Showing posts with label deep space. Show all posts
Showing posts with label deep space. Show all posts

Sunday, June 16, 2013

Stepping Stones to Our Extraterrestrial Neighbors

Astrophysics is still a very young science. Most of the theories we have about exoplanets and the potential for life on these objects is constantly changing.

For example, Europa was discovered in 1610 by Galileo. Until the 1970s, life, at least as the concept is generally understood, was believed to be entirely dependent on energy from the Sun (Europa (moon), 2013). In 2006, Robert T. Pappalardo, an assistant professor in the Laboratory for Atmospheric and Space Physics at the University of Colorado in Boulder said, “We’ve spent quite a bit of time and effort trying to understand if Mars was once a habitable environment. Europa today, probably, is a habitable environment. We need to confirm this … but Europa, potentially, has all the ingredients for life … and not just four billion years ago … but today. (Leonard, 2006)”

Recently, astronomers using NASA's Hubble Space Telescope have found compelling evidence of a planet forming 7.5 billion miles away from its star, a finding that may challenge current theories about planet formation (Space News: NASA'S Hubble uncovers evidence of farthest planet forming from its star, 2013). The planet is estimated to be relatively small, at 6 to 28 times more massive than Earth. Its wide orbit means it is moving slowly around its host star. If the suspected planet were orbiting in our solar system, it would be roughly twice Pluto's distance from the sun.

So, what does this mean for us as we scour the cosmos, seeking communication with intellegent life on other worlds? It means that we have to potentially widen our original search area.

Our search has been for planets in the “Goldilocks Zone (The Goldilocks Zone, 2003).” In a nutshell, this means that the planet has to be like earth in its distance from the Sun. Too close, it is too hot, like Venus. Too far, it is too cold, like Mars. Just right, like Earth, life develops.

Seeking contact with life existing away from Earth is just a stepping stone. Once life is found, we will learn so much that we can’t even estimate the discoveries. We might find clues to the origins of the Universe itself. We may find that the Goldilocks Zone was a faulty theory. That life does not need to evolve on Earth-like planets. Life may exist on moons like Europa.

Admittedly, Europa probably only has microbial life and that we will not be looking for communications streaming out from that moon. However, why does intelligent life have to exist like mankind? Can so called “lower” life forms also develop high levels of intelligence.

We don’t know much about the potential for even life on other planets and moons. We are currently only theorizing based upon our brief studies of the planets in our own star system. Studies that are less than 40 years old in a universe that is billions of years older.

Finding life outside of Earth is more than just communications. It is exploration and discovery. Those people who think it is just ancient astronaut theories driving us to seek life in the Universe don’t understand that we are not looking for ETs that might have visited Earth in the past or who crashed in Roswell. No, the search for life is about finding out that we are not alone, we are not unique. It is about taking another step in our journey to learn more about the Universe and consequently, learn more about ourselves.

Works Cited

The Goldilocks Zone. (2003, October 2). Retrieved June 16, 2013, from NASA Science: Science News: http://science1.nasa.gov/science-news/science-at-nasa/2003/02oct_goldilocks/

Europa (moon). (2013, June 3). Retrieved June 16, 2013, from Wikipedia: http://en.wikipedia.org/wiki/Europa_(moon)#Exploration
Space News: NASA'S Hubble uncovers evidence of farthest planet forming from its star. (2013, June 16).

Retrieved June 16, 2013, from Lake County News: http://www.lakeconews.com/index.php?option=com_content&view=article&id=31695:space-news-nasas-hubble-uncovers-evidence-of-farthest-planet-forming-from-its-star&catid=1:latest&Itemid=197

Leonard, D. (2006, February 7). Europa Mission: Lost In NASA Budget. Retrieved June 16, 2013, from Space.com: http://www.space.com/2022-europa-mission-lost-nasa-budget.html

Saturday, May 25, 2013

ET Interest from Around the World

When ET phones Earth, will s/he speak to an American? The United States is not the only country in the world with an active search for extraterrestrial (ET) intelligence. The search for extra-solar planets is not a local passion. An exo-solar planet is a planets not in our solar system.

Chinese astronomers installed the first of three Antarctic Survey Telescopes (AST3-1) at Dome Argus, located at the highest elevation on the Antarctic continent, at the beginning of 2012. One of its primary missions is to search for extra-solar planets suitable for life.

Dome A may be the best place on Earth to gaze at the Universe, says Wang. At 4,093 meters above sea level, Dome A has an extremely thin and stable atmosphere, and the pressure is only half that at sea level. The extreme cold — temperatures can drop to –80 °C — makes the air very dry and reduces background radiation when observing in the infrared. There is almost no air pollution and the long winter nights allow for four months of uninterrupted observation.

