Remnants Of Recent Supernovae Found in the Earth's Crust

Recently Australian researchers found the first ever evidence of a plutonium radioactive isotope in the Earth's crust that originally came from outer space, namely a supernova.

First ever measurements of einsteinium

Since element 99 - einsteinium - is very hard to create and it is exceptionally radioactive. A team of chemists has overcome these obstacles to report the first study characterizing some of its properties.

Radioactive elements may be key to exoplanet habitability

As it turns out, organic material, liquid water, sunlight and a large moon might not be enough to ensure an exoplanet’s habitability. It also may depend on whether enough radioactive elements are present in the planet’s core.