They have a distinctive round shape surrounded by a spiked shell. Sea urchins use their small pod feet to travel. There are ...

Digging and sifting. Twenty inches down. This must be another artillery shell fragment, he figured. Instead, Brann turned up an entire unexploded round, covered in mud and looking as ominous as ...

Boeing and defense company Nammo partnering with the US Army have set a new range record during an indirect fire test of a ramjet-powered artillery shell when a Ramjet 155-mm round was fired from ...