Now a Category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale, Tropical Cyclone Marcus continues to strengthen as it moves south and keeps off-shore from Western Australia. NASA's Terra satellite looked at Marcus in infrared light and saw a well-organized hurricane with a wide eye.
Radar satellite images show a large swath of Texas oil patch is heaving and sinking at alarming rates, according to a geophysical team from Southern Methodist University. Analysis of the images with oil activity data from the Texas Railroad Commission suggests decades of oil activity have destabilized localities of the 4,000-square-mile area, which is populated by small towns, roadways and a vast network of oil and gas pipelines and storage tanks.
New data confirm increased frequency of extreme weather events, European national science academies urge further action on climate change adaptation. Man-made climate change has been proven to have increased recent extreme rainfall and associated floods; coastal flooding due to sea-level rise; heatwaves in Australia, China, and Europe; and increased risks of wildfires with implications for humans and animals, the environment, and the economy. Climate proofing can help to limit these impacts.
To determine the composition of the TRAPPIST-1 planets, the team used a unique software package, developed by Unterborn and Lorenzo, that uses state-of-the-art mineral physics calculators. The software, called ExoPlex, allowed the team to combine all of the available information about the TRAPPIST-1 system, including the chemical makeup of the star, rather than being limited to just the mass and radius of individual planets.
Tropical Cyclone Marcus continues to strengthen as it moves further away from Western Australia. NASA's Aqua satellite analyzed the system in infrared light to find the strongest part of the hurricane.
NASA's Aqua satellite analyzed Tropical Cyclone Eliakim in infrared light and found warmer cloud top temperatures as wind shear continued to pummel the storm. Wind shear has elongated Eliakim and pushed precipitation south of the storm's center.
About 70,000 years ago, when the human species was already on Earth, a small reddish star approached our solar system and gravitationally disturbed comets and asteroids. Astronomers from the Complutense University of Madrid and the University of Cambridge have verified that the movement of some of these objects is still marked by that stellar encounter.
In this week's issue of Journal of Applied Physics, investigators report the discovery of a new material that may be able to directly detect dark matter. The material, known as a scintillator, should be sensitive to dark matter that is lighter than a proton. This will allow the search for dark matter to enter a largely unexplored mass range, below that of the proton.
A new particle detector design proposed at the US Department of Energy's Berkeley Lab could greatly broaden the search for dark matter -- which makes up 85 percent of the total mass of the universe yet we don't know what it's made of -- into an unexplored realm.
Tropical Cyclone Eliakim soaked the eastern coast of Madagascar as it moved in a southerly path. NASA analyzed that rainfall using data from the Global Precipitation Measurement mission or GPM core satellite. Another NASA satellite provided a current look at the storm that revealed wind shear was taking a toll on the storm.