Piezofluorochromism, the phenomenon of materials reversibly changing their fluorescent color when pressure is applied, is ...

CES 2026 doesn't officially start until Tuesday, but Mashable is already reporting live from Las Vegas, where the festivities have kicked off early at CES Unveiled. This preview event offers a first ...

The U.S. Postal Service is making new changes in 2026, including adjustments to the postmark process, which could result in late fees and penalties for anyone mailing time-sensitive documents such as ...

When most people drop mail off at a mailbox or at a post office, they assume it is postmarked that same day. But according to a new rule from the United States Postal Service, that’s not the case ...

In the original, and best Total Recall, you may remember a scene in which Rekall’s receptionist changes her nail polish by using a digital pen. Now, after only 35 years, a company came to CES 2026 ...