Early space telescopes and the rise of Hubble
By: Graham Brown - 565544
The Einstein Observatory, also known as HEAO-2, was launched in 1978 and over its three years of operation, the observatory made many significant contributions to the field of X-ray astronomy. Light classified as X-rays is characterized by a wavelength between 0.01 and 10 nanometers...
By: Tim White - 240468
Often there are a great many snags involved in a search of this nature. Firstly, it`s been quite erroneous to assume we would be contacted directly by intelligent society outside our influence. It would be quite obvious that dealing with us as a whole would...
Future missions to explore Saturn
By: D. Vogt
Saturn, the second-largest planet in the solar system after Jupiter but certainly the most beautiful planet because of its rich ring system, has so far been approached by four human spacecraft: Pioneer 11, the two Voyager probes, and Cassini. Unfortunately, while Cassini still has years...
Is Nibiru really hurtling towards Earth?
By: D. Vogt
Almost certainly, it is not. According to one theory, based upon a tenuous analysis of obscure ancient Sumerian texts, the ancient peoples of the Near East were aware of a planet which follows a drawn-out 3600 year orbit, passing near Earth once during that time...
The difference between stars and planets
By: D. Vogt
The essential difference between stars and planets is that when stars formed out of the giant molecular cloud which predated their stellar system, they were large enough that their gravitational pressure forced the hydrogen at their core to begin undergoing nuclear fusion, whereas planets were...
What is a constellation?
By: D. Vogt
A constellation is a pattern of stars which appear to form the outline of an image or picture in the sky. The best-known of these constellations are relatively easily located, have highly recognizable shapes, and have well-known names, like the Big Dipper (and the Little...
By: D. Vogt
The Southern Cross, or Crux, is a constellation visible throughout the southern hemisphere and the equatorial regions, which can be found between the neighbouring constellations of Centaurus and Musca. Stargazers should be careful not to confuse the Southern Cross with another similar constellation, the False...
The signifiance of capitalization in Astronomy
By: D. Vogt
Internationally, rules for when to capitalize the names of objects in astronomy are currently set by the International Astronomical Union (IAU). In general, all planets, stars, and spacecraft should be capitalized as proper nouns - a grammatical category referring to the proper names of specific...
How pulsars can affect Planet Earth
By: D. Vogt
A pulsar is a neutron star which, as it spins (having been accelerated to unbelievably rapid speeds), shoots out a continuous stream of electromagnetic radiation. From any given vantage point (for example, a telescope on Earth), these stars seem to "pulse," flickering on and...
By: D. Vogt
Mars is the fourth planet in the solar system, located in an orbit between Earth and Jupiter (this also makes it the last of the rocky planets; all more distant planets are gas giants). Viewed from Earth, Mars has a perpetually orange or reddish tinge...

 

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