Tantalum is one of the rarest elements and has multiple stable isotopes. The least abundant tantalum isotope, Ta-180 is found naturally in a long-lived excited state, a feature unique to this isotope.

University of Tennessee, Knoxville physicists and their colleagues have made critical measurements of the lifetime and decay ...

It's been seven years since a University of Hawaii telescope spotted a strange object crossing our solar system. One-quarter mile (400 meters) long and maybe ten times as long as it is wide, thus ...

A 2024 phase 1 NASA Advanced Innovations concept study will look at thin film isoptope nuclear rockets. This will enable faster probes with years of thrust capability. The years of thrust using ...

Nobel laureate Otto Hahn is credited with the discovery of nuclear fission. Fission is one of the most important discoveries of the 20th century, yet Hahn considered something else to be his best ...

Scientists have discovered a new type of uranium that is the lightest ever known. The discovery could reveal more about a weird alpha particle that gets ejected from certain radioactive elements as ...