
Earth
Get flash to fully experience Pearltrees
Top 10 Amazing Earth Facts
10 More Amazing Weather Phenomena
On our previous list, Top 10 Amazing Natural Wonders , we covered a variety of amazing places. With this list we are showing some more amazing wonders which are less about places and more about formations and events. Be sure to add your own favorites to the comments for all to enjoy – preferably with links to images. An ice circle is a rare phenomenon that occurs in slow moving water in cold climates. It consists of large discs of ice that rotate slowly in the water.
10 More Amazing Wonders of the Natural World
Top 10 Unusual Islands
10 Strange Things About The Universe
Nemesis (hypothetical star)
Nemesis is a hypothetical red dwarf star [ 1 ] or brown dwarf , [ 2 ] originally postulated in 1984 to be orbiting the Sun at a distance of about 95,000 AU (1.5 light-years ), [ 2 ] somewhat beyond the Oort cloud , to explain a perceived cycle of mass extinctions in the geological record , which seem to occur more often at intervals of 26 million years. [ 2 ] [ 3 ] As of 2012 [update] , over 1800 brown dwarfs have been identified and none of them are inside the Solar System . [ 4 ] There are actually fewer brown dwarfs in our cosmic neighborhood than previously thought. Rather than one star for every brown dwarf, there may be as many as six stars for every brown dwarf. [ 5 ]Top 10 Plants That Will Kill You
Ok, I know I wasn’t supposed to do any more plant lists, but I couldn’t help myself. By killer plants I do not mean as in Top 10 Carnivorous Plants , plants that kill little insects, and the occasional rat, but plants that are well known to kill people. All plants contain some toxins as protection against predators. We already know, from Top 10 Poisonous foods we love to eat , that even apple seeds contain traces of cyanide.1999 Total Solar Eclipse Sequence This sequence encompasses the entire eclipse from start to finish. (click to see more photos) (c) Copyright 2009 by Fred Espenak Introduction
Solar Eclipses for Beginners
Introduction An ocean tide refers to the cyclic rise and fall of seawater. Tides are caused by slight variations in gravitational attraction between the Earth and the moon and the Sun in geometric relationship with locations on the Earth's surface.
8(r) Ocean Tides
Places
In man’s search for mineral wealth, many enormous holes have been dug. In addition, nature occasionally produces some astounding holes. This list is a pick of the ten most spectacular natural or manmade holes in the face of the earth. Many thanks to rushfan for sending in the images for this list. Click the images for a larger view. Chuquicamata is an open pit copper mine in Chile.

