Did Venus ever have oceans?
The planet Venus can be seen as the Earth's evil twin. At first sight, it is of comparable mass and size as our home planet, similarly consists mostly of rocky material, holds some water and has an atmosphere. Yet, a closer look reveals striking diff.....»»
Global warming caused widespread ocean anoxia 93 million years ago, deep-sea sediments research suggests
Marine anoxia is characterized by the oceans being severely depleted in dissolved oxygen, making them toxic and thus having devastating impacts on the organisms inhabiting them. One such event, known as Oceanic Anoxic Event 2 (OAE2), occurred ~93.5 m.....»»
Understanding nutrient cycling between algae and bacteria could lead to increased biofuel production
The interactions between algae and bacteria are essential to the primary productivity of Earth's oceans and surface waters. Bacteria can increase the productivity of algae by producing key factors, such as vitamins, iron-chelating molecules, and grow.....»»
How waves and mixing drive coastal upwelling systems
They are among the most productive and biodiverse areas of the world's oceans: coastal upwelling regions along the eastern boundaries of the Atlantic and Pacific Oceans. There, equatorward winds cause near-surface water to move away from the coast. T.....»»
How the seabed could be a refuge for gorgonian coral forests threatened by marine heat waves
Over the last 20 years, the world's oceans have experienced a significant increase in episodes of high-sea surface temperatures, known as marine heat waves......»»
We"re heading for Venus: ESA approves EnVision
ESA's next mission to Venus was officially "adopted" today by the Agency's Science Program Committee. EnVision will study Venus from its inner core to its outer atmosphere, giving important new insight into the planet's history, geological activity a.....»»
Why Venus died
Venus is only slightly smaller than the Earth, and so has enjoyed billions of years of a warm heart. But for this planet, sometimes called Earth's sister, that heat has betrayed it. That planet is now wrapped in suffocating layers of a poisonous atmo.....»»
Marine biologist finds unexpected biodiversity on the ocean floor
Hydrothermal vents and manganese nodule fields in the deep oceans contain more biodiversity than expected, according to the thesis that NIOZ-marine biologist Coral Diaz-Recio Lorenzo will defend at Utrecht University on January 26......»»
Gravitational wave, Venus missions get European green light
The European Space Agency gave the green light to two missions on Thursday, one to detect ripples in spacetime called gravitational waves and another to probe the secrets of Earth's closest neighboring planet Venus......»»
NASA invests in new nuclear rocket concept for the future of space exploration and astrophysics
In the coming years, NASA plans to send several astrobiology missions to Venus and Mars to search for evidence of extraterrestrial life. These will occur alongside crewed missions to the moon (for the first time since the Apollo Era) and the first cr.....»»
Ocean biodiversity could be protected with green hydrogen byproduct, study shows
Climate change, warming temperatures and an increase in nutrient density in the world's oceans are causing a steady loss of oxygen in the marine environment and posing a serious threat to biodiversity......»»
Study says ice age could help predict oceans" response to global warming
A team of scientists led by a Tulane University oceanographer has found that deposits deep under the ocean floor reveal a way to measure the ocean oxygen level and its connections with carbon dioxide in the Earth's atmosphere during the last ice age,.....»»
Global warming pushes ocean temperatures off the charts: study
In 2023, the world's oceans took up an enormous amount of excess heat, enough to "boil away billions of Olympic-sized swimming pools," according to an annual report published Thursday......»»
Venus" atmospheric chemical anomalies may motivate future astrobiology missions
When scientists detected phosphine in Venus' atmosphere in 2020, it triggered renewed, animated discussions about Venus and its potential habitability. It would be weird if the detection didn't generate interest since phosphine is a potential biomark.....»»
Researchers explore the impact of microplastics and toxin exposure on goldfish
The presence of plastics in our oceans and waterbodies is one of the most significant threats to marine ecosystems. In 2022, plastic production exceeded 400 million tons globally, which continues to rise. The presence of microplastics, ranging in siz.....»»
New study suggests some forms of life could exist in Venus"s sulfuric acid clouds
A team of chemists and planetary scientists from Worcester Polytechnic Institute, Nanoplanet Consulting and MIT has found evidence that a form of life that uses sulfuric acid as a liquid medium could exist in some of the clouds covering Venus. The te.....»»
Mysterious missing component in the clouds of Venus revealed
What are the clouds of Venus made of? Scientists know it's mainly made of sulfuric acid droplets, with some water, chlorine, and iron. Their concentrations vary with height in the thick and hostile Venusian atmosphere. But until now they have been un.....»»
US Atlantic coastline is sinking, new study claims
The glaciers around our planet are slowly melting, releasing more water into the oceans. We’ve seen plenty of studies discussing what will happen if the … The post US Atlantic coastline is sinking, new study claims appeared first on BGR......»»
Daily Telescope: A crab found in the night sky rather than the world’s oceans
Oh, to have seen this supernova back in the day. Enlarge / The Crab Nebula in all its glory. (credit: Paul Macklin) Welcome to the Daily Telescope. There is a little too much darkness in this world and not enough lig.....»»
TRAPPIST-1c isn"t the exo-Venus we were hoping for, but don"t blame the star
A recent study posted to the arXiv preprint server and accepted to The Astrophysical Journal uses computer models to investigate why the exoplanet, TRAPPIST-1c, could not possess a thick carbon dioxide (CO2) atmosphere despite it receiving the same a.....»»
AI predicts the influence of microplastics on soil properties
Plastic waste and its buildup in nature has become a major environmental concern in recent times. While plastic pollution in the oceans is undoubtedly a problem, the presence of plastics in soils around the world is also known to cause severe environ.....»»