Scientists set to find out is there life on mars

Scientists have been trying to find signs of life on the planet for decades and while some signs have been quite encouraging, they have not been able to find a definitive answer to the question.

This time, yet again, NASA has opened up the chapter in search for extraterrestrial life on Mars. "I'd be surprised if we landed on the surface (of Mars) and didn't find something that looked like it could have been a formerly habitable environment," said California Institute of Technology planetary scientist John Grotzinger, lead researcher for NASA's Mars Science Laboratory.

In the past, several missions have been launched to find life on Mars. A successful mission called the Viking program touched down on Mars in 1976 and found evidence of biological activity. However, those results couldn't be relied upon due to their contested results.

This new mission by NASA is termed Curiosity. It is not going to be a life-detection mission like its predecessors, rather, it is intended to chemically analyze the landing site known as Gale Crater for habitats that could have supported life.

Curiosity is going to be the fourth rover, the previous ones being Pathfinder, Spirit and Opportunity - which all probed for life and even signs of water on Mars. The findings from these previous missions provided overwhelming evidence that Mars was once a warmer and wetter place. These signs show that Mars once sported an ocean, rivers and other water bodies on its surface. The sign of water in turn points towards the sign of life on the planet.

"One of the ingredients of life is water. We're now looking to see if we can find other conditions that are necessary for life by defining habitability or what does it take in the environment to support life," said Mary Voytek, director of NASA's astrobiology program.

Curiosity will reach its destination in August, 2012.

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UFO Unidentified flying object found

Today i found something unusual, something different , i haven't seen it before,

I think this was UFO (Unidentified flying object) because i don't know what was that i can't identify it.

how do you think..?

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Natural Disaster , God Warning For The World Let's Pray Together

Whether it be earthquakes, hurricanes, volcanoes, tsunamis, fires, flooding, mud slides, Tornadoes, leads to financial, environmental or human losses. The resulting loss depends on the vulnerability of the affected population to resist the hazard. This understanding is concentrated in the formulation: "disasters occur when hazards meet vulnerability." A natural hazard will hence never result in a natural disaster in areas without vulnerability, e.g. strong earthquakes in uninhabited areas. The term natural has consequently been disputed because the events simply are not hazards or disasters without human involvement. A concrete example of the division between a natural hazard and a natural disaster is that the 1906 San Francisco earthquake was a disaster, whereas earthquakes are a hazard. 

But Today here , i said from the deeps of my heart for you all reader who believe in God that What God Says Is More Real Than What we See, I don't care what is your religion , budhism , islam , Christian or others religion, lets pray together according to our own beliefs. Let's Ask for Forgiveness , apologizing for any mistakes we may forget, because we as humans do not escape from the wrong and sins.

The truth is that God is true to the description He has given, in His quotations of Himself speaking in the Holy Scriptures: He is pleased sometimes, and displeased sometimes; and He is always pleased by direct loving obedience, person to Person. Probably the best way to learn what He would have you do now and next, is to ask Him, and expect Him to deliver an answer you can recognize, and wait for it to come.

Let's pray together for the save of mankind , save the world for our grandchild and for all human in the world. if you have faith let's pray together 
if you have god let's pray together
if you have a sense of humanity let's pray together

God Bless you All 

Ameen

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What's the Global Fire Trend?

Wildfires that have destroyed more than a thousand homes and threaten thousands more continue to rage every years. Meteorologists point out that drought and an influx of wind from Tropical Storm Lee have fanned the flames and fueled the rash of fires, the most severe Texas has experienced in recent memory.

But what do we know about the broader context of the fires? Can we say with any certainty, for example, that fires have become more common in the United States – and across the globe – in the last few decades as global temperatures have increased?

The answer to that question, I found after hunting through various journal articles and checking in with some of Goddard Space Flight Center's fire specialists, is complex. Satellites offer the most comprehensive and reliable measure of the amount of land burned each year; however, satellite-based records of fire activity are still relatively brief.

The longest fire record I’ve seen published so far, a piece of research authored by Goddard's Louis Giglio and the University of California, Irvine’s James Randerson, goes back about thirteen years, not long enough to make particularly definitive statements about the nature of long-term fire trends. (The launch of the NPOESS Preparatory Project (NPP) will help as it will carry an instrument capable of monitoring fires that should add another five-to-ten years to the long-term record.)

Still, Giglio and his colleagues have pieced together hints of trends that are worth noting. Between 1997 and 2008, they show that the number of hectares burned across the globe has declined a significant amount from a maximum in 1998 to a minimum in 2008 (see graph above). The area burned in the United States, which is less than a percent of the total area burned each year, has seen peaks in 2000 and 2007.

What’s driving the global decline in area burned? The topic is ripe for more research, but when I asked Giglio that question he reminded me that, contrary to what one might expect, increasing global temperatures and drought do not invariably produce increases in fire activity.

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Earth Picture of the Day

Nature Wallpaper

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New Planet Discovered

Image above: These time-lapse images of a newfound planet in our solar system, called 2003UB313, were taken on Oct. 21, 2003, using the Samuel Oschin Telescope at the Palomar Observatory near San Diego, Calif. The planet, circled in white, is seen moving across a field of stars. The three images were taken about 90 minutes apart.


Scientists did not discover that the object in these pictures was a planet until Jan. 8, 2005. Image credit: Samuel Oschin Telescope, Palomar Observatory

Image above: This artist's concept shows the planet catalogued as 2003UB313 at the lonely outer fringes of our solar system. Our Sun can be seen in the distance. The new planet, which is yet to be formally named, is at least as big as Pluto and about three times farther away from the Sun than Pluto. It is very cold and dark.

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our planet

The earth has a solid inner core that is surrounded by a liquid outer core. Surrounding the entire dense, metallic core is a thick, hot, convective layer called the mantle. The crust consists of many continental and oceanic plates that have slowly moved and changed positions on the globe throughout geologic time. The movement of these large plates (plate tectonics) has caused the earth’s exposed land surface to change position and shape. Tremendous forces, such as convection, tension and compression, have caused the upper crustal layers to fold and fault. Earthquakes and volcano activity have resulted along the borders of the plates. These forces, along with weathering and erosion, have caused large quantities of material to be deposited in varying amounts across the globe.

            Physical and chemical processes have constantly acted on earth material to form, change and reform three general types of rocks. These processes form minerals, which are substances that consist of certain elements to form compounds that appear to be uniform throughout. Other minerals are pure substances and are made of a single element. Each mineral has unique physical and chemical properties that allow it to be of economic value to humans. Minerals can combine to form rocks. Heat, pressure, erosion, and chemical processes can change rock from one type to another. Earth material can eventually be in the form of any of the rock types found throughout geologic history. This process is known as the rock cycle. 

            The upper-most layer of the continental crust is covered by soil. The ingredients in soils can vary from neighborhood to neighborhood and around the earth. Different soils have different properties and compositions of sand, silt, clay and humus. Soils have many properties such as texture, particle size, pH, fertility and ability to hold moisture. Depending upon the combination of properties, soils have a great variability in their ability to support structures and plant growth. Humans have continually decreased the amount of soil that is available through poor land-use methods, soil nutrients depletion, and the construction of structures that cover the soil (such as highways, parking lots and buildings). Structures that cover the soil also affect a run-off pattern, which leads to another set of problems.

            Technology such a remote sensing has allowed humans to better study the human impact on soil quality and erosional processes so that soil can be protected and preserved. Over time, remote sensing information can tell us how humans are constantly changing the surface of the earth. Technologies can also assist in finding ways to help prevent erosion. It is important that humans be stewards of the pedosphere.

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