If you have a windowless room that could use a little fake sunshine, here is how you can take the space to the next level.

Afterward, smaller sections of the rectangle are exposed to five or six intensities of UV light from a sun simulator for a set time based on how quickly the panelist’s skin burns without protection.

The EAST (Experimental Advanced Superconducting Tokamak) nuclear fusion reactor maintained a temperature of 158 million ...