By: Terrence Aym
Astronomers are reporting that the super-massive star, Betelgeuse, located 640 light years from Earth in the Orion constellation, is rapidly losing mass and shrinking. When a star the size of this red super-giant begins collapsing it can only lead to one thing: a supernova.Betelgeuse...
By: Elton Gahr
The black hole is one of the most interesting ideas in physics because the rules of the universe as we understand them react differently in black holes. Yet the traditional black hole in which gravity is so heavy that not even light can escape is...
By: D. Vogt
AeroVironment (AV), a California-based energy and electric vehicle development company, has announced the first hydrogen-powered aircraft. In January 2011, the company's new unmanned aerial vehicle (UAV), the Global Observer, completed its first flight. Hydrogen-powered aircraft are based on the use of hydrogen rather than hydrogen-containing...
By: Norman Green
The word physics is ultimately derived from the Ancient Greek, phusika, 'natural things' from the root phusis 'nature'. It is the branch of science concerned with the properties and nature of matter and energy, the two things from which our world, our universe and we...
The link between tides and the moon
By: D. Vogt
Earth's seas owe their regular tides to the orbit of the moon. Briefly, the Moon's gravity pulls the oceans slightly in its direction, so that water on the nearest coast rises noticeably while water on distant coasts lowers slightly. The Moon orbits the Earth at...
By: Terrence Aym
In leap bridging today's construction with that of the world of tomorrow, Daniel Mellinger, a University of Pennsylvania Ph.D. candidate, has created a stunning network of jaw-dropping aerial robots he calls "quadrotors" that can assemble structures with warp speed.Mellinger worked on the project...
What is a planetary nebula?
By: Bill Georato
Planetary Nebulae: What Are They? “Space-the final frontier. These are the voyages of the Starship Enterprise. Our mission: to boldly go where no-one has gone before.” –Captain Jean-Luc Picard In its own way, this has been the mission statement of human kind...
By: Sue A. Sponte
Although the Hubble Space Telescope has only been orbiting since 1990, it represents the culmination of many years of planning and advocacy. The process to get the telescope to the place where it is today was a long one, with unexpected hurdles thrown in along...
By: D. Vogt
All stars pass through fundamentally the same life cycle: they are formed through the collapse and accretion of material in a giant molecular cloud, spend a lengthy period of time emitting massive amounts of heat and light produced by the fusion of hydrogen into helium...
By: D. Vogt
Nebulas, also referred to in the plural as nebulae, are among the most beautiful celestial objects that can be seen by telescope. These giant clouds of gas originate in the outer layers of old, dead stars, which are blown away in the last moments of...

 

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