Sites semelhantes Darkskysite.Com

It calculate a calibration for a MALDI TOF (and possibly other) mass spectrometers using any kind of (semi-)repetitive peptide as the calibrant.

Astronomical Imaging with a web cam in the backyard

Astronomy, astrophotography, CCDs, telescopes, observatory, digital astroimages, photographing space, amateur astronomy, amateur astrophotography.

Astrophotographs.com is an e-commerce web site of astrophotography, astrophotographs of solar and lunar eclipses, comets Hale-Bopp, Hyakutake and Halley's, northern ...

This is a web site of astronomy, astronomical photography, articles about astronomy and astrophotography and useful tips and tricks.

The world at your fingertips: visit the Planet Earth and beyond. Global and local information.

Astronomical photography with film, digital, and web cameras

Image galleries and equipment.