Birger Vassenius

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Ahura Mazda - relief of the Zoroastrian god Ahura Mazda at the ancient ruins of Persepolis in Iran. Also known as Ormazd Zoroastrianism,

Which Religion Is the Oldest?

July, 2006, Launch of Space Shuttle Discovery STS-121. See attached for full caption information.

Will Light-Speed Space Travel Ever Be Possible?

Marriage. A couple getting married during a church wedding ceremony. (religion, ceremony, bride, groom)

The Seven Sacraments of the Roman Catholic church

Titanic infographic. The 30th anniversary of its discovery is September 1, 2015. SPOTLIGHT VERSION.

Timeline of the Titanic’s Final Hours

Easter Procession of Maria Santisima del Sacromonte in Granada, Spain. This statue is known as Virgen de los Gitanos or The Virgin of the Gypsies.

What is Holy Week?

Rural Irish landscape, Sligo, Ireland.

Why Is Ireland Two Countries?

illustration of the walking titanosaurus, Patagotitan mayorum

Titanosaurs: 8 of the World's Biggest Dinosaurs

Birger Vassenius

Swedish astronomer

Learn about this topic in these articles:

description of solar prominences

In solar prominence
…to describe prominences (1733) was Birger Vassenius of Göteborg, Sweden. In 1868 French astronomer Pierre Janssen and British astronomer Sir Joseph Norman Lockyer independently announced a method of observing prominences by spectroscope without waiting for an eclipse.
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