Beijing, China (SPX) Dec 31, 2020
Since CO2 has been recognized as the most important anthropogenic greenhouse gas owing to its significant impact on global warming and climate change, there have been a substantial number of studies that have focused on investigating the status of CO2 in the atmosphere in the past and present, and how it will change in the future. The United Nations Climate Change Conference (24th Conferen

Washington DC (SPX) Dec 31, 2020
In the far north, the swelling Arctic Ocean inundated vast swaths of coastal tundra and steppe ecosystems. Though the ocean water was only a few degrees above freezing, it started to thaw the permafrost beneath it, exposing billions of tons of organic matter to microbial breakdown. The decomposing organic matter began producing CO2 and CH4, two of the most important greenhouse gases. Thoug

Kourou, French Guiana (SPX) Dec 31, 2020
For its 10th and final launch of the year, Arianespace used a Soyuz rocket to orbit the CSO-2 defense and security observation satellite for the French CNES space agency (Centre National d'Etudes Spatiales) and DGA defense procurement agency (Direction generale de l'armement), on behalf of the French armed forces. With this launch, Arianespace has once again demonstrated its ability to ens

Greenbelt MD (SPX) Dec 31, 2020
Some of the best entertainment at the airport is all the action outside the window. Loaded luggage carriers zip past on their way to planes. Fuel trucks come and go. Catering trucks restock galleys. During winter, de-icing crews and snowplows add to the bustle. This organized chaos is overseen by the ground-control managers as part of an airport-wide effort to ensure the safety of all grou

Brussels, Belgium (SPX) Dec 31, 2020
The European Commission has selected a consortium of European satellite manufacturers, operators and service providers, telco operators and launch service providers to study the design, development and launch of a European-owned space-based communication system. The study will assess the feasibility of a new initiative aiming to strengthen European digital sovereignty and provide secure co

Adelphi MD (SPX) Dec 31, 2020
Multi-domain operations, the Army's future operating concept, requires autonomous agents with learning components to operate alongside the warfighter. New Army research reduces the unpredictability of current training reinforcement learning policies so that they are more practically applicable to physical systems, especially ground robots. These learning components will permit autonomous a

Chicago IL (SPX) Dec 31, 2020
There's something a little off about our theory of the universe. Almost everything fits, but there's a fly in the cosmic ointment, a particle of sand in the infinite sandwich. Some scientists think the culprit might be gravity-and that subtle ripples in the fabric of space-time could help us find the missing piece. A new paper co-authored by a University of Chicago scientist lays out how t

Washington DC (UPI) Dec 23, 2020
NASA has shown what it will look like when its Perseverance rover touches down on Mars, a challenging sequence that the agency describes as "7 minutes of terror." The Perseverance rover was launched in the summer and is scheduled to arrive on Mars in February. Once it reaches Mars' atmosphere on its way to Jezero Crater, it must slow down from its speed of 12,000 mph in a span of

La Jolla CA (SPX) Dec 31, 2020
Chemists at Scripps Research have made a discovery that supports a surprising new view of how life originated on our planet. In a study published in the chemistry journal Angewandte Chemie, they demonstrated that a simple compound called diamidophosphate (DAP), which was plausibly present on Earth before life arose, could have chemically knitted together tiny DNA building blocks called deo

Beijing (XNA) Dec 28, 2020
China sent a new remote sensing satellite into space from the Jiuquan Satellite Launch Center in northwest China at 11:44 p.m. Sunday (Beijing Time). The satellite, Yaogan-33, was launched aboard a Long March-4C rocket and entered the planned orbit successfully. It was the 357th flight mission of the Long March carrier rocket series. The mission also sent a micro and nano technology