A brand new NASA space observatory, SPHEREx, has taken its first test images a few weeks after its launch on March 11, and ...

SPHEREx will begin routine science operations in late April, NASA said. At that time, the space telescope will begin taking about 600 exposures a day. The observatory is capable of detecting infrared ...

Colors are one of the first things people learn about in school. Well, you might have to start re-learning. At least, when it comes to one color people think is on the spectrum. Popular Mechanics ...

Scientists have discovered that purple, a color not found on the light spectrum, is a brain-created illusion when red and ...