Alexandra Branscombe is a mathematics and science writer based in Washington D. C. A native Midwesterner, Alexandra graduated from the University of Wisconsin-Madison with degrees in biology and science communications.
Mountain rivers and streams actively reshape landscapes by eroding material from uplands and depositing it in lowlands. Scientists can now predict this transport in very steep streams.Read More »Atmospheric Sciences
The clock may be ticking for Italy's Campi Flegrei caldera, a region with a pattern of numerous and sometimes large explosive eruptions. The next explosion could be less than 100 years away.Read More »
By studying past volcanic eruptions, scientists find that the amount of water vapor reaching the stratosphere during moderately explosive eruptions may not be contributing to the greenhouse effect.Read More »