A new purple-pink mineral that has a chemical composition and crystalline structure unlike any of the known 4,000 minerals has been discovered at a mining…Read More »
site in Western Australia, researchers report.
Now called putnisite, the mineral was discovered in a surface outcrop of Polar Bear Peninsula, Southern Lake Cowan, north of Norseman. While workers with a mining company were prospecting for nickel and gold, one of them noticed the bright-pink grains and sent the mineral to the Commonwealth Scientific and Industrial Research Organization (CSIRO), and then it was sent to Peter Elliott, a research associate with the South Australian Museum, for examination.
Credit: Echus Chasma image copyright European Space Agency.
A snapshot of a canyon in Mars and a similar structure on Earth hints that the Red Planet's geology may be very familiar to Earthlings.
The canyon in…Read More »
this image is Echus Chasma, a gash cut through a high Martian plateau called Lunae Planum. Echus Chasma is huge, stretching 62 miles (100 kilometers) and reaching about 6 miles (10 kilometers) wide. The image was taken on Sept. 25, 2005, by the high-resolution stereo camera aboard the European Space Agency's (ESA) Mars Express, according to the ESA.
The moon took a bite out of the sun in the first solar eclipse of the year on Tuesday (April 29), a celestial ballet visible from Australia that captivated…Read More »
stargazers despite cloudy weather.
Tuesday's solar eclipse was a "ring of fire" annular eclipse, but only for an uninhabited swath of Antarctica. For observers in Australia, the moon appeared to cover about 65 percent of the sun, resulting in a striking partial solar eclipse at sunset.
Mount St. Helens is nowhere near another eruption, but new magma is rising underground, heaving the volcano upward and outward by the length of a fingertip,…Read More »
researchers said here today (May 2) at the annual meeting of the Seismological Society of America.
A small amount of magma started pooling 2.5 to 3 miles (4 to 5 kilometers) beneath the volcano in 2008, said lead study author Seth Moran, a seismologist with the Cascades Volcano Observatory in Washington state. The depth comes from the pattern of surface swelling, measured with GPS, and from earthquakes triggered by the molten rock pushing upward. GPS units moved away from the center of the volcano by up to 0.5 inches (12 millimeters) between 2008 and 2013. (Imagine that Mount St. Helens' magma chamber is like a balloon inflating deep beneath the volcano, pushing everything above it out of the way as it fills with a fresh batch of molten rock.)
Credit: NASA image by Norman Kuring, NASA Ocean Color team.
A new satellite photograph of the coast of Namibia shows the ocean in full color — "dyed" green and yellow by microscopic organisms.
The green swirls…Read More »
are masses of phytoplankton, single-celled plantlike organisms that convert sunlight to energy. The growth of phytoplankton is encouraged by the winds and currents along the southwest coast of Africa, according to NASA's Earth Observatory. Winds from the East push surface waters toward the open ocean; as a result, deep ocean water rises, a process called upwelling. This cold, nutrient-rich water feeds a thriving ecosystem, the bottom rung of which is phytoplankton.
Crocodile tears may be drinks for thirsty butterflies and bees, new research reveals. The insects likely rely on croc tears for salt.
The discovery was…Read More »
made when aquatic ecologist Carlos de la Rosa was sailing on a slow, quiet boat down the Puerto Viejo River in northeastern Costa Rica with researchers, students and visitors to watch and photograph wildlife in December.
The 2014 NPI and WWF-Canon expedition is designed to study how melting sea ice is impacting polar bear hunting and denning habits. The 10-day excursion to tag polar bears with satellite tracking collars ended on April 21. The researchers will now monitor the data beamed back from the collars to see how polar bears are coping with shrinking sea ice. [Related Gallery: Polar Bears Swimming in the Arctic Ocean] Less «