By: Kenneth Andrews
Return to the Red Planet! NASA has sent a $2.5bn unmanned rover vehicle to make the trip across space to Mars in order to seek out signs of life. Launched into the sky atop an Atlas 5 rocket on Saturday 26 November 2011, the...
An overview of the flight of Vostok II, August 1961
By: Paul Rance
The Soviet Union's Vostok II mission was one of the most important early space flights. It was also a remarkable achievement by young cosmonaut Gherman Titov to achieve his mission as he felt unwell through most of his flight. First 24 Hour Orbit of Earth...
NASA: 2012 may bring dangerous solar superstorms
By: Terrence Aym
Could a 2012 magnetic superstorm generated by the sun destroy America or northern Europe's fragile technology?No less than NASA thinks it's a distinct possibility. In a remarkable move the normally conservative US space agency has taken the extraordinary step of issuing ongoing warnings.The...
Gas laws: Avogadro's law
By: Harry Stevens
An important part of chemistry today is understanding the kinetics and reactions of gases. Over the past several hundred years, chemistry with gases has been studied extensively, and from this research, several laws have been developed. One of the more well known laws is Avogadro's...
By: Leigh Goessl
On Dec. 5, astronomers were elated to find that Kepler, NASA's planet-hunting spacecraft, has found its first Earth-like planet. Scientists have confirmed the discovery of its first 'Goldilocks' planet on this mission. A 'Goldilocks' zone is an area in outer space where the right conditions...
Probability of life on other planets
By: Susan Shevlane
The phenomenal discovery of a planet similar to Earth, by NASA on Monday 5th December, is truly a leap for our expectation on finding other life in the universe. However, it is currently placed outside our solar system and therefore only viewable through a telescope...
By: Kat Centeno
An element in different form is called an isotope. Cesium-137 is a radioactive isotope which is produced during nuclear fission. It is different from the Cesium, a non-radioactive element which has atomic mass of 133. Cesium-137 has an atomic mass of 137. Cesium-137 exists in...
By: Terrence Aym
The Kepler orbiting space telescope rocked astronomers in early December 2011 by detecting the most earth-like planet ever discovered.Thrilled scientists said the planet named Kepler-22b may have oceans, large land masses—even support life.What makes Kepler-22b especially exciting to astronomers, astrophysicists and exobiologists...
By: Jack Merrywell
In order to understand the half-life of any individual isotope, such as Caesium-137, one must first understand the principle of half-lives generally. A half-life is the amount of time it takes for a radioactive isotope to release half of its radioactive nastiness. However, and somewhat...
By: Raven Carluk
Cesium-137 is an intriguing radioactive isotope because it is entirely man-made from uranium rather than its no-radioactive counterpart. It is a byproduct of nuclear fission, and while mostly used in medical equipment, it is also found in fallout from nuclear weapons testing and reactor meltdowns...

 

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