ESA – Pinhole propulsion for satellites

ESA – Pinhole propulsion for satellites

A palm-sized propulsion option for future space missions: each one of these seven emitter arrays etched onto this silicon wafer using micro- and nano-technology possesses more than 500 pinhole-sized emitters that spray out ions, accelerated via an electrostatic field...
Drones accessories Christmas gift guide

Drones accessories Christmas gift guide

Star projectors holiday gift guide: Jump menuIf you’re looking for the best drone accessories available for all experience levels, for a loved one or even a little treat for yourself this holiday season, we have the perfect holiday gift guide for you. Buying a drone...
This Week in Astronomy with Dave Eicher

This Week in Astronomy with Dave Eicher

Back to Article List The Orion Nebula is one of the great observational playgrounds in the northern sky. The Orion Nebula makes for an expansive scene of glowing hydrogen gas, sculpted by gravity and the stars that are forming within it. Credit: Fernando Oliveira de...