The terms weight and mass are often used incorrectly. Phrases like ‘a bag of sugar weighs 1 kg’ are not scientifically correct. This means that a 1 kg mass would be attracted to Earth by a force of 10 ...

As the New Horizons spacecraft is approaching Pluto, it's getting some great shots. The animation below shows Pluto and Charon as they orbit each other. When a planet (or dwarf planet) has a satellite ...

Astronomers said Thursday they had accurately calculated the mass of the Milky Way for the first time, using new data sets that include the weight of dark matter. In a collaboration between NASA and ...

Lean Body Mass (LBM) is simply an estimation of how much you weigh without the body fat – how much your bones, organs and muscles weigh. As the other factors are assumed to be relatively static, by ...

So maybe you don't think you have the "ideal body," but are you actually overweight? By calculating your body mass index (BMI), you can find out once and for all whether you should lose — or put on — ...

Academia Sinica researchers said they have calculated that a supermassive black hole in a galaxy 4 billion light-years away might contain more than 300 million times the Sun’s mass by analyzing images ...