By: Michael Totten
A comet is a collection of dust, rocks, ice, and frozen gases which is between half a mile and 100 miles in diameter. A comet's tail does not exist for nearly all of the comet's orbit. It won't appear at all until the comet's orbit...
Guide to the Orionids Meteor Shower  
By: Leigh Goessl
The Orionids Meteor Shower is expected to make its appearance as it customarily does in the second half of each October. In 2012, this cosmic illumination that stems from Halley's Comet is expected to arrive mid-week with it peaking on Sun., Oct. 21. While some...
By: Christyl Rivers
The planet Venus has the highest albedo in the solar system, yet the moon appears brighter to people on earth because it is so much closer than Venus. Albedo refers to the reflected brightness of a surface, or planetary body, in this case. Albedo comes...
Do you believe that aliens have already visited our planet?
By: Christyl Rivers
Aliens have visited earth many times. But so far, it is always in the imaginations of a species desperate for answers and connection to the cosmos. Absence of evidence is not evidence of absence. Nevertheless, no truly compelling evidence such as a fossil, a...
By: Robin Lamb
The planet Venus is a ‘femme fatale’; beautiful and alluring, and yet secretive and deadly. Revered by the ancients and named by the Romans for their goddess of love and beauty, the Earth’s nearest neighbouring planet appears as a bright ‘star’ in...
Amateur astronomers find planet with four suns
By: Wayne K. Wilkins
A group of amateur astronomers have made an astonishing and awe inspiring discovery as for the first time ever, a planet which closely resembles the planet “Tattooine” from the popular “Star Wars” series of films has been discovered. The real-life Star Wars plus...
How 'space junk' could kill future astronauts
By: Terrence Aym
Each year that passes space missions in near Earth orbit (NEO) are fraught with greater danger. So comes the sobering conclusion of two of the world's top space agencies: America's NASA and Europe's ESA.So much flotsam and jetsam are now choking the region of...
The reasons Venus has a high albedo
By: Maryam Idris
When you look out at the night sky, the first thing you'll probably see is the moon, followed by the hundreds of stars twinkling brightly in the darkness. However, even though the moon and stars may seem to be the brightest objects in the sky...
By: Jon Dainty Sr.
Venus presents many barriers to remote artificial exploration, not least among them its hellish temperature gradients and its opaque atmosphere filled with acid. Data from short-lived probes that have landed there reveal that even metal machines find survival difficult on volcanic landscapes tortured into nightmarish...
The reasons it is so difficult to land probes on the surface of Venus
By: Patrick Sills
Venus is a beautiful sight to see in the evening or morning hours. Except for the sun and moon, this planet is the brightest object in the sky. Venus can easily be mistaken for an aircraft or a bright light on a tower and can...

 

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