Add Yahoo as a preferred source to see more of our stories on Google. Moon phases reveal the passage of time in the night sky. Some nights when we look up at the moon, it is full and bright; sometimes ...

PORTLAND, Ore. (KATU) — Ever notice the ocean suddenly creep up the shore, and then pull back hours later? About twice a day, the coast experiences two high tides and two low tides. But what makes ...

ORLANDO, Fla. – Strolling along the beach, you find seashells and seaweed left behind by the receding tides at your feet. When you gaze up at the moon, you’re looking at the primary cause for the ebb ...

A new moon draws the highest tide of the month, but this week's timing could make Hurricane Erin's impact worse. Here's when and what to know about the August new moon. Hurricane Erin has maximum ...