sábado, 30 de março de 2013

sexta-feira, 22 de março de 2013

LHC part by part


quinta-feira, 21 de março de 2013

The Universe according to Planck

ESA's Planck satellite has delivered its first all-sky image of the Cosmic Microwave Background (CMB), bringing with it new challenges about our understanding of the origin and evolution of the cosmos. The image has provided the most precise picture of the early Universe so far. Read more.
 
Scientists spent years looking at the Planck data, analyzing it. And what they found is pretty amazing:
  • The Universe is 13.82 billion years old.
  • The Universe is expanding a bit slower than we expected.
  • The Universe is 4.9 percent normal matter, 26.8 percent dark matter, and 68.3 percent dark energy.
  • The Universe is lopsided. Just a bit, just a hint, but that has profound implications.
What does all this mean? Let’s take a quick look, one at a time, at these results.

quarta-feira, 20 de março de 2013

Spring

(Equinócio da Primavera: dia 20 de Março às 11h02m)

Elementary


quarta-feira, 13 de março de 2013

Amazing Water & Sound Experiment


terça-feira, 12 de março de 2013

Closest Star System Found in a Century


NASA's Wide-field Infrared Survey Explorer (WISE) has discovered a pair of stars that has taken over the title for the third-closest star system to the sun. The duo is the closest star system discovered since 1916.
Both stars in the new binary system are "brown dwarfs," which are stars that are too small in mass to ever become hot enough to ignite hydrogen fusion. As a result, they are very cool and dim, resembling a giant planet like Jupiter more than a bright star like the sun. Read more.
Both stars in the new binary system are "brown dwarfs," which are stars that are too small in mass to ever become hot enough to ignite hydrogen fusion. As a result, they are very cool and dim, resembling a giant planet like Jupiter more than a bright star like the Sun.

Read more at: http://phys.org/news/2013-03-closest-star-century.html#jCp
Both stars in the new binary system are "brown dwarfs," which are stars that are too small in mass to ever become hot enough to ignite hydrogen fusion. As a result, they are very cool and dim, resembling a giant planet like Jupiter more than a bright star like the Sun.

Read more at: http://phys.org/news/2013-03-closest-star-century.html#jCp
Both stars in the new binary system are "brown dwarfs," which are stars that are too small in mass to ever become hot enough to ignite hydrogen fusion. As a result, they are very cool and dim, resembling a giant planet like Jupiter more than a bright star like the Sun.

Read more at: http://phys.org/news/2013-03-closest-star-century.html#jCp
Both stars in the new binary system are "brown dwarfs," which are stars that are too small in mass to ever become hot enough to ignite hydrogen fusion. As a result, they are very cool and dim, resembling a giant planet like Jupiter more than a bright star like the Sun.

Read more at: http://phys.org/news/2013-03-closest-star-century.html#jCp

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terça-feira, 5 de março de 2013

Comets Lemmon and PanSTARRS Peaking


Mathematics of Planet Earth Day