Earth’s gravitational force, g, has been known for centuries. But the exact value of G, the universal gravitational constant, ...

Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our ...

The Dark Energy Spectroscopic Instrument (DESI) has completed its originally planned five-year mission and mapped more than 47 million galaxies and quasars, and will continue observations into 2028 ...

Fifteen years after Western astronomers first discovered "buckyballs" in space (soccer ball-shaped molecules that resemble a ...

After more than a decade of development, NASA’s Nancy Grace Roman Space Telescope is entering final preparations for an early ...

Two women from northeastern Wisconsin played different roles to help send future Artemis crews back to the moon.

Scientists at Oak Ridge National Laboratory are developing AI-enabled pixel detectors that can analyze particle-collision ...

NASA powers down Voyager 1 instruments to extend its life. The most distant spacecraft is now on borrowed time in ...

A decade-long effort to measure one of physics’ most fundamental constants culminates in a moment of uncertainty and revelation.

Dark matter is supposed to be everywhere, threaded through the Milky Way and outnumbering ordinary matter by a wide margin.

In the era of precision cosmology, research often means big science: large observatories, highly complex instruments, ...