NASA finds more Earth-like planets outside solar system

Jan 7, 2015

NASA finds more Earth-like planets outside solar system

More planets that are near twins to Earth have been found outside our solar system — tantalizing worlds that could host extraterrestrial life. Astronomers announced Tuesday that, depending on definitions, they have confirmed three or four more planets that are about the same size ...

DNA shows kinship between birds of a feather

Dec 12, 2014

DNA shows kinship between birds of a feather

Scientists have unveiled the most comprehensive bird “family tree” ever devised, using genetic data from 48 species to trace how modern bird lineages arose and flourished after the mass extinction that killed off the dinosaurs. The work by researchers from 20 countries helps clarify ...

Nov 28, 2014

Courtship 'frill' helps identify new dinosaur species

A U.S. scientist has identified fossilized bones in a Canadian museum as belonging to a new species of dinosaur, saying researchers had only “scratched the surface” in terms of dinosaur diversity. Nick Longrich, a paleontologist who teaches at the University of Bath in Britain, ...

Nov 27, 2014

DNA can survive trip to suborbital space and back

DNA molecules attached to the outside of a rocket may be able survive a trip to suborbital space and back into the Earth’s atmosphere at extremely high temperatures, according to a study released Wednesday. The experiment, carried out on the TEXUS-49 rocket mission in ...

Insights on hummingbird travel, life span revealed

Nov 14, 2014

Insights on hummingbird travel, life span revealed

Hummingbirds are giving up some of their secrets. The perfecting of placing tiny numbered bands on their legs in the last decade has led researchers to discover hummingbirds can live longer than 10 years as opposed to the two or three once thought likely. ...