"Of the 118 elements that make up everything—from the compounds in a chemists arsenal to consumer products on the shelf—44 will face supply limitations in the coming years. These critical elements include rare earth elements, precious metals, and even life essentials like Phosphorus. Research into more abundant alternatives, more efficient uses, recycling and recovery will help mitigate risks and move industry us towards sustainable supply chains." Via.
A while back Clear Science used the example of tellurium (Te, element 52) to illustrate how obtaining enough of a specific material can be challenging.
Robot/rover floats, wirelessly receives instructions via satellite, and basically “walks” on the underside of sea ice. NASA aims to send one to Europa.
The story of how four friends found the perfect place to hang out
and destroy each other
Wow I like weird fruits and I have only heard of three of these before. Only actually tried one-the kiwano melon. I eat those regularly.