Santa Cruz Good Times

Thursday
May 28th
Text size
  • Increase font size
  • Default font size
  • Decrease font size

The Lunar Lowdown

 

moonSLUG REPORT > UCSC researchers unveil new theory about the moon

Pink Floyd may have sung about the dark side of the moon, but UC Santa Cruz planetary scientists have made an important new insight into the far side of the moon.

The lunar hemisphere that is permanently turned away from Earth is dramatically different from the part facing the planet. Its crust is much thicker than the near side’s, and the terrain is more jagged and varied. UCSC professor of Earth and planetary sciences Erik Asphaug explained that the new study theorizes that the moon was at some point struck by a smaller piece of matter that created the upset in the far side’s surface.

This goes along with the “giant impact” model, which puts forth the idea that the moon was originally created by the debris of a Mars-sized object striking Earth. The smaller body that later struck the moon may have been another piece of debris from the first collision.

"Our model works well with models of the moon-forming giant impact, which predict there should be massive debris left in orbit about the Earth, besides the moon itself,” said Asphaug in an Aug. 1 press release from UCSC. “It agrees with what is known about the dynamical stability of such a system, the timing of the cooling of the moon, and the ages of lunar rocks."

Ausphaug coauthored a paper with UCSC postdoctoral researcher Martin Jutzi that will appear in the Aug. 4 issue of Nature. Jutzi said in the press release that it’s no coincidence that the far side is the part with craters, but that it has to do with balance.

"The collision could have happened anywhere on the moon," he said. "The final body is lopsided and would reorient so that one side faces Earth."

The new study challenges a theory, previously put out by UCSC colleagues Ian Garrick-Bethell and Francis Nimmo, that the surface of the moon has more to do with tidal forces than anything else. In the press release, Nimmo said he still wasn’t sure what to believe, but praised Asphaug and Jutzi’s “elegant” article. He also stressed that the absolute truth is still a mystery.

"The fact that the near side of the moon looks so different to the far side has been a puzzle since the dawn of the space age, perhaps second only to the origin of the moon itself," he said. "As further spacecraft data (and, hopefully, lunar samples) are obtained, which of these two hypotheses is more nearly correct will become clear.”

 

Comments (0)Add Comment

Write comment
smaller | bigger

busy
 

Share this on your social networks

Bookmark and Share

Share this

Bookmark and Share

 

Ocean Odyssey

Sailing the high seas from Santa Cruz to French Polynesia, Sally-Christine Rodgers documents the trials, tribulations and joys of exploring the world by boat

 

Gemini Festival of Goodwill, World Invocation Day

This entire week is a preparation by the New Group of World Servers (NGWS) for the June full moon (Tuesday) and to welcome the Forces of Reconstruction, great outer planetary forces streaming into the Earth at the Gemini Solar Festival. The Gemini Festival at the June full moon is called the Festival of Goodwill and World Invocation Day (recitation of the Great Invocation, the mantram of direction for humanity, hourly around the world). During the (12 degrees) Gemini festival, the Wesak blessing of the will-to-good is released and radiated (Gemini distributes) to humanity. When the will-to-good is received, humanity is then able to radiate goodwill to each other and to the kingdoms. The Gemini Festival is the third of the Three Spring Festivals (triangle of Force), setting the spiritual template and resources for Earth for the rest of the year (‘til next spring). This festival recognizes the true spirit of humanity—aspiring toward and seeking the will of God, dedicated to right human relation. At the full moon, the Divine nature of humanity is recognized. Christ stands with humanity, leader of his people, “the Eldest in a great family of brothers” (Romans VIII, 29.) Each year at the Gemini festival, Christ preaches the last sermon of Buddha, His brother, a sermon calling forth human and spiritual unity, represented by an outflow of love (work of the Christ) and wisdom (work of the Buddha). The forces of reconstruction stream in during the Festival, ushering in an era of pronounced creative activity, rebuilding the tangible world on new creative lines. This necessitates the total destruction of the old forms no longer useful for the new world era. Everyone is invited. Join us everyone for this Festival of Goodwill by reciting the Great Invocation.

 

The New Tech Nexus

Community leaders in science and technology unite to form web-based networking program

 

Film, Times & Events: Week of May 29

Santa Cruz area movie theaters >
Sign up for Good Times weekly newsletter
Get the latest news, events

RSS Feed Burner

 Subscribe in a reader

Latest Comments

 

The Main Avant

Jozseph Schultz caters New Music Works’ 35th annual Avant Garden Party, plus brews for a cause

 

What will Santa Cruz be like in the future?

 society that is more awakened and realizes its own value and the beauty of the stunning Earth. Marguerite Clifford, Felton, Nutrition Health Care

 

Chesebro Wines

Piedras Blancas-Roussanne 2011

 

Real Thai Kitchen

Ratana Bowden on why Thai cuisine isn’t as spicy as everyone thinks