Tropical Storm Erika was centered in the Eastern Caribbean Sea and affecting Puerto Rico and Hispaniola when NASA's Terra satellite passed overhead mid-day on Friday, Aug. 28, 2015.
Longer, more severe, and hotter droughts and a myriad of other threats, including diseases and more extensive and severe wildfires, are threatening to transform some of the world's temperate forests, a new study published in Science has found. Without informed management, some forests could convert to shrublands or grasslands within the coming decades.
A new solar fuel generation system, or artificial leaf, developed by researchers at JCAP safely creates fuel from sunlight and water with record-setting efficiency and stability.
NASA-NOAA's Suomi NPP satellite flew over Hurricane Jimena in the Eastern Pacific and saw the strongest thunderstorms building up quickly, especially in the northern quadrant of the storm.
Tropical Storm Kilo looks like a giant comma from space in imagery from NASA's Aqua satellite. Kilo continues to strengthen and was affecting Johnston Island as a tropical storm warning continued on Aug. 28.
Hurricane Ignacio continued to strengthen as NASA's Global Precipitation Measurement or GPM core satellite analyzed its rainfall. Ignacio is forecast to move near Hawaii over the weekend of Aug. 29 and 30.
Beach sand contains all kinds of microorganisms, including those that can harm human health. Yet current guidelines are focused exclusively on monitoring the levels of microbes in the water. Now, an international panel of scientists is recommending monitoring the sand at recreational beaches, to minimize health risks for beachgoers. Their advice is based on the general consensus reached during the international conference 'Trends in Environmental Microbiology and Public Health,' held in Lisbon, Portugal, in September 2014.
Dramatic research has shown that during pregnancy, cells of the fetus often migrate through the placenta, taking up residence in many areas of the mother's body, where their influence may benefit or undermine maternal health.
Chapman University's research on aging and skill development appears as the lead article in the latest issue of American Journal of Physical Anthropology. The study, called 'Skill Ontogeny Among Tsimane Forager-Horticulturalists,' provides the most complete analysis to date of skill development in a traditional society. The results show that most skills essential to Tsimane survival are acquired prior to first reproduction, and then develop further to meet the increasing demands of offspring.
Earth was a completely different planet more than 2.5 billion years ago. Little is known about this critical time when cratonic continental seeds formed; life emerged; and precious mineral resources concentrated. Our knowledge is limited because plate tectonic processes destroyed most of this early record. In contrast, Earth's sister, Venus -- similar in size, density, bulk composition, and distance from the Sun -- never developed plate tectonics.