It's got solid and liquid parts, it's almost as hot as the sun, and it may be teeming with life.
1. In 1692 Edmond Halley (of comet fame) proposed that the Earth is hollow. Below the outer crust where we live, he pictured two concentric shells and a core about the size of Mercury, all floating in a luminous gas.
2. Helloooo down there: Halley even imagined that these shells might be inhabited. Jules Verne riffed on this idea in his classic Journey to the Center of the Earth.
Islandnet.com - 3/19/13, Keith C. Heidorn, PhD, THE WEATHER DOCTOR
Many years ago, the nature-essayist Hal Borland wrote in his book Sundial of the Seasons that "Sun dogs and moon dogs are beautiful accents to a winter day or night as the rainbow is to a showery Summer day." Sun dogs usually appear in pairs, and are loyal to the sun (as moon dogs are loyal to the moon), sitting on each side of the solar orb along a horizontal line through the solar disk. Sun dogs appear in January, April, August, and October, the month does not really matter, but they are most regularly seen close to their solar master during winter months when the sun is low in the sky and ice crystals in the atmosphere are more common, but we can see them in any of the other seasons whenever cirrus clouds fuzz the sky above.
An estimated 100,000 people in Britain have Charles Bonnet Syndrome (CBS), which leads to hallucinations. These can include visions of miniature people
Following his wife's death six years ago, David Stannard has become accustomed to spending quiet evenings alone at his home in Walton-on-Thames, Surrey.
So it came as a surprise to the 73-year-old when he looked up from his television one evening to discover he was sharing his living room with two RAF pilots and a schoolboy.
The bright dancing lights of the aurora are actually collisions between electrically charged particles from the sun that enter the earth's atmosphere. The lights are seen above the magnetic poles of the northern and southern hemispheres. They are known as 'Aurora borealis' in the north and 'Aurora australis' in the south..
Auroral displays appear in many colours although pale green and pink are the most common. Shades of red, yellow, green, blue, and violet have been reported. The lights appear in many forms from patches or scattered clouds of light to streamers, arcs, rippling curtains or shooting rays that light up the sky with an eerie glow.
