International Year of Planet Earth (2008), Commemorative Issue
Dublin Core
Title
International Year of Planet Earth (2008), Commemorative Issue
Description
Αt the instigation of UNESCO and the “International Union of Geological Sciences”, the United Nations General Assembly proclaimed 2008 as the “International Year of Planet Earth” and the three years 2007-2009 to be a period of international actions.
Earth and the planets circling our sun were formed some 4.6 billion years ago when gas and dust collapsed. Earth is situated in the Milky Way galaxy which until the first two decades of the 20th century was thought to be the entire universe.
The expanse of the Milky Way stretches some 50,000 light years and light travels at 186,000 miles per second. Only 400 million years ago did Earth’s surface evolve to a strikingly modern appearance where green forests were populated by casts of insects and other creatures.
The search for earth-like planets has intensified in the past thirty years because we long to know if we are or are not alone in this vast timeless cosmos. So far more than 1700 planets have been identified orbiting other stars. The exoplanet Gliese 581g discovered in autumn 2010 is neither hot nor cold, thus challenging scientists and theorists to think about extraterrestrial life.
In the 3rd century BC Eratosthenes, the father of geography, calculated the girth of the earth which was correct to within 50 miles.
The earth takes 365 days 5 hours 48 minutes and 45.96768 seconds to circle around the sun.
Earth and the planets circling our sun were formed some 4.6 billion years ago when gas and dust collapsed. Earth is situated in the Milky Way galaxy which until the first two decades of the 20th century was thought to be the entire universe.
The expanse of the Milky Way stretches some 50,000 light years and light travels at 186,000 miles per second. Only 400 million years ago did Earth’s surface evolve to a strikingly modern appearance where green forests were populated by casts of insects and other creatures.
The search for earth-like planets has intensified in the past thirty years because we long to know if we are or are not alone in this vast timeless cosmos. So far more than 1700 planets have been identified orbiting other stars. The exoplanet Gliese 581g discovered in autumn 2010 is neither hot nor cold, thus challenging scientists and theorists to think about extraterrestrial life.
In the 3rd century BC Eratosthenes, the father of geography, calculated the girth of the earth which was correct to within 50 miles.
The earth takes 365 days 5 hours 48 minutes and 45.96768 seconds to circle around the sun.
Source
Cyprus Post, Republic of Cyprus
Κυπριακά Ταχυδρομεία, Κυπριακή Δημοκρατία
Κυπριακά Ταχυδρομεία, Κυπριακή Δημοκρατία
Publisher
Library of Cyprus University of Technology
Date
Contributor
Designer: Constantinos Panayi
Rights
Απαγορεύεται η δημοσίευση ή αναπαραγωγή, ηλεκτρονική ή άλλη χωρίς τη γραπτή συγκατάθεση του δημιουργού.
Relation
www.cypruspost.gov.cy
Format
jpg
Language
en
Type
Identifier
2009CS100
Coverage
35.160417, 33.346556
Files
Collection
Citation
Cyprus Post, Republic of Cyprus
Κυπριακά Ταχυδρομεία, Κυπριακή Δημοκρατία, “International Year of Planet Earth (2008), Commemorative Issue,” Αψίδα, accessed April 26, 2024, https://apsida.cut.ac.cy/items/show/44183.