HOME >> BIOLOGY >> NEWS
'The end of the world' has already begun, UW scientists say

In its 4.5 billion years, Earth has evolved from its hot, violent birth to the celebrated watery blue planet that stands out in pictures from space. But in a new book, two noted University of Washington astrobiologists say the planet already has begun the long process of devolving into a burned-out cinder, eventually to be swallowed by the sun.

By their reckoning, Earth's "day in the sun" has reached 4:30 a.m., corresponding to its 4.5 billion-year age. By 5 a.m., the 1 billion-year reign of animals and plants will come to an end. At 8 a.m. the oceans will vaporize. At noon after 12 billion years the ever-expanding sun, transformed into a red giant, will engulf the planet, melting away any evidence it ever existed and sending molecules and atoms that once were Earth floating off into space.

"The disappearance of our planet is still 7.5 billion years away, but people really should consider the fate of our world and have a realistic understanding of where we are going," said UW astrophysicist Donald Brownlee. "We live in a fabulous place at a fabulous time. It's a healthy thing for people to realize what a treasure this is in space and time, and fully appreciate and protect their environment as much as possible."

In "The Life and Death of Planet Earth," Brownlee and UW paleontologist Peter Ward use current scientific understanding of planets and stars, as well as the parameters of life, to provide a glimpse of the second half of life on Earth and what comes after.

The book, a sort of biography of our planet, is being published today by Times Books, a division of Henry Holt and Co. It is a sequel to Ward and Brownlee's best-selling and much-discussed book "Rare Earth," in which they put forth the hypothesis that simple life is relatively common in the universe but complex, Earth-like life is exceedingly rare.

"The Life and Death of Planet Earth" explains how the myriad life on Earth today was preceded by a long period of microb
'"/>

Contact: Vince Stricherz
vinces@u.washington.edu
206-543-2580
University of Washington
13-Jan-2003


Page: 1 2 3

Related biology news :

1. DuPont scientist named one of the worlds top young innovators by MITs Technology Review Magazine
2. Health of worlds sea lions the focus of Wakefield Symposium
3. Scientists describe the worlds smallest, lightest fish
4. Improved nutrition could prevent more than half of the worlds child deaths annually
5. Five Marine Conservation leaders receive worlds top award from Pew Institute for Ocean Science
6. Worlds largest forest birds may produce worlds deepest bird calls
7. DuPont and NREL to develop worlds first integrated bio-refinery
8. Countries find common ground to protect worlds rarest gorilla
9. Tufts scientist named one of worlds 100 top young innovators by Technology Review Magazine
10. State of Amazonas safeguards worlds richest biodiversity with six new protected areas
11. New marine protected area to safeguard worlds largest fish

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: The end the world has already begun scientists say

(Date:7/25/2014)... N.Y., July 25, 2014 In the first broad-scale estimate ... Service scientists and collaborators calculated that trees are saving ... 670,000 incidences of acute respiratory symptoms. , While trees, ... of less than 1 percent, the impacts of that ... of the reduced air pollution at nearly $7 billion ...
(Date:7/25/2014)... Before the colonial era, 100,000s of people lived on ... cultures manipulated fire to control the availability of plants ... tribes continue to use fire to maintain desired habitat ... the U.S. Forest Service,s Pacific Southwest Station, will lead ... National Wildfire Refuge during the Ecological Society of America,s ...
(Date:7/25/2014)... the Terra satellite show the different areas that have been ... The burn scars show up as reddish-brown splotches of ... across the remote parts of Eastern Russia in the Sakha ... instrument, it is still possible to see the smoke ... noted below show the devastating number of fires that have ...
Breaking Biology News(10 mins):First national study finds trees saving lives, reducing respiratory problems 2Fire ecology manipulation by California native cultures 2Fire ecology manipulation by California native cultures 3
(Date:7/25/2014)... THOUSAND OAKS, Calif. , July 25, 2014 /PRNewswire/ ... its Board of Directors today declared a $0.61 per ... dividend will be paid on Sept. 5, 2014, to ... business on Aug. 14, 2014.  About ... biology for patients suffering from serious illnesses by discovering, ...
(Date:7/25/2014)... of bacteria live in each person,s digestive tract. Scientists ... and stave off harmful infections, but their role in ... shed light on the role of these bacteria, a ... Alm recently tracked fluctuations in the bacterial populations of ... described in the July 25 issue of the journal ...
(Date:7/25/2014)... from the University of Leicester has furthered our ... potential to create new materials using nanosized ,building ... in the prestigious academic journal Physical Review ... examine in rich detail the structure and internal ... acetylene molecule and a single helium atom. , ...
(Date:7/25/2014)... , July 25, 2014 ... the "Global Metabolomics Market 2014-2018" report ... http://photos.prnewswire.com/prnh/20130307/600769 Metabolomics or Metabonomics is ... Metabolomics has become a new experimental technique that ... the environmental sciences. Metabolites are small molecules that ...
Breaking Biology Technology:Amgen Announces 2014 Third Quarter Dividend 2Amgen Announces 2014 Third Quarter Dividend 3Monitoring the rise and fall of the microbiome 2Monitoring the rise and fall of the microbiome 3Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 2Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 3Global Metabolomics Market 2014-2018: Key Vendors are Agilent, Bio-Rad, Bruker, Human Metabolome and Metabolon 2
Cached News: