These are cardiomyocytes, green, proliferating in a mouse heart after gel injection.
Credit: University of Pennsylvania
In mammals, including humans, the cells that contract the heart muscle and enable it to beat do not regenerate after injury. After a heart attack,...
Models used by the Intergovernmental Panel on Climate Change may be underestimating future warming.
Credit: © f9photos / Fotolia
The climate models that project greater amounts of warming this century are the ones that best align with observations of the current...
Antarctica.
Credit: Dave Pape, Public Domain
It's official: East Antarctica is pushing West Antarctica around.
Now that West Antarctica is losing weight--that is, billions of tons of ice per year--its softer mantle rock is being nudged westward by the harder mantle...
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 image shows a false-colored electron microscope image of the University of Minnesota device. The blue area marks the topological insulator on top of the optical waveguide in red.
Credit: University of Minnesota
Light can generate an electrical current in semiconductor...
Earth has a new lightning capital, according to a recent study using observations from the Lightning Imaging Sensor onboard NASA's Tropical Rainfall Measurement Mission.
Lake Maracaibo in Venezuela earned the top spot receiving an average rate of about 233 flashes...
Molecular model (stock image).
Credit: © alice_photo / Fotolia
Protein assemblies, designed and built from scratch to carry molecular cargo, are advancing both synthetic life research and engineering efforts for targeted drug delivery.
Scientists have succeeded in developing the...
Spacecraft Cassini with an instrument from the Swedish Institute of Space Physics on board (in red circle) passed through Saturn’s atmosphere.
Credit: Artist’s impression: NASA
A Langmuir probe, developed in Sweden and flown to Saturn on the Cassini spacecraft, has made...
Concentrations of repetitive loss properties in Florida are shown in this map. Researchers identified sites where government buyouts and remediation projects can achieve social, environmental, and economic benefits.
Credit: J. Calil and S. Newkirk
A study of flood damage in Florida...
Reconstruction of Halszkaraptor escuilliei. This small dinosaur was a close relative of Velociraptor, but in both body shape and inferred lifestyle it much closely recalls some waterbirds like modern swans.
Credit: Lukas Panzarin; and Andrea Cau for scientific supervision
An exceptionally...
Generosity makes people happier, even if they are only a little generous, suggests new research.
Credit: © MG / Fotolia
Generosity makes people happier, even if they are only a little generous. People who act solely out of self-interest are less...
