The interstellar comet 3I/ATLAS has been confounding scientists since it began unexpectedly accelerating, but the cause ...

Create a Physics World account to get access to all available digital issues of the monthly magazine. Your Physics World account is sep ...

The search for quantum gravity is the next big step in physics, as researchers seek to unify the physics of the very small ...

On Nov. 2, Kip Thorne took the stage at Harvey Mudd College’s Galileo Auditorium to recount his 50 year odyssey of making ...

As New Horizons passed Pluto in July 2015, did the dwarf planet alter the probe's trajectory? Douglas KaupaCouncil Bluffs, Iowa Pluto did in fact both bend and accelerate the trajectory of New ...

All fundamental forces operating on astronomical scales exhibit a decrease in strength with increasing distance. A hypothetical force, decreasing with distance slower than the inverse square law, ...

In a breakthrough discovery that challenges the conventional understanding of cosmology, scientists have unearthed new evidence that could reshape our perception of the cosmos. New research shows that ...

A new physics paper takes a step toward creating a long-sought "theory of everything" by uniting gravity with the quantum world. However, the new theory remains far from being proven observationally.

The motion of the booster, named 2020 SO, is primarily driven by the gravity of the Sun and Earth. Prior to 2019, the booster was orbiting the Sun with an orbit similar to Earth’s, but moving at a ...

The prevailing assumption has been that Einstein's theory of gravity must be modified, or 'quantized', in order to fit within quantum theory. This is the approach of two leading candidates for a ...

Quanta Magazine: Stacy McGaugh, professor and chair of the Department of Astronomy in the College of Arts and Sciences, discussed an alternative theory of gravity—a tweaked version of Einstein’s ...