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(NASA)
The dangers of a bright night are becoming more apparent.
Gene-sequencing study finds a bit of lizardlike DNA mixed with mammal.
Arizona Striped Whiptail The Arizona striped whiptail, imperiled because of habitat destruction, is one of 681 species that WildEarth Guardians filed suit against the U.S. Fish and Wildlife Service to protect. In the past two years, no U.S. plant or wildlife species has been added to the list. (Erik E. Enderson)
One conservation group says these 10 species—and 671 others—belong on the endangered list.
(NASA/ESA/STScI/M. West )
UFOs. Roswell. The planet Nibiru. An astrobiologist busts myths while seeking intelligent life.
Suzanne Critchfield, 68, with grandkids in Oakley, ID and her daughter Annette Hansen, left, look over their family history on a computer. Grandchildren Alysha, 9, Jared, 11, Bruce, 16 and Mark, 21 are seen in the back. (Kevin Horan/Aurora for USN&WR)
New services use DNA to connect relatives and track down ancestors.
Syphilis, hemophilia, and potato blight are among the ills that have changed the world.
(Charlie Archambault for USN&WR)
Researchers are shifting their attention from the virus to the study of the infected host.
Thanks to Silicon Valley's money and ideas, solar and other new technologies may finally pay off.
Software makes it possible for students to swap a scalpel for a computer mouse in the Biology lab.
(Healesville Sanctuary, Victoria, Australia)
New research proves platypus DNA is equally compiled of avian, reptilian and mammalian lineages.
(Melissa Lutz Blouin, University of Arkansas)
Evidence shows that our ancestors did not feed regularly on hard foods.
(Marscher et al., Wolfgang Steffen, Cosmovision, NRAO/AUI/NSF)
Astronomers get closest look yet at space particle accelerators.
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