By looking at Earth's full natural history and evolution, astronomers may have found a template for vegetation fingerprints -- borrowing from epochs of changing flora -- to determine the age of habitable exoplanets.
The geological record of the last million years shows that Earth's surface has changed dramatically, from being ice-covered to having huge forests spread out over land. For most of our home planet's early history, land plants did not exist, but plants eventually became widespread on Earth's surface.
The first plants, mosses, show only a weak vegetation signature that is difficult for astronomers to find remotely, compared to modern trees. Exoplanets may be parched, arid with clear skies and endless cacti forests, or hot jungle worlds covered in tropical forests.
Weaving New Worlds | Sarah H. Hill | University of North Carolina Press
When NASA's Galileo mission left Earth for Jupiter in , the late Cornell astronomer Carl Sagan requested the spacecraft's instruments look at Earth to see how light reflected from an inhabited, life-rich planet. Observations in December revealed a distinctive boost in reflectance between the red and infrared spectrum, just beyond the limits of human vision, due to vegetation. Said Kaltenegger: "Looking at how life altered Earth's biosignatures over time helps us to figure out which planets are most likely to show the strongest signs of life, ultimately giving us the best chances of successfully pinpointing life, if it is there.
Materials provided by Cornell University. Original written by Blaine Friedlander. Note: Content may be edited for style and length. Science News. Story Source: Materials provided by Cornell University.
Houston, Chloe, Ed., New Worlds Reflected: Travel and Utopia in the Early Modern Period
Robert Hughes, American Visions What connects the Australian to the American experience is a kind of inner imaginative awakening. Landscape is undoubtedly one of the most popular and universally loved themes in the history of Western art.
- Weaving New Worlds.
- The NAC Orchestra’s album New Worlds is nominated for a JUNO award.
- Amys Forbidden Fantasy.
- Final FRCR 2B Long Cases (Cambridge Medicine (Paperback))!
- The Unicorn from the Stars and Other Plays.
- True and False Paths in Spiritual Investigation!
- Hidden Gem #1.
This exhibition presents the broad sweep of landscape painting during one of its most exciting eras of development — the 19th century. In many ways the 19th century landscape painters reflected thoughts and deep feelings about the natural world which are still potent as we approach the 21st century. Examining two great traditions of landscape painting of the 19th century, those of Australia and America, the exhibition will explore how artists steeped in 'old world' traditions reacted when confronted by landscapes of the 'new world'.
This once in a lifetime exhibition includes of the best landscape paintings ever produced in Australia and America.
New worlds reflected : travel and utopia in the early modern period
Many of the works have never been shown before in this country — these include all of the American masterpieces and two unique Australian works by John Glover which have been in the Louvre since Gift of Mrs G. Nicholas While Esso's main contribution to Australia is as a major producer of oil and natural gas, the company also believes it is important to contribute to the quality and character of life in the community.
- No. 1: Gebet (Hebbel);
- The Great Map of Mankind — P. J. Marshall, Glyn Williams | Harvard University Press!
- "We want to see the entire world reflected in cinema" - Göteborg Film Festival!
- Perceptions of New Worlds in the Age of Enlightenment.
- New Worlds by Canada's National Arts Centre Orchestra | Analekta.
- Why Life Is A Mirror Reflecting Your Inner World?
Esso wishes to congratulate the National Gallery of Australia for organising this exciting exhibition.