- CREANOSO Interesting Facts About Galaxies. Assorted Gift Set Card Pack (6 Designs x 1 pcs each = Total 6 pcs)
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- DURABLE WATERPROOF BOOKMARK: Made with premium quality 7"x 2" inch - 5.5 oz matte card board paper with double-sided water resistant coating
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Creanoso Interesting Facts About Galaxies Bookmarks (6-Pack) - Knowledgeable and Amusing Gift cards - Gift Ideas for Boys and Girls, Students, Children, Adults, and Young Readers
SIX insightful and learning well-designed galaxies, packed with colorful artistic designed to encourage reading and develop good reading habit for male and female students and teachers, and adults. Inspiring reversible bookmarks with front and back designs:
A galaxy is a massive group of stars, star clusters, interstellar gas and dust, and dark matter which is all gravitationally bound together
The word 'galaxy' is derived from the Greek word Galaxias which means "milky"
Based on shape astronomers have identified various kinds of galaxies
Starburst is a name for galaxies that form a lot of new stars at a fast rate
Galaxies often collide with each other.
Supermassive black holes are believed to sit at the center of most galaxies
Any galaxy that has no obvious spiral or elliptical structure are called irregular galaxies
Elliptical galaxies are often larger, very old and contain little gas and dust, so therefore form very few new stars.
Spiral galaxies are believed to be younger than elliptical galaxies
The dense molecular clouds of hydrogen gas and dust in the spiral arms of spiral galaxies are areas of intense star formation
There are potentially more than 170 billion galaxies in the observable universe
Some, called dwarf galaxies, are very small with about 10 million stars
These inspiring bookmarks are made from premium quality 7"x 2" solid 5.5 oz matte card board paper with double-sided water resistant coating.
It is not only for marking a place in a book, but they can also be used as a piece of reminder and practical gift for men, women, and even kids, teens, young readers, and bibliophiles.