ضرس مرصّع بحجر اليشم يكشف مهارة شعب المايا القديم في طب الأسنان
كشف تحليل جديد لضرس يعود إلى ما قبل الاستعمار، ويحتوي على حشوة من حجر "الجاديت"، أنه عولج خلال حياة صاحبه، في أول حالة موثقة من هذا النوع في ضرس خلفي لدى حضارة المايا.
Science
Damaged and Drained, Indonesia's Peatlands Go Up in Smoke
For weeks on end, parts of Indonesian Borneo have resembled an Armageddon landscape with masked residents immersed in a putrid, red-brown haze as wildfires devour peatlands near homes and farms. Burning slowly, mostly under the surface and sometimes for months on end, peatland fires are responsible for much of the dry season haze that this year has tainted air as far afield as Malaysia, Singapore and the Philippines. - What are peatlands? –
Science
Siberian Hunters Declare Open Season on Bears after Spate of Deadly Attacks
A brown bear bounds across the Siberian taiga before two hunters close in on their prey. Three shots ring out and the bear quickly drops dead in the long grass. Cradling his rifle as he rests his hand on the dead animal's fur, hunter Mikhail Kondakov says he and others have heeded requests from residents in the nearby settlement of Podtesovo after a fatal bear attack on local women. "The bear situation in the settlement is very difficult at the moment," Kondakov told Reuters.
Science
Security and sustainability in space must go hand in hand, envoy says at event in Riyadh
Security and sustainability in space must go hand in hand, envoy says at event in Riyadh