INTERVIEW
Description of Mary A. Voytek
Mary Voytek is a microbiologist who focuses mainly on "environmental controls on microbial transformations of nutrients, xenobiotics, and metals in freshwater and marine systems" (http://astrobiology.nasa.gov/directory/profile/4886/mary/voytek/). Mary has traveled the world studying these things. She has been to Antartica and deep sea-water sites to research her interests. She is in charge of the NASA’s Astrobiology Program, which is why she is a very reliable source.
3-5 Interview Questions
1. What is the origin of the prediction that the world will end in December 2012?
Mary Voytek: The story started with claims that Nibiru, a supposed planet discovered by the Sumerians, is headed toward Earth. Zecharia Sitchin, who wrote fiction about the ancient Mesopotamian civilization of Sumer, claimed in several books (e.g., “The Twelfth Planet”, published in 1976) that he had found and translated Sumerian documents that identify the planet Nibiru, orbiting the Sun every 3600 years. These Sumerian fables include stories of “ancient astronauts” visiting Earth from a civilization of aliens called the Anunnaki http://www.sitchiniswrong.com/. Sitchin suggested a return of Nibiru and the Anunnaki sometime this century. Then Nancy Lieder, a self-declared psychic who claims she is channeling aliens, wrote on her website Zetatalk that the inhabitants of a fictional planet around the star Zeta Reticuli warned her that the Earth was in danger from Planet X or Nibiru http://www.badastronomy.com/bad/misc/planetx/. This catastrophe was initially predicted for May 2003, but when nothing happened the doomsday date was moved forward to December 2012. Then these two fables were linked to the end of the Mayan calendar long-count at the winter solstice in 2012 – hence the predicted doomsday date on December 21, 2012.2. Why does the Mayan calendar say the world will end in 2012? I have heard that they have been pretty accurate in the past with other planetary predictions. How can you be sure you know more than they did?
Mary Voytek: Calendars exist for keeping track of the passage of time, not for predicting the future. The Mayan astronomers were clever, and they developed a very complex calendar. Ancient calendars are interesting to historians, but they cannot match the ability we have today to keep track of time, or the precision of the calendars currently in use. The main point, however, is that calendars, whether contemporary or ancient, cannot predict the future of our planet or warn of things to happen on a specific date such as 2012. To further complicate matters, scholars do not agree on when the Mayan calendar long-count turns over. There is no agreed-upon synchronization between the Mayan calendar and ours, which was imported much later from Europe. This supposedly key date in the Mayan calendar may have already happened, or it may lie decades in the future.3. When most of the planets align in 2012 and planet Earth is in the center of the Milky Way, what will the effects of this be on planet Earth? Could it cause a pole shift, and if so what could we expect?
Mary Voytek: There is no planet alignment in 2012 or any other time in the next several years. In fact, in late 2012 the planets are scattered all over the sky! As to the Earth being in the center of the Milky Way, I don’t know what this phrase means. If you are referring to the Milky Way Galaxy, we are rather far toward the edge of this spiral galaxy, some 30,000 light years from the center. We circle the galactic center in a period of 225-250 million years, always keeping approximately the same distance. Concerning a pole shift, I also don’t know what this means. If it means some sudden change in the position of the rotation axis of the Earth, then that is impossible, as noted in the answer to Question 10. What many websites do discuss is the alignment of the Earth and Sun with the center of the Milky Way in the constellation of Sagittarius. This happens every December, with no bad consequences, and there is no reason to expect 2012 to be different from any other year.4. I have heard that the Earth’s magnetic field will flip in 2012 just when the strongest level of solar storms in history is predicted to take place. Will this kill us or destroy our civilization?
Mary Voytek: Near solar maximum (which happens every 11 years approximately), there are many more sunspots, solar flares and coronal mass ejections than near solar minimum. Flares and mass ejections are no danger for humans or other life on Earth. They could endanger astronauts in deep space or on the Moon, and this is something that NASA must learn to deal with, but it is not a problem for you or me. Large outbursts can interrupt radio transmission, cause bright displays of the aurora (Northern and Southern Lights), and damage the electronics of some satellites in space. Today many satellites are designed to protect against this possibility, for example by switching off some of their more delicate circuits and going into a “safe” mode for a few hours. In extreme cases solar activity can also disrupt electrical transmissions on the ground, possibly leading to electrical blackouts, but this is rare.The last solar maximum occurred in 2001, but the subsequent solar minimum was unusual, with a period of a couple of years with almost no sunspots or other solar activity. Scientists now guess that the next maximum will in 2013 not 2012. However, the details of the solar cycle remain basically unpredictable.
You are correct that the Earth’s magnetic field protects us by creating a large region in space, called the Earth’s magnetosphere, within which most of the material ejected from the Sun is captured or deflected, but there is no reason to expect a reversal of magnetic polarity any time soon. These magnetic reversals happen only once in 400,000 years on average.
I found this post interesting because i am interested in space and the world ending so this interview was very interesting to read for me and the fact that the person you interviewed was from NASA what also very interesting.
ReplyDeletesplendid. I think you did a good job and asked all the right questions for this subject by all her answers is pretty good.
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