Kelvin waves have been a mystery for decades but a new method involving superfluid helium-4 can help us control them.

Sierra Space Upper Stage Vortex Engine Moves To Next Phase is published in Aerospace Daily & Defense Report, an Aviation Week Intelligence Network (AWIN) Market Briefing and is included with your ...

we see the TARDIS in flight from the outside as it travels through the space/time vortex. It’s not spinning on its axis yet though, which will become the standard in later years. After almost ...

Why you can trust Space.com Our expert reviewers spend ... but we had the test unit for a limited time. Users say the Vortex Solo R/T 8x36 monocular is super high-quality and results in excellent ...