A wearable ultrasound patch could soon be saving lives, by monitoring the blood flow in hospital patients' brains. The device is only about the size of a postage stamp plus it works continuously ...

“It looks like a postage stamp,” Zhao says. The patch is multi-layered, like a candy wafer, with two main components: an ultrasound probe which is stacked on top of a couplant, a material that ...

Doomscrolling is out. Stamp collecting is in, and these are the most valuable stamps that collectors keep showing up for.

The holiday cards she and countless others across the country will mail this year will bear the U.S. Postal Service’s 2024 “Holiday Joy” series, a set of four stamps featuring flowers and ...

Scott Trepel of Seigel Auction Galleries describes the rare "Inverted Jenny" stamp that sold for a record $2 million. A first-class U.S. postage stamp will set you back 66 cents these days ...

Postal stamps recognizing heroes of the Underground Railroad, groundbreaking space discoveries and the beauty of the U.S. will be released in 2024, the U.S. Postal Service announced. “Stamps are ...

In the White House’s East Room, first lady Melania Trump and members of the Bush family gathered to unveil a U.S postage stamp bearing the portrait of former first lady Barbara Bush.