A single coin can be worth a lot of money -- a pretty penny, one might say -- if it's rare and has enough historical ...

Before you drop that 2010 quarter into a vending machine (or let it vanish into your car's cup holder forever), take a closer ...

It's present in metal alloys like sterling silver, cupronickel (copper-nickel), and bronze ... And if mines produce less copper, this means what is available will be that much more valuable. It's ...

Shares in Tesla (TSLA) rose more than 5% in pre-market trading on Wednesday after CEO Elon Musk said he was going to spend ...