Europe’s leaders rallied around Ukraine as the union pledged to beef up defense spending.

Ellie Cook is a Newsweek security and defense reporter based in London, U.K. Her work focuses largely on the Russia-Ukraine war, the U.S. military, weapons systems and emerging technology. She ...

Stripes keep them cool Their stripes serve more than an aesthetic purpose. They help manage the temperature of the zebra's body. Scientists believe it is air currents that help keep the zebras ...

Zebrafish (Danio rerio) is a small freshwater fish that is an extensively studied vertebrate model organism. It can be bred rapidly in large numbers, is amenable to genetics, and has a clear ...

Credit: Michael Yada / ©A.M.P.A.S. As celebrities strutted down the Oscars red carpet, awash in the glitz and glam of Hollywood, some were sporting a more subtle accessory: blue ribbons ...