Least-action perihelion precession

The precession of Mercury's perihelion is reinspected by the principle of least action. The anomalous advancement of the apside line that is customarily accounted by the theory of general relativity, is ascribed to the gravitational effect due to the entire Universe. When the least action is written in the Sun's frame of reference, the residual rotation is seen to stem from inertia due to all bodies in the Universe. Since mass corresponds to a bound form of energy, gravity, as any other force, can be described as an energy density difference between a system of bodies and its surrounding energy densities that are dispersed throughout the Universe. According to the principle of least action the Universe is expanding by combustion of mass to radiation in the quest of equilibrating the bound forms of energy with "zero-density surroundings" in least time. Keywords: cosmological principle; energy density; energy dispersal; evolution; gravity; the principle of least actionComment: 7 pages, 3 figure

"Coreshine" in the L183 dark cloud

This image shows a dark mass of gas and dust where new stars and planets will likely spring up. The image on the far right shows the core as seen at longer wavelengths of infrared light, the core appears dark. The middle image shows the core as seen at a shorter infrared wavelength, the core lights up because it is deflecting starlight from nearby stars, phenomenon called coreshine. The image on the left is a combination of the other two imagesEducação Superior::Ciências Exatas e da Terra::Astronomi

Galaxy cluster Abell 383

Educação Superior::Ciências Exatas e da Terra::AstronomiaThis image, taken through the gravitational lens, reveals the discovery of this galaxy, distant 12.8 billion light-years from earth and is providing important clues about the early life of the universe. After measuring the ages of stars in the galaxy Abell 383, astronomers say that the galaxy started to shine when the universe was between 150 and 300 million year

Galáxia Maffei 2

Esta imagem, revelada através de luz infravermelha, mostra a galáxia espiral Maffei 2. Esta galáxia foi descoberta por Paolo Maffei em 1968 e está a cerca de 10 milhões de anos-luz da terraEducação Superior::Ciências Exatas e da Terra::Astronomi

Galáxia NGC 2841

Esta imagem, obtida através de diferentes comprimentos de onda da luz infravermelha do telescópio spitzer, mostra a galáxia espiral NGC 2841 que está localizada a cerca de 46 milhões de anos-luz da terra, na constelação de ursa maiorEducação Superior::Ciências Exatas e da Terra::Astronomi

Galáxia IC 342

Esta imagem, obtida através de luz infravermelha, revela a galáxia IC 342 que está distante cerca de 10 milhões de anos-luz da terraEducação Superior::Ciências Exatas e da Terra::Astronomi

"Coreshine" in the L183 dark cloud

This image shows a dark mass of gas and dust where new stars and planets will likely spring up. The image on the far right shows the core as seen at longer wavelengths of infrared light, the core appears dark. The middle image shows the core as seen at a shorter infrared wavelength, the core lights up because it is deflecting starlight from nearby stars, phenomenon called coreshine. The image on the left is a combination of the other two imagesEducação Superior::Ciências Exatas e da Terra::Astronomi

Galáxia Maffei 2

Esta imagem, revelada através de luz infravermelha, mostra a galáxia espiral Maffei 2. Esta galáxia foi descoberta por Paolo Maffei em 1968 e está a cerca de 10 milhões de anos-luz da terraEducação Superior::Ciências Exatas e da Terra::Astronomi

Galaxy cluster Abell 383

Educação Superior::Ciências Exatas e da Terra::AstronomiaThis image, taken through the gravitational lens, reveals the discovery of this galaxy, distant 12.8 billion light-years from earth and is providing important clues about the early life of the universe. After measuring the ages of stars in the galaxy Abell 383, astronomers say that the galaxy started to shine when the universe was between 150 and 300 million year