, the Cosmos is homogeneous and matter is distributed evenly throughout.
Astronomy
Jun 29, 2023
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The European Space Agency's (Esa) Euclid mission will launch into space on a Falcon9 rocket from SpaceX on July 1, or soon after. Many of us who have worked on it will be in Florida to watch the nail-biting event.
Astronomy
Jun 28, 2023
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32
Isaac Newton formulated his theory of gravity as an action at a distance: a planet instantly feels the influence of another celestial body, no matter the distance between them. This characteristic motivated Albert Einstein ...
Astronomy
Jun 27, 2023
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Theoretical physicists have long been trying to devise a complete theory of gravity that would also account for quantum mechanics phenomena, as existing models do not. Such a theory could collectively explain the many intricate ...
A joint research group led by Prof. Sheng Dong and Prof. Lu Zhengtian from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), investigated the coupling effect between neutron ...
Quantum Physics
Jun 16, 2023
6
857
In a study published in Nature Astronomy, a team of researchers from the University of Naples "Federico II," the University of Wroclaw, and the University of Bergen examined a quantum-gravity model of particle propagation ...
Astronomy
Jun 12, 2023
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551
New hazard-monitoring technology uses GPS signals to go wave-hunting in the Pacific Ring of Fire. GUARDIAN's long-term objective is to augment early warning systems.
Earth Sciences
May 31, 2023
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94
A quartet of space scientists, two from Carnegie Mellon University and two from Harvard University, has found via simulations that it should be possible for interstellar objects to be captured by Earth's gravity. The team, ...
Albert Einstein's general theory of relativity describes how the fabric of space and time, or spacetime, is curved in response to mass. Our sun, for example, warps space around us such that planet Earth rolls around the sun ...
Astronomy
May 25, 2023
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443
The first instrument to directly measure gravity on the surface of an asteroid has undergone testing in ESA's Mechanical Systems Laboratory.
Space Exploration
May 22, 2023
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