The FOX Forecast Center is tracking a lobe of the polar vortex that is bringing extreme cold to the hundreds of millions ...

You might have heard the term “polar vortex” thrown around during the winter months, but what does it really mean and how ...

The polar dance that caused snow to fall across the South in January has been studied for decades, but scientists still hope ...

The glass is multicoated, which ensures efficient light transfer to the eye, and Vortex has included BaK-4 prisms, which enable a bright image with good contrast. Why you can trust Space.com Our ...

Sierra Space’s patented VORTEX technology enables efficient and stable combustion while providing active cooling for the combustion chamber, ensuring high performance and reliability.

Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...

Miles above the Earth, two bands of fast-moving air – the polar jet stream and the stratospheric polar vortex – sometimes tango together to influence weather in the northern hemisphere.

In 2023, Sierra Space announced the VR35K-A had completed engine component testing, which allowed the company to advance to the full engine hot fire testing campaign. Next, Sierra Space will continue ...