From the Big Bang to the Present: Gravity Is Why the Universe Is So Uniform
The temporal evolution of the universe, from the Big Bang to the present, is described by Einstein’s field equations of general relativity. However, there are…
Gravity
Witnessing the Birth of Baby Universes 46 Times: Space Is Information Encoded in a Lower-Dimensional Boundary?
How did the universe begin? How does quantum mechanics, the study of the smallest things relate to gravity and the study of big things? These…
Gravity Mysteries – We May Have Had Fundamental Nature of the Universe Wrong This Whole Time
Symmetry has been one of the guiding principles in physicists’ search for fundamental laws of nature. What does it mean that laws of nature have…
Precision Measurements of Gravity by Trapping Atoms in a Laser Beam – Could Test General Relativity and Fundamental Physics
Trapped atoms, suspended aloft on a lattice of laser light for as long as 20 seconds, allow for highly sensitive measurements of gravity, according to…
Chameleon Theory Could Change How Scientists Think About Gravity
Einstein’s theory of General Relativity is world famous – but it might not be the only way to explain how gravity works and how galaxies…
Physicists Use Atom Interferometry to Directly Measure Gravity’s Curvature
A newly published study details how a team of physicists simultaneously measured gravity with cold atoms at three different heights to achieve the first direct…
GRAIL Data Helps Solve Mystery of Moon’s Uneven Surface Gravity
By combining GRAIL gravity data with computer models of large asteroid impacts and known details about the geologic evolution of impact craters, scientists were able…
Astrophysicists Zero In on How the Universe Responds to Gravity
Astrophysicists are getting closer to understanding the unexplained force that influences the laws of gravity throughout space. Newly published findings narrow down the possibilities of…