Pre-contact Central and South American dogs (Canis familiaris) — all dogs preceding contact with European settlers — descended from a single maternal lineage that diverged after dogs entered North ...

Seaborgium is a synthetic chemical element with symbol Sg and atomic number 106. The element was first synthesized in 1974, and now has 14 isotopes; the most stable isotope, seaborgium-271, has a half ...

Using the focal-plane spectrometer of the gas-filled recoil separator at the Accelerator Laboratory of the University of Jyväskylä in Finland, physicists have observed two decay events of the new ...

The unusual radio pulses were detected by the Antarctic Impulsive Transient Antenna (ANITA) experiment, a range of instruments flown on NASA balloons high above Antarctica that are designed to detect ...

Genetic and archaeological evidence imply a second major movement of Neanderthals from Western to Central and Eastern Eurasia sometime in the Late Pleistocene. The genetic data suggest a date between ...

“Believe it or not, no one has really addressed whether it’s feasible to terraform Mars since 1991,” Dr. Lanza said. “Yet since then, we’ve made great strides in Mars science, geoengineering, launch ...