The genetic material of the HIV virus is encased in multiple structures that hide it from the host immune system. The capsid, in blue, protects the virus after it enters a cell and shuttles it to the nucleus, where...
MIT scientists have determined the structure of an enzyme that is found in ocean microbes and can produce a precursor to methane.
Credit: David Born
Industrial and agricultural activities produce large amounts of methane, a greenhouse gas that contributes to global...
This is an image of hippo teeth products for sale in an ivory shop in Sheung Wan, Hong Kong.
Credit: Alexandra Andersson
Global wildlife trade is pushing many species to the brink of extinction. The Convention on International Trade in Endangered...
Purple finches, indicators of healthy coniferous habitat, are declining in the Northwest, according to data from the Klamath Bird Observatory.
Credit: J. Livaudais
Populations of many North American songbirds are declining, and in many cases we don't understand why -- for...
Cyclone Chapala over the Gulf of Aden Nov. 2, 2015.
Credit: NASA image by Jeff Schmaltz, LANCE/EOSDIS Rapid Response
Researchers from Princeton University and the National Oceanic and Atmospheric Administration (NOAA) report in the journal Nature Climate Change that extreme cyclones...
Remnant of a street in the urban centre of Kalibangan. The Ghaggar-Hakra palaeochannel can be seen in the distance.
Credit: S. Gupta (Imperial College London)
The Indus or Harappan Civilisation was a Bronze Age society that developed mainly in the northwestern...
Green florescent proteins are responsible for the bioluminescence in sea jellies.
Credit: © Glebstock / Fotolia
Nearly 75 years ago, Nobel Prize-winning physicist Erwin Schrödinger wondered if the mysterious world of quantum mechanics played a role in biology. A recent finding...
Antimatter research laboratory.
Credit: Professor Niels Madsern
Swansea University scientists working at CERN have again made a landmark finding, taking them one step closer to answering the question of why matter exists and illuminating the mysteries of the Big Bang and...
Tomato plants produce repellent chemicals called volatile organic compounds in response to herbivore attacks. (Stock image)
Credit: © slavomir pancevac / Fotolia
In sports, sometimes a player has to take one for the team. The same appears to be true in...
Of the more than 1,000 verified planets found by NASA's Kepler Space Telescope, eight are less than twice Earth-size and in their stars' habitable zone.
Credit: NASA
Planet Earth is situated in what astronomers call the Goldilocks Zone -- a sweet...
West Antarctica glaciers observed during an October 2014 NASA Operation IceBridge mission. New research shows valleys in the ocean floor enable warm, salty water to reach the undersides of glaciers, fueling their increasingly rapid retreat.
Credit: NASA / Michael Studinger
Glaciologists...
