أقمار اصطناعية تتنفس الهواء.. كيف تنجو من السقوط نحو الأرض؟
تسعى أوروبا لتطوير أقمار اصطناعية تتنفس الهواء، وتدور حول الأرض كل 88 دقيقة تقريبا، مستفيدة من جزيئات الغلاف الجوي لتوليد الدفع ومقاومة الهبوط، في تقنية قد تغير مستقبل الفضاء.
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Indonesia Haze Spikes Singapore Pollution, Shuts East Timor Schools
Air pollution in part of Singapore hit the country's "very high" band on Wednesday, while East Timor shut schools, as haze from forest fires raging in Indonesia causes a regional crisis. The blazes in Indonesia have burned through hundreds of thousands of hectares of forest and plantations, sickened local residents and sent thick haze across the region. Air pollution in western Singapore on Wednesday hit "very high" -- the country's top level -- the National Environment Agency said.
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As Species Decline, Green Turtles Offer Glimmer of Hope
The palm-sized green turtle hatchling flailing through the sand on a Malaysian island may seem vulnerable, but its species has emerged as a symbol of hope for wildlife conservation. Green turtles have made the rare jump from endangered to "least concern" in global conservation rankings, a remarkable success when many species are declining. Conservation NGO World Wildlife Fund (WWF), in its biannual Living Planet Report released Thursday, found a 73-percent decline in the average size of monitored wildlife populations over 53 years.
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Eight orangutans find new forest home in Indonesia after wildfire rescue
Eight endangered orangutans were released into a protected forest in Indonesia after wildfires destroyed their habitat.