According to Lifan Wang, an astronomer at Texas A&M University in College Station, and director of the Chinese Centre for Antarctic Astronomy in Nanjing: “Antarctica has the best conditions on Earth for astronomical observation, as it has very flat ground, a transparent atmosphere and little turbulence. The ground-based telescopes here will bring us precious information from the universe.” “We will send people there to retrieve observation data. I hope we can find some likely candidates. It's hard to say precisely how many, but I hope there are no less than 10,” Wang said. “So far, humans have yet to find an exact twin of the Earth. (Chinese Astronomers Search for Alien Life, 2013)”

The Huffington Post reported that one group of UFO believers have packed their bags, tents, photo and video cameras and are on a cross-country trek in Russia, hoping to capture photographic evidence of possible alien activity. Dubbed the “Trans-Eurasian UFO-Search Expedition,” the 50 participants have been watching the skies above the southern tip of Lake Baikal, the world's oldest and deepest fresh water lake, located in southern Siberia (UFO Hunters Search For Aliens In 2-Month Expedition Across Russia, 2012).

Reuters has reported that in the next decade we will see two record-breaking telescopes come on line; the Square Kilometre Array (SKA), a huge radio telescope sited in South Africa and Australia, and Europe's Extremely Large Telescope (E-ELT) that will sit on a mountain top in Chile's Atacama desert and be the largest optical telescope ever built.

Their main task will be to probe the origins and nature of galaxies, but they will also look for signs of life on planets that can now only be seen in the roughest detail.

“I think the capabilities of new telescopes means that the detection of an ETI (extraterrestrial intelligence) is more likely in the next few decades, than it was in the last,” said Mike Garrett, general director of Astron, the Netherlands Institute for Radio Astronomy (Search for alien life about to step up a gear, 2012).

If we ever detect signs of intelligent alien life, the people likely to be on the receiving end of a cosmic signal are the scientists of SETI, aka Search for Extraterrestrial Intelligence. This loose band of a couple of dozen researchers around the world doggedly listens to the cosmos in the hope of catching alien communications. It's often in the face of scant funding and even ridicule (Alien hunters: What if ET ever phones our home?, 2012).

They watch signals coming from the world's largest radio telescopes, looking for anything unusual, or even the flashes of laser “lighthouses” designed to catch our attention.
SETI started as one man using one telescope dish in 1959. Today computers are used to sift through the cosmic radio traffic, flagging up to astronomers any potential calls from extraterrestrial life (Welcome to the SETI Institute, 2013).
You could be the one who helps contact ET. You can join in on the search without leaving home. You don’t have to live in America or near any scientific institute. You can join SETI@Home and use your computer to join other computers sifting through the “noise” from outer space, looking for the signals from an intelligent lifeform (What is SETI@Home?, 2013).

Works Cited
Alien hunters: What if ET ever phones our home? (2012, January 15). Retrieved May 25, 2013, from BBC News: Science and Environment:http://www.bbc.co.uk/news/science-environment-16273512

Search for alien life about to step up a gear. (2012, October 18). Retrieved May 25, 2013, from Reuters:http://www.reuters.com/article/2012/10/18/us-science-newplanet-aliens-idUSBRE89H16H20121018

UFO Hunters Search For Aliens In 2-Month Expedition Across Russia. (2012, August 7). Retrieved May 25, 2013, from Huffington Post Wierd News:http://www.huffingtonpost.com/2012/08/07/russia-ufo-hunters-seek-aliens_n_1739854.html

Chinese Astronomers Search for Alien Life. (2013, May 23). Retrieved May 25, 2013, from The Daily Galaxy:http://www.dailygalaxy.com/my_weblog/2013/05/chinese-astronomers-search-for-twin-earth-.html

Welcome to the SETI Institute. (2013). Retrieved from SETI Institute: http://www.seti.org/

What is SETI@Home? (2013). Retrieved from SETI@Home:http://setiathome.berkeley.edu/

Thursday, May 23, 2013

Is there proof of ET in the Bible ???


Michael Masten believes he has just found proof of E.T. existence in the Bible.   He is so convinced, he his reaching out to anyone that will listen to his story.   His new discovery is based on a hidden sequence code in the Bible creates graphs of E.T. in the Genesis. He swears this is not a joke. Michael says this video shows demonstrates his proof.  youtu.be/GvpR77qRcW4


Sunday, May 12, 2013

Should Earth Go Dark for its Own Safety????

Over the years there has been an on-going discussion about transmitting signals from earth because it may increase the chance of detection by some advanced civilization that will come and do us harm.   Below is a recent post on this topic by GEORGE DVORSKY.   Please read and post your comments.   Should we transmit?  Should earth go dark?   Why?

http://io9.com/are-we-screwing-ourselves-by-transmitting-radio-signals-493800730

Thursday, May 2, 2013

Do you need to talk to someone? How about talking with an Alien?

The presence of life on other planets has been put forth by many noted scientists. As more and more planets are discovered, the probability of some of these planets sustaining some form of life increases. As the presence of potentially living planets increases, so does the likelihood of some number of these planets supporting intelligent life. To date, there has not been any life, intelligent or not, discovered on any planet other than Earth.

