Researchers at the Mälardalen University in Sweden have provided an extensive review of all wavelength-selective PV systems ...

IN the preceding communication, Martyn has shown X that at wavelengths of a few metres, thermal radiation corresponding to a temperature of about & million degrees should be radiated from the sun.

Sunspot AR3256 erupted with an X1.2-class solar flare. NASA's Solar Dynamics Observatory captured the fireworks in multiple ...

Sunlight, or solar radiation, is composed of a spectrum of electromagnetic waves of varying wavelengths. This spectrum ...

Researchers in the UK have developed a new spray coating for greenhouses that optimizes the wavelength of light shining onto ...

This image, taken at 2.2 micron wavelength, shows the main ring system in reflected sunlight. This particular wavelength was chosen since Uranus itself is dark, since methane gas in its atmosphere ...

The same shifts in frequency and wavelength are also observed for light coming from stars in distant galaxies. By comparing the light from distant stars with the spectrum of light from our Sun it ...