Subjects

Get to know these fascinating sky phenomena. Almost all known types of halos are described using over 300 images. Plus many tips for observing halo phenomena yourself.

Here you can go directly to the Northern Lights forecast. Learn more about the terms solar wind, Earth's magnetic field, X-ray radiation, and KP value.

Luminous noctilucent clouds, abbreviated NLC, illuminate the night sky during the summer months. Learn more about the silvery bright clouds that form at an altitude of 80km.

Information on meteor observation and current news from the world of meteors, impacts, and small bodies of the solar system.