Our galactic center teems with gamma-ray sources, from interacting binary systems and isolated pulsars to supernova remnants and particles colliding with interstellar gas. It’s also where astronomers expect to find the galaxy’s highest density of dark matter, which only affects normal…
There are several candidates for extraterrestrial life in our solar system. Moons such as Europa and Titan seem the likeliest targets so far, but Saturn’s moon Enceladus has today been bumped to the top of the list due to the discovery of a liquid water ocean below the icy surface. This…
Image SP4493 (Ebola Virus, Molecular Model) Molecular model showing the structure of an ebola virus. It consists of a ribonucleic acid (RNA) genome (orange) within a protein nucleocapsid (white blobs), which is surrounded by a glycoprotein envelope (smooth white). This virus is the cause of Ebola hemorrhagic fever in humans and non-human primates. It is a severe and often fatal disease with symptoms including fever, fatigue, muscle aches, vomiting, diarrhea and hemorrhaging (internal bleeding). There is no cure for the disease, but three quarters of patients can recover of provided with sufficient medical support.
The Ministry of Health of Guinea has notified the WHO (World Health Organization) of a rapidly evolving outbreak of Ebola virus disease in forested areas of south-eastern Guinea. In humans, Ebola has a fatality rate of up to 90%. A total of 122 patients are suspected of contracting the virus and 78 have died so far. In the absence of any effective treatment, WHO seeks to raise awareness of the risk factors for infection and the protective measures that individuals can take in order to reduce human infection and death. WHO has brought in 3.5 tons of protective material to Guinea to support the Ministry of Health’s response to this alarming outbreak.
© Ramón Andrade, 3Dciencia / Science Source
Meet Dimorphodon, the toothy pterosaur.
Discovered in the 1820s on the coast of southern England, by a young woman, Mary Anning, famed for her fossil-finding abilities, Dimorphodon earned its names for its distinctive dentition. Dimorphodon, the genus name, means “two-formed tooth” and refers to the animal’s two types of teeth: Long, curved fangs that jut from the front of the jaws, and a row of short pointed teeth that lies behind.