Using a pair of meter-long, vibrating metal beams, scientists have made a new measurement of “Big G,” also known as Newton’s gravitational constant, researchers report July 11 in Nature Physics. The technique could help physicists get a better handle on the poorly measured constant.
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Maryna Viazovska, a Ukrainian who is now a professor at the Swiss Federal Institute of Technology in Lausanne, is known for proofs for higher-dimensional equivalents of the stacking of equal- sized spheres. She is also only the second woman ever to win the Fields Medal.
With a new host of questions, CERN plans to restart the particle accelerator this month to possibly better understand cosmic unknowns like dark matter.
After a three-year shutdown for repairs and upgrades, the collider has resumed shooting protons around its 17-mile electromagnetic underground racetrack. In early July, the collider will begin crashing these particles together to create sparks of primordial energy.
The observations from the European Space Agency’s Gaia probe cover almost two billion stars — about 1 percent of the total number in the galaxy — and are allowing astronomers to reconstruct our home galaxy’s structure and find out how it has evolved over billions of years.
NASA’s effort will be led by Simons Foundation President David Spergel and Daniel Evans of NASA’s science mission directorate, and would examine observations of events that cannot be identified as aircraft or known natural phenomena.
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