|
|
|
Hot Topic
Solar System
Earth
|
|
|
| |
|
| Swansong Biospheres |
| Topic: Earth |
12/20/12 |
| Billions of years from now, life on Earth will be extinguished when the Sun becomes a Red Giant star. New research determines the last places life will exist before our planet is sterilized. |
|
|
|
| Living Dangerously |
| Topic: Earth |
08/11/11 |
| In an exclusive podcast for astrobio.net, Dr. David Grinspoon, astrobiology curator at the Denver Museum of Nature & Science, discusses our violent Earth. He explains why earthquakes, severe weather, and other aspects of the dynamic environment may be necessary for life to exist. |
|
|
|
| How Earth´s Orbital Shift Shaped the Sahara |
| Topic: Earth |
12/20/10 |
| A change in the Earth´s orbit, many scientists believe, transformed the "Green Sahara" into what is now the largest desert on the planet. While scientists are still trying to find out if the slow shift in orbit had rapid or gradual environmental consequences, they say Earth´s orbit will continue to change today and into the future. |
|
|
|
| Thawing a Planet-Sized Snowball |
| Topic: Earth |
11/04/10 |
| The Earth has plunged into a deep freeze several times in the past, with ice covering the land and sea for millions of years. Researchers are studying how the planet eventually escaped these cold spells, and whether Earth-like planets elsewhere in the galaxy may be susceptible to the same climate catastrophe. |
|
|
|
| A Hazy View of Early Earth |
| Topic: Earth |
10/12/09 |
| The atmosphere of the early Earth may have been filled with particulate haze, much like a smoggy day in Los Angeles. This hazy air would have affected the ancient climate and even may have influenced the origin and evolution of life. |
|
|
|
|
