This coming Advent, Catholics throughout the English-speaking world will begin using a new translation for the prayers that we say in the Mass. This new, third edition of the Roman Missal is the ...

Mass spectrometry is an analytical technique that uses an instrument called a mass spectrometer to measure the mass-to-charge ratios of molecular ions. Molecules fragment within the mass ...

President Trump backed off of a threat he made March 11 to double the 25% tariffs on all imported steel and aluminum products in response to a Canadian retaliatory export tax on electricity, with the ...