This year marks the first public demonstration of ROGUE-Fires, which can fire the Multiple Launch Rocket System (MLRS) Family ...

This snowmobile features an optional Rotax 850 E-Tec Turbo R with water-cooling and a redesigned suspension for better ...

Fusion has long been the propulsion end-goal for interplanetary travel, and a U.K.-based company thinks on its way to ...

Emily Ford prepares to feed her dogs at a checkpoint in Nenana, Alaska, 52 miles into the Iditarod. (Provided by Anna Hennessy) ...

(AP Photo/Evgeniy Maloletka, File) Gert Ignatiussen, winner of Greenland’s annual amateur mineral hunt, throws a chunk of seal meat to one of his sled dogs in Tasiilaq, an Inuit town on the southeast ...

A newly released video provides the first glimpse of Sunbird in action, illustrating how these fusion-powered craft can attach to large space vehicles and tow them vast distances. Pulsar Fusion ...

A newly released video provides the first glimpse of Sunbird in action, illustrating how these fusion-powered craft can attach to large space vehicles and tow them vast distances. Pulsar Fusion has a ...

The spaceplane will take off using a rocket-powered rail sled, which is about two miles long. This sled – which would sit on top of a runway – accelerates the Radian One to 537mph. But the craft will ...

The spaceplane will take off using a rocket-powered rail sled, which is about two miles long. This sled – which would sit on top of a runway – accelerates the Radian One to 537mph. But the ...

(AP Photo/Petros Giannakouris) Sled dogs mushed by Jeff Deeter (33), of Fairbanks, Alaska, run during the Ceremonial Start of the Iditarod Trail Sled Dog Race in Anchorage, Alaska., Saturday, March 1, ...