While the presence of intelligent life in the universe increases with each new discovery, the fact remains that the universe is vast and our own galaxy is enormous. The sheer distance between Earth and the nearest stars are measured in light years.

The closest planet yet outside of our solar system has been found by European astronomers orbiting Alpha Centauri B, one of the three stars that make up the Alpha Centauri system, which, at 4.3 light years away, is the nearest star system past our Sun.

“This result represents a major step towards the detection of a twin Earth in the immediate vicinity of the Sun,” said Xavier Dumusque, an astronomer at the Universidade do Porto, Portugal, and the lead author of a new paper on the discovery, in a statement on Wednesday. “We live in exciting times!” (Dumusque, 2012)
“Immediate vicinity” is relative though: It would take a spacecraft like NASA’s unmanned Voyager, which is currently on the edge of the solar system, about 40,000 Earth years to reach Alpha Centauri.

The SETI project attempts to contact intelligent life on other planets, such as the one orbiting Alpha Centauri B. This is a long and tedious process since space is filled with signals from pulsars and other objects, such as black holes. Additionally, there are different sources of light with different colors all around the galaxy.

It would take 4.3 years for the communications to make it to us and another 4.3 years for our response to be received. This is very slow communication. Clearly, though we speak about radio communication, we are not talking about listening to the radio in our cars. Radio signals may not be our best form of communication, though it is the form we normally consider when thinking about SETI.

According to Brian McConnell (McConnell, 2001) Optical SETI (OSETI) looks for two types of laser signals: a pulsed beacon, or a steady, continuous signal. The laser signals sent out by intelligent aliens could be turned on and off within extremely short periods of time (billionths of a second or less). These lasers can be focused into very tight beams. The beam would outshine an entire star, if only for an instant.

Another option is to use lasers using specific color signatures. Each color could be a different meaning, much like each note in an octave has a precise vibration that gives it meaning.

The use of laser signals can also add something that radio signals cannot. Laser signals are capable of encoding several messages within one laser pulse. This can be accomplished through the use of spectra encoding.

Just like the mariners before the invention of radio, we could communicate via semaphores.  They communicate through the use of flags combined with arm movements of the flags to communicate from ship to ship without being able to come within earshot. So too will we be able to communicate with alien life through lasers. Yes it will take 4.3 years to get the message from Earth to the other planet, but with lasers we can pack more into each message.

All we need is someone to talk to. That is a matter of time based upon the number of inhabitable planets in our galaxy.

Dumusque, X. (2012, October 16). ESO for the Public > News > Press Releases. Retrieved May 1, 2013, from ESO — Reaching New Heights in Astronomy: http://www.eso.org/public/news/eso1241/

McConnell, B. (2001). Beyond Contact, A Guide to SETI and Communicating with Alien Civilizations. Sebastopol, CA, USA: O'Reilly Media.

Friday, March 16, 2012

UFO Video causes a stir

http://cosmiclog.msnbc.msn.com/_news/2012/03/15/10704801-video-from-chile-stirs-up-ufo-buzz


Tuesday, April 19, 2011

Video of possible Alien found in Russia

Have you seen this video of a possible Alien found in Russia.

http://www.youtube.com/watch?feature=player_embedded&v=bMGatrWkG2c

What do you think? Real or unreal?

Friday, May 14, 2010

Has anyone sent a message into deep space concerning our need as humans for help

Vegas Lydia sent this message to Deep Space Communications network, www.deepspacecom.net

I want to share it with our visitors and see if anyone wanted to respond. Thanks, Jim

Has anyone ever sent a message into deep space (directed at M13) concerning our need as humans for help of any kind?

Has anyone tried to send a message regarding our desire for open communication?

Have we sent for info on sustaining our natural environment?

Their views on politics? Technology? Religion?

How long they have known of our existence?

Why doesn't SETI try harder? http://www.seti.org

I believe that we as humans should be more involved with trying to communicate with them. If a grey showed up at my doorstep, I'd be talking about a whole array of issues and asking for help. Obviously they know more than we do, and it seems to me that they have no intentions of hurting us, they are curious, but I think they'd be more than willing to help or at least provide us with useful information.
Why wouldn't they want a friendly neighbor?

I appreciate your time, thanks for reading, Vegas Lydia

Any responses I receive I will forward to Vegas. Thanks again, Jim

Wednesday, January 28, 2009

What should we send out into space?

The debate of what messages we send into space is a long and old one.

Many argue we should only send Earth’s best, such as Bach or Van Gogh, but would that really be a fair representation of Earth?

Some may say that sending only the greats would more like bragging then trying to communicate.

I think if you really think about it, having Deep Space Communications Network send the movie, The Day The Earth Stood Still out into space gives a fairly accurate representation of Earth and how Earth may react to an Alien Visitor. If you don’t agree, tell me what you would send; The movie ET? Obama's last speech?