Physical Science

The robot on Mars with one arm, six wheels and its head atop a mast has caught the world’s attention. The boldest mission to Mars that Earthlings have ever undertaken. The Mars rover Curiosity is a self propelled, semi-autonomous robot…
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On October 20, 2010, comet Hartley 2 (also known as 103P/Hartley) passed within just 11 million miles of Earth. It was an exciting event for amateur astronomers as well as an important precursor to a close approach by a NASA…
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The infamous tin foil hat—long associated with paranoia, crackpots, or individuals that promote borderline conspiracy theories—actually has some scientific history supporting the odd accoutrement. Although recognized as having some credibility in the past, (a wearer of a tin foil hat…
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An idea’s floated around astrophysicists circles for years: the universe is a giant brain. Now scientists have found evidence that the universe is constructed like a gigantic brain and elements of the cosmos parallel that of life’s thinking organ. The…
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It was only until the very recent years that Neil Armstrong was a regular household name. Now, the phase-out phenomenon is occurring here when even one of the most popular events of all time feels dust on covers of the…
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Speaking at the at the British Science Festivalin Guildford, Professor Colin McInnes of Strathclyde University explained his work at the leading edge of deep space propulsion technology.  He described how solar forces can be divided into two types: solar wind, which…
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Something unique was spotted above the Hawaiian Islands in 1997. Powered by six propellers, it moved slowly and quietly through the sky, staying in flight above the coastal region for hours. The flying machine didn’t look like any other planes…
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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…
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Helium is an element that occurs as a gas at standard temperature and pressure. It is an inert gas, which means that it is, for all practical purposes, not chemically reactive.  One atom of helium has two protons, two neutrons and…
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Chlorine is a strong oxidizing agent and is used in many toilet cleaning products. Even though chloride ions are necessary for human beings, elemental chlorine is extremely dangerous. When this toxic yellow-green gas (with concentrations above 30 ppm) is inhaled,…
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