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Articles by Charles Q. Choi

The newly dubbed "Amazing Dragon of Lingwu" may have weighed more than 10 metric tons and boasted a dangerous "whiplash tail."

Charles Q. Choi, Contributor

Artifacts suggest that an extinct human species left Africa about 250,000 years earlier than previously thought.

Charles Q. Choi, Contributor

A new study suggests also looking for "bioessential" elements when searching for alien life.

Charles Q. Choi, Contributor

The impact that killed the dinosaurs also caused mass deforestation and sent the first tree-dwelling birds to extinction.

Charles Q. Choi, Contributor

Physicists speculate that decaying neutrons may be producing particles unknown to science that make up the elusive dark matter.

Charles Q. Choi, Contributor

New insights could improve cochlear and retinal implants.

Charles Q. Choi, Contributor

On an April weekend, engineers, designers and astronauts-in-training met to test suits for commercial, suborbital spaceflight.

Charles Q. Choi, Contributor

The noble gas can help bring atoms together.

Charles Q. Choi, Contributor

New genetic analysis suggests that major groups of fish species arose in the 10 million years after dinosaurs disappeared.

Charles Q. Choi, Contributor

Scientists propose strategies to build a larger-than-ever space telescope by sending up the mirror piece by piece.

Charles Q. Choi, Contributor