How does one go about measuring the mass of an object? Mass is defined as the amount of matter an object contains. This is very different from weight, of course, as the mass of our object would remain ...

Astronomers have, for the first time, pinned down both the mass and distance of a planet that drifts through the galaxy ...

A high-tech version of a balance scale has just brought scientists a critical step closer toward a new and improved definition of the kilogram. The scale, called the NIST-4 watt balance, has conducted ...

Astronomers have used the sharp vision of NASA’s Hubble Space Telescope to repeat a century-old test of Einstein’s general theory of relativity. The Hubble team measured the mass of a white dwarf, the ...

Determining the size of an Earth-size exoplanet by the amount of starlight it blocks hundreds of light-years away once was the realm of science fiction. Measuring the mass of such a small planet based ...

Plastics packaging maker Amcor plc has agreed to assess whether it faces financial risks in using the controversial "mass balance" method for measuring recycled content in plastics packaging, after ...

Protein interactions are central to a diverse array of biological processes, but these are typically highly complex and involve the binding of multivalent ligands to several binding sites. It can, ...