Holiday asteroid imaged with NASA radar

The December 2018 close approach by the large, near-Earth asteroid 2003 SD220 has provided astronomers an outstanding opportunity to obtain detailed radar images of the surface and shape of the object and to improve the understanding ...

Surfer's ear points to ancient pearl divers in Panama

While examining a skull from an ancient burial ground in a pre-Columbian village in Panama, Nicole Smith-Guzmán, bioarchaeologist at the Smithsonian Tropical Research Institute (STRI), was surprised to discover an example ...

Satellite sees Tropical Cyclone Cilida north of Mauritius

Tropical Cyclone Cilida appeared as a large and powerful hurricane on imagery from NASA-NOAA's Suomi NPP satellite on Dec. 21. Cilida is located north of the island of Mauritius in the Southern Indian Ocean.

'Frozen' copper behaves as noble metal in catalysis: study

As a non-noble metal, copper oxidizes more easily to a positive valence (Cu+ or Cu2+) than same-family elements Au or Ag. In general, this chemical property is mainly determined by electron structure. Can we change the chemical ...

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