Fears over supermarket shortages during the early stages of the Covid-19 pandemic led many people to buy their food from local producers, raising the prospect of a transformation in the way people get their food in the future. But while eating locally and shorter supply chains are often viewed as a more sustainable alternative to our global food system, the reality is much more complicated, explains Dr. Tessa Avermaete, a bioeconomist at the Katholieke Universiteit Leuven in Belgium.
NASA Jet Propulsion Laboratory (JPL) has published the official video of Perseverance Rover‘s first 360-degree view of Mars, and it’s amazing!
Finally, the descent and touchdown video of the Perseverance Rover fully relayed to Earth, and NASA has published it. Watch the descent and touchdown of a Mars rover, for the first time as a full video!
Soil covers all of the earth, and it’s more than just rocks and plant matter. These layers of soil are teeming with biodiversity and living organisms. Your food largely depends on the soil where it is grown. If there isn’t enough of one nutrient or the soil’s structure is failing, then the amount of food you have to choose from will decrease.
Natural ecosystems often have some of the best soil. With a proper variety of plant and animal species, our soil can constantly regenerate and produce enough microbes and nutrients to support all that lives on it.
This… is… wonderful. A blue whale drone footage published by the DolphinDroneDom channel with the title of “the best Blue Whale drone footage on YouTube”. The video actually deserves its title. A must-watch. Speakers on!
A car-sized rover touching down on another planet! NASA has published an amazing photo of the Perseverance Rover touchdown on Mars. For the first time in history, we have a photo of a rover’s touchdown on another planetary body.
Editor’s note: On Feb. 18, NASA’s Mars 2020 mission arrived at the red planet and successfully landed the Perseverance Rover on the surface. Jim Bell is a professor in the School of Earth and Space Exploration at Arizona State University and has worked on a number of Mars missions. He is the primary investigator leading a team in charge of one of the camera systems on Perseverance. We spoke with him in late January for The Conversation’s new podcast, The Conversation Weekly.
NASA’s Perseverance rover successfully landed on Mars on 18 February 2021 at 3:55 p.m. EST (20:55 UTC). A few seconds after the successful touchdown, it sent its first photo from the Martian surface.
As global emissions of greenhouse gas continue to rise, it is increasingly important for researchers and policymakers to identify exactly where and how much greenhouse gas is emitted and absorbed worldwide for global climate change mitigation. Over the past decade, Dr. Tomohiro Oda of the Universities Space Research Association (USRA) in Maryland has aimed to realize this need by combining emission data with night-time observations from satellites. Through this work, his team has now produced global maps that distinguish sources of carbon at unprecedented resolutions – high enough to identify variation across the regions where emissions are most intense: Earth’s cities.
Space lovers around the world are holding their breath for the landing of NASA’s Perseverance Rover on Mars on February 18th. After a 470.73 million kilometer (292.5 million miles) journey from Earth to Mars, Perseverance will join its fellow rovers Sojourner, Spirit, Opportunity, and Curiosity on Mars, and be part of a massive scientific endeavor to find signs of ancient life on the Martian surface.
