The Perigee ‘Super Moon’ On May 5-6, 2012 (NASA ScienceCast Video)

Perigee “Super Moon” On May 5-6 (NASA, May 2, 2012):

May 2, 2012: The full Moon has a reputation for trouble. It raises high tides, it makes dogs howl, it wakes you up in the middle of the night with beams of moonlight stealing through drapes. If a moonbeam wakes you up on the night of May 5th, 2012, you might want to get out of bed and take a look.  This May’s full Moon is a “super Moon,” as much as 14% bigger and 30% brighter than other full Moons of 2012.

The scientific term for the phenomenon is “perigee moon.” Full Moons vary in size because of the oval shape of the Moon’s orbit. The Moon follows an elliptical path around Earth with one side (“perigee”) about 50,000 km closer than the other (“apogee”).  Full Moons that occur on the perigee side of the Moon’s orbit seem extra big and bright.

Such is the case on May 5th at 11:34 pm Eastern Daylight Time1 when the Moon reaches perigee.  Only one minute later, the Moon will line up with Earth and the sun to become brilliantly full.  The timing is almost perfect.

ScienceCasts: The Super Moon of May 2012

YouTube

Okay, the Moon is 14% bigger than usual, but can you really tell the difference? It’s tricky. There are no rulers floating in the sky to measure lunar diameters. Hanging high overhead with no reference points to provide a sense of scale, one full Moon can seem much like any other.

Read moreThe Perigee ‘Super Moon’ On May 5-6, 2012 (NASA ScienceCast Video)

Scientists discover water on the moon is widespread, similar to Earth’s

Researchers uncover evidence of water on the inside of the moon

earth_and_moon

Researchers at the University of Tennessee, Knoxville, are once again turning what scientists thought they knew about the moon on its head.

Last fall, researchers, including Larry Taylor, a distinguished professor in the Department of Earth and Planetary Sciences, discovered “lunar dew” on the moon’s surface — absorbed “water” in the uppermost layers of lunar soil. This discovery of water debunked beliefs held since the return of the first Apollo rocks that the moon was bone-dry.

Now, scientists, including Taylor and Yang Liu, research assistant professor in the Department of Earth and Planetary Sciences, have discovered that water on the moon is more widespread — on the outside and inside of the moon — with some similarities to water in volcanic systems on Earth.

Read moreScientists discover water on the moon is widespread, similar to Earth’s