Previously hard to get, an astrocytes can now be grown in the billions and trillions from a single stem cell, enabling lab studies on neurological conditions.
The spread of the MIssissippi River beyond its banks in May 2011, as seen by Landsat 5. In the video, the 2011 images are contrasted with images from a year ago.
The America's Climate Choices report calls out a pressing need for immediate action to limit the magnitude of climate change and prepare to adapt to its impacts.
Planets form from a vast rotating cloud of gas, but some of these systems the have flipped orbits. The star is spinning one way and the planet is orbiting in the opposite direction.
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