A revolutionary propulsion concept using light sails could one day allow small spacecraft to travel between stars at ...

This was in 1999, and fortunately [Phil] only suffered some fairly minor damage to his retina from the laser beam reflection. What happened to the customers (who wore argon laser safety glasses ...

They then shined a visible argon laser on it to measure the radiation pressure by observing the trampoline’s up-and-down movement. Tethering a light sail makes its dynamics complex. The sail ...

The team beamed an argon laser at visible wavelengths at the tethered sail to see how it wobbled and reacted to the warmth generated by the laser. The team measured the sail’s movements on a ...

When the sample was subjected to an argon laser, it vibrated. The researchers knew that this vibration was caused primarily by heat from the laser, and they needed to differentiate the vibration ...