Oftentimes, we think of space as an endless, mostly empty vacuum, a silent backdrop where planets, stars, and galaxies play out their dance. We also think of time as something separate, a steady ...

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe. When you ...

PARIS—Dassault Aviation is pushing for its proposed Vortex reusable spaceplane to become a European Space Agency (ESA) program, Chairman and CEO Eric Trappier said July 22. By taking on the Vortex ...

PARIS—The French Vortex spaceplane demonstrator program will aim to validate heat shield technology and different control capabilities once it takes flight in about three years. “We must invest in ...