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BEIJING, July 27 (Xinhuanet) -- Amazon.com’s e-book reader Kindle 3G with special offers is now the company’s top-selling e-book device, according to media reports on Wednesday.Amazon revealed in its quarterly earnings report that the ad-supported version costs 139 U.S. dollars,  50 dollars cheaper than the comparable Kindle 3G, and costs the same as a Kindle with Wi-Fi connectivity. Many believe Kindle is the most popular dedicated e-book device on the market today.The advertisements will appear only in screensavers (which appear when the reader is in an idle state) and at the bottom of the home screen, so they don’t interrupt readers.“Since AT&T agreed to sponsor screensavers, Kindle 3G with Special Offers is now our bestselling Kindle device,” Amazon’s press release said.Having zoomed past the earlier Sony Reader, and kicked off a wave of competition including the Barnes & Noble Nook and the Kobo E-Reader, Kindle is believed the most popular dedicated e-book device on the market today.

WASHINGTON, Aug. 12 (Xinhua) -- NASA announced Friday the creation of a new directorate that will focus on both the International Space Station operations and human exploration beyond low earth orbit.The Human Exploration and Operations Mission Directorate combines the Space Operations and Exploration Systems mission directorates. While the transition and personnel assignments will take several weeks to finalize, the directorate already is supporting space station operations. It also will manage commercial crew and cargo developmental programs; construction of the Orion Multipurpose Crew Vehicle, a spacecraft designed to travel beyond low Earth orbit; development of a new heavy lift rocket, known as the Space Launch System; and other programs within the directorates."America is opening a bold new chapter in human space exploration," NASA Administrator Charles Bolden said in a statement. "By combining the resources of Space Operations and Exploration Systems, and creating the Human Exploration and Operations Mission Directorate, we are recommitting ourselves to American leadership in space for years to come."Associate Administrator Bill Gerstenmaier will head the new organization. He previously served as the associate administrator for Space Operations.

JAKARTA, Sept. 21 (Xinhua) -- Comprehensive efforts are needed to save coral reefs as their living compound is prone to environmental damage, an Indonesian expert told Xinhua in an exclusive interview on Tuesday.Nurul Dhewani Mirah Sjafrie, coordinator of Coral Reef Information and Training Center (CRITC) for western Indonesia at the Indonesian Science Institute, the government think-tank institution, said that currently only more than five percent of coral reefs in Indonesia are in "excellent condition.""Based on monitoring of the thousands of observation stations we have, the rest are in damage, bad and moderate condition," Sjafrie said in her office.She said that it is not impossible to increase the number as long as all people are aware of the importance to save coral reefs."People should be aware that coral reefs live in sea with warm enough temperature of 18-25 Celsius degree with certain level of brightness, among others. If the requirements are fulfilled, we can see coral reef growing safely," said Sjafrie.She also said it needs upstream-to-downstream arrangement to support the efforts."For example, in western Indonesia, we have many big rivers. If illegal logging practice keeps continuing, it will cause sedimentation in the sea. It means there is a decreasing quality. So, coral reef salvation is not only conducted in ocean," Sjafrie said.She also expressed concern that many people dump garbage in rivers."They throw their garbage in plastic bags. For plastic only, it takes 100 years to be completely decomposed. Let's say 10-15 percent of our people do the malpractice everyday, you can imagine how many garbage entering the sea," she said.Sjafrie said that the key to guard coral reef sustainability is in human habit."Coral reef destruction could be caused by nature such as tsunami, earthquake, crown torn (Acanthaster plancii) that consumes coral reefs. But the biggest factor is human with their destructive fishing using bombs," she said.According to Sjafrie, people do the practice with three causes, namely ignorance, needs and greed.She added that efforts have been conducted by the government, private sector and non governmental organizations (NGOs) to save coral reefs."We have a program called the CORMAP of Coral Reef Rehabilitation and Management Program. The government uses instrument of National Program of People Empowerment while NGOs do their part. If we could combine the actions, we could reach the same goal," she said.She added that the government train people to be productive by providing skills and in the same time, her organization and NGOs socialize and campaign the importance of coral reefs."When people have better jobs and activities and they are equipped with the awareness, they will do positive thing and stop destroying the sea," Sjafrie said.