Astronomers using the HARPS planet-hunting machine at the European Southern Observatory’s (ESO) La Silla Observatory in Chile have made the first-ever direct detection of the spectrum of visible light ...

Visible light is a form of electromagnetic (EM) radiation, as are radio waves, infrared radiation, ultraviolet radiation, X-rays and microwaves. Generally, visible light is defined as the wavelengths ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Astronomers have detected an exoplanet's visible-light spectrum directly for the first time ever, ...

A simulated view of what Mars' night sky might look like at its poles. Credit: NASA/JPL-Caltech/Cornell Univ./Arizona State Univ.– E. W. Knutsen The night sky at Mars' poles looks nothing like our own ...