World population milestone

7 billion

7 billion (7,000,000,000)

The number of people on Earth topped the 7 billion mark today according to the United Nations Population Fund.  The 6 billion mark was crossed in 1999 and it took the entirety of history until approximately 1804 to reach the 1 billion population figure.  Different projections have the figure reaching between 8 billion and 10.5 billion by 2050, although if the population growth over the past decade were to be used as the basis for future growth – the global population would be between 12 and 13 billion by 2050 and between 18 and 20 billion by 2100. Continue reading

It is 140 trillion times the volume of all the oceans on Earth

It is 140 trillion times the volume of all the oceans on Earth || “Black Hole Holds Universe’s Biggest Water Supply” http://ow.ly/5MFtd

Surf an ocean of liquid metallic hydrogen on Saturn

Surf an ocean of liquid metallic hydrogen on Saturn || “8 Wonders of the Solar System, Made Interactive” http://ow.ly/5MDYc

 

What can we learn from the end-Triassic mass extinction?

What can we learn from the end-Triassic mass extinction? || “Mass Extinction Easier to Trigger Than Thought” http://ow.ly/5Kk82

Scientist finds signals of catastrophe

Scientist finds signals of catastrophe – “Early Warning Signs Could Show When Extinction Is Coming” http://ht.ly/2CfVv #science

From the archives; defend Earth from the End of Days

From the archives; defend Earth from the End of Days – “How to Defend Earth Against an Asteroid Strike” http://ht.ly/2ATYv #apocalypse

TED: The world’s oldest living things

This fascinating piece from TED puts in perspective the brevity with which us humans grace the face of this planet.  Rachel Sussman highlights those organisms that have been alive continuously for more than 2,000 years: