We've tracked down deals on a beloved electric toothbrush, fan-favorite water flossers, whitening strips and way more. The clock is ticking though, so snag yours fast.

Typically a two-day event, this year Prime Day sees four consecutive days of endless bargains — all of which end tonight! Today marks the first-ever Prime Day #4 (these were the best fresh deals ...

When it comes to developing resilient battery materials, engineers much look to innovations in metal chemistries and ...