White spots appear on the teeth when the tooth’s enamel starts decomposing due to plaque. However, a wide range of cases can bring this erosion on and lead to decalcification. Here’s a quick overview ...

Dec. 18, 2024 — Scientists have spotted a massive black hole in the early universe that is 'napping' after stuffing itself with too much food. Like a bear gorging itself on salmon before ...

There are simply too many unanswered questions. "What would the deposition rate needed to cover the black spot in this time frame indicate about deposition rates? Is the E ring contributing to ...

Known as the black moon, it is the second new moon inside a calendar month when its dark side is pointed at the Earth. Unfortunately it cannot be seen, but it will give people with telescopes a ...

Here’s a CHICAGO -- The White Sox added to their left-handed bullpen mix by acquiring reliever Cam Booser from the Boston Red Sox on Dec. 21. Minor League right-hander Yhoiker Fajardo was sent to ...

Liberty Media Corp. Series C Liberty Formula One-1.06% $29.24B Liberty Media Corp. Series A Liberty Formula One-0.96% $29.24B ...

National Geographic's enterprising photographers have helped readers explore and learn about our beautiful world through their images for more than a century. Here is their best work from the past ...

There were four available playoff spots and five division titles still up for grabs in the final two weeks of the season. After two Christmas games on Wednesday and the Seattle Seahawks' "Thursday ...

With one week left in the regular season, two playoff spots are still up for grabs, and the fates of five teams will come down to their final game. After the Los Angeles Chargers, Los Angeles Rams ...