As one of the hottest and most exotic environments on Earth, the Danakil Depression in Ethiopia is helping to redefine the conditions for life on our own planet and beyond.
Where is it?
The Danakil Depression is in north-eastern Ethiopia, near the border with Eritrea. It sits around 125m below sea level and is at the junction of three of the Earth’s lithospheric plates (Arabian, Nubian and Somalian). These plates are regions of Earth’s crust and upper mantle about 100 km thick that move across the fluid mantle of molten rock underneath. The plates are moving apart and have created a triangular feature, called the Afar Depression, of which the Danakil Depression is the northern tip and one of the deepest features. Average temperatures are thought to be 34.4 degrees Celsius and can reach more than 48 degrees Celsius, making it a candidate for the hottest place on Earth.
Until recently, the area could only be reached after a 2 day trek. Now, new roads mean that the site can be accessed in just a few hours.
Why is it interesting?
Danakil has a large number of extreme environments that form an intricate complex geological and biological setting with volcanoes, hydrothermal systems, salt flats and deposits, and extreme microbial communities. Europlanet 2020 RI, together with partners including Mekelle University and the University of Bologna, is preparing the site as a planetary analogue for access by the wider scientific community. This characterisation process includes the regional geology, geomorphology and geochemical composition, different metabolic environments in which bacterial populations could have become isolated, and the extraction of DNA from bacteria found at the site, to develop a metabolic model for the system. Scientists and geologists will be able to apply for funding from Europlanet to visit the Danakil Depression from March 2017 onwards.
Outreach and Education linked to Danakil
Europlanet is working with partners including Space Awareness, the Mekelle University and the University of Bologna to create a coordinated outreach strategy for activities related to the Danakil site. Our aim is that all visits to the site should incorporate some form of outreach activity. We are also looking to develop collaborations with teachers, schools and students in Tigray, Afar and other states in Ethiopia.
In December 2016, Europlanet 2020 RI held a workshop on Ethiopia and the Danakil Depression in Planetary Science as part of its science networking activity and co-sponsored by the International Research School of Planetary Sciences (IRSPS), Italy. The aim of the meeting was to stimulate discussion and planning for future activities around the Danakil field site, consolidate collaborations and encourage new collaborative projects across all Horizon 2020 and other research programmes. You can find out more about the workshop, participants, presentations and outcomes here.
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28 April: Digital Journal – Life on other planets? Scientists look to Ethiopia first
29 April: National Geographic Russia – Впадина Данакиль: самое странное место на Земле