Facts about Venus
By: Frances Stanford
Venus is the second planet from the sun and the closest one to the Earth. Except for the sun and the moon it is the brightest object in our solar system. It appears in the sky at dawn and dusk and for this reason, the...
By: Janet Grischy
The stars evolve. The H-R diagram charts the stages of their existence. Gravitational collapse begins the creation of a star, from a vast cloud of gas and dust. As it coalesces, its growing density adds energy to newly packed gases until its matter begins to...
How to make ethanol
By: Allegria Andretti
The alcohol ethanol, C2H5OH, can be produced in two ways, by fermentation and from crude oil. In ethanol fermentation, yeast is used to break down glucose and other sugars into ethanol and carbon dioxide. The glucose and other sugars used in this process come from...
By: Elton Gahr
The search for extra terrestrial intelligence is one of the most important quests that have ever been attempted by mankind. The question of whether we are alone in the universe and possibly even the meaning of life may be in our grasp. Our understanding of...
By: Elton Gahr
There are roughly 70 sextillion stars in the visible universe. This number is a little hard to fathom as is the understanding that the universe is 13.7 billion years old. Yet these two facts lead to an important question. With a universe so old...
By: Elton Gahr
Searching for worlds around other suns isn't easy. Stars are big and bright, planets are small and unimpressive. Our own sun is 333 times larger than the earth. This means that for a species on another star they would need to have a telescope 333...
By: Joseph Whalen
The primitive and paranoid culture that dominates human society today would be profoundly affected by a SETI success. Assuming of course society believed what was reported by SETI. Human beings undoubtedly have an almost unrestrained desire to explore and to learn, this is mentality is...
UFOs: A decade of contact
By: Cleveland Dingle
I think that a decade of contact is an understatement. First of all, there is no way that anyone can convince me that we are the only life forms in the universe. I have had a vision that I remember till this day, at the...
How astronauts manage bodily functions in space
By: Tami Port MS
The tasks of daily living that most of us take for granted are much more challenging to accomplish in outer space, especially those personal activities involving an astronaut's privates. The question of how to capture human waste at zero Gs is so important in fact...
Space Shuttle Atlantis: Latest mission to service Hubble telescope
By: Tami Port MS
Hubble is the first large optical telescope to be placed in space (miles higher than any mountaintop observatory). Having this powerful telescope in space is so advantageous because its view is not obscured by atmospheric distortion, cloud cover or the bright lights of our cities...

 

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