Using the Large Millimeter Telescope (LMT) in Mexico, astronomers have performed spectroscopic observations of the Swelling ...

The archbishop of Paris, Laurent Ulrich, on Dec. 8, the solemnity of the Immaculate Conception, celebrated the first Mass during which the altar of the restored cathedral was consecrated following ...

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 ...

Bits of rock fall off the cliff face, usually due to freeze-thaw weathering.