Four astronauts will blast off to re-staff the International Space Station (ISS) next week, NASA said Friday, after an emergency medical evacuation of the previous crew.
A soft layer of white snow blankets the grounds of the Chicago Botanic Garden. The air is chilly, the sky gray.
Just four months ago, Timor-Leste formally became a member of the Association of Southeast Asian States (ASEAN). This week, the tiny country took an unprecedented step: its judicial authorities appointed a prosecutor to examine the Myanmar military's responsibility for war crimes and crimes against humanity. It's believed to be the first time an ASEAN state has taken such an action against another member.
With the departure of the research vessel Polarstern from Punta Arenas (Chile) scheduled for this weekend, the "Summer Weddell Sea Outflow Study" (SWOS) international expedition will commence. Up to early April, a multidisciplinary international research team will investigate the northwestern region of the Weddell Sea—an area of central importance for the global climate and ocean system, but one that can only be explored on site by research icebreakers such as Polarstern due to challenging sea ice conditions.
When and how quickly can ecosystems "tip" and how will they develop in the future? Researchers from the University of Potsdam, the Potsdam Institute for Climate Impact Research, and the Technical University of Munich have developed a new method for measuring how close an ecosystem is to a catastrophic tipping point. They are applying their findings to predict glacier surges, as well as rapid changes in other ecosystems. They have now published their study in Nature Communications.
