Promethium is extremely rare, with only about 0.5 kg naturally occurring in Earth’s crust at any given time.
Conceptual art shows the rare earth element...
Physicists with the Potassium Decay (KDK) Collaboration have made the first direct observations of a very rare but critical decay path of potassium-40...
Sulfur and chlorine isotopes in Io’s atmosphere indicate that it has been volcanically active for the entire 4.57 billion-year history of the Solar System.
This...
Tantalum-180m (180mTa), a rare isotope of tantalum whose decay has never been observed, is expected to have a lifetime approximately 1 million times longer...
Archaeologists have dated an assemblage of ancient stone tools excavated from the archaeological site of Korolevo on the Tysa River in western Ukraine...
A team of physicists in China has synthesized two new isotopes: osmium-160 and tungsten-156.
Position of the new isotopes, osmium-160 and tungsten-156,...
Physicists using the Advanced Rare Isotope Separator (ARIS) at the Facility for Rare Isotope Beams (FRIB) have produced, separated, and identified five...
The icy dwarf planets Eris and Makemake have surfaces bearing methane ice of unknown origin. According to an analysis of data from the NASA/ESA/CSA James...
By analyzing tiny lunar zircon crystals gathered by Apollo 17 astronauts in 1972, planetary scientists recalculated the age of the Moon. Although previous...
The oxygen-28 (28O) nucleus is of particular interest as, with the Z = 8 (protons) and N = 20 (neutrons) magic numbers, it is expected in the standard...
Scientists have determined a precise lead isotopic age of the andesitic achondrite meteorite Erg Chech 002. Their result, combined with published aluminum-26-magnesium-26...
The detection of the cosmogenic isotope aluminum-26; the concentrations of nickel, cobalt, germanium and gallium; and the presence of two minerals called...
Harvard University’s Professor Avi Loeb and colleagues have discovered at least 50 tiny spherical iron fragments near the fireball path of the first...
Otodus megalodon was a gigantic megatooth shark that lived in the world’s oceans from 23 to 3.6 million years ago. It could grow to the enormous size...
In new research, scientists examined chemical properties locked inside tooth enamel of two Middle Paleolithic Neanderthals and a Magdalenian human from...
In new research, scientists from the University of Cambridge and elsewhere reconstructed changes in summer and winter rainfall from trace elements and...
The dinosaur-bird transition is among the most fascinating events in evolutionary history, but several aspects such as changes in reproductive system,...
An analysis of chromium isotopes in Martian meteorites suggests that approximately 4.5 billion years ago, there was enough water for the entire planet...
Paleoanthropologists have analyzed zinc, strontium, carbon, and oxygen isotope and trace element ratios in a fossilized Neanderthal tooth as well as animal...
Paleontologists have described a new species of the extinct otter genus Enhydriodon from fossilized teeth and bones found in the Lower Omo Valley in Ethiopia.
Reconstruction...
