The strength of the wind has an important influence on ocean circulation. This is particularly true for extreme events such as storm fronts, tropical storms and cyclones. These weather patterns, which last from a few days to a few weeks, will change in the future due to climate change. In particular, the average energy input […]
Sahara Author: Evgenii Krestianinov, PhD candidate, Research School of Earth Sciences, Australian National University In May 2020, some unusual rocks containing distinctive greenish crystals were found in the Erg Chech sand sea, a dune-filled region of the Sahara Desert in southern Algeria. On close inspection, the rocks turned out to be from outer space: lumps […]
aerosol Author: Rubén Soussé Villa is pursuing a PhD in atmospheric chemistry at Barcelona Supercompting Center / Universitat Politècnica de Catalunya Mineral dust aerosols are microscopic rocky particles – for instance, sand – floating in the atmosphere. They are typically windblown from deserts, arid areas and agricultural lands, where they are produced from continued erosion […]
Biotechnology • Food processing • Microbiology • Planetary Science • Plant biology
Could we feed a city on Mars? This question is central to the future of space exploration and has serious repercussions on Earth too. To date, a lot of thought has gone into how astronauts eat; however, we are only beginning to produce food in space. Space launches are quite expensive. And with the growing […]
Astronomy • Biology • Evolution • Geosciences • Planetary Science
An Earth-like planet named GJ 1252b orbiting an M dwarf — the most common type of star in the universe — appears to have no atmosphere at all. This discovery could cause a major shift in the search for life on other planets. Because M-dwarfs are so ubiquitous, this discovery means a large number of […]
Somewhere between 250 million and 3 billion years ago, Venus’s temperate climate gave way to a runaway greenhouse state. New research reveals how such a scenario could well occur on Earth and possibly turn Earth into a Venus. Venus, Earth’s nearest neighbour and once-potential twin, is a hot mess. Surface temperatures average about 475 degrees […]
Pluto, the Solar System’s largest dwarf planet, just became even more interesting with a report that icy lava flows have recently covered substantial tracts of its surface. In this context, “recently” means probably no more than a billion years ago. That’s old, of course – and there is no suggestion that volcanoes are still active […]
The Mars 2020 rover mission is the next step in robotic exploration of the Red Planet. Unlike Curiosity, Mars 2020 will try to find answers to key questions about the potential for life on Mars, seeking signs of habitable conditions on Mars in the ancient past, but also searching for signs of past microbial life […]
Let’s admit it from the very beginning: Saturn is my favorite planet, I’m certainly biased when I speak of its wondrous atmospheric activity. In my defense I must ask for any rival to its giant periodic storms, polygon-shaped flows or seasonal changes. At the telescope, Jupiter may look funnier but, in the long-term, Saturn always […]
So, do you think you can tell heaven from hell? Well, David Gilmour does not believe you and, to be honest, neither do I. We use to think always about the Goldilock’s limits, within which the habitability of a system is determined strictly by its parent star distance and temperature. But, even if very useful […]