Articles by Charles Q. Choi

Recent observations at high temperatures and extreme pressures tantalize, but not all experts are convinced.
Charles Q. Choi, Contributor
New research points to when massive asteroid impact happened, and why only some animals survived.
Charles Q. Choi, Contributor
Scientists found that squirrels extract nitrogen from their urea to make proteins.
Charles Q. Choi, Contributor
The aerial acrobat is less than half a millimeter long.
Charles Q. Choi, Contributor
The kunga, a highly sought-after technological advance in Mesopotamia, may be the oldest known hybrid animal bred by humans.
Charles Q. Choi, Contributor
The findings suggest current theories of how some volcanoes form may be too simple.
Charles Q. Choi, Contributor