As imagens acima foram retiradas da NASA - a última é de Neptuno e Tritão (podem clicar em cima para acederem a uma versão ampliada).
Leituras de Dezembro sobre o espaço - as notícias sobre os exo-planetas são cada vez mais magníficas:
Waterworld planet is more Earth-like than any discovered before | Science | guardian.co.uk: "Astronomers spotted the waterworld orbiting a star in our cosmic backyard, raising the chances that we will eventually discover planets suitable for life" .
'Zona habitável' terá de incluir planetas exteriores - Ciência - DN
Exoplanetary Thoughts for 2010 | Centauri Dreams
Possible habitable zones around stars. Credit: Kepler mission
Kepler Discovers Planets-like Objects Hotter Than Stars | Universe Today:
"The Kepler mission announced the discovery of 5 new extrasolar planets
today at the American Astronomical Society meeting in Washington, DC,
each with some very unusual properties. But additionally, the space
telescope has spotted some Jupiter-sized objects orbiting stars, and
these objects are hotter than the host star. The science team has no
idea what these objects could be, but they are part of 100 planetary
candidates Kepler has observed that are still being analyzed.
The Kepler mission's objective is to search for Earth-size planets in
the habitable zones of other stars, and the planets announced today are
comparable in size to Neptune, Jupiter and the other gas giants of our
solar system but are substantially less dense. This first set of five
new planets discovered by the Kepler mission was discovered in the
first six weeks of the telescope's operation. 'The quick discovery
indicates that Kepler is performing well,' said William Borucki, from
NASA's Ames Research Center."
Intergalactic Connection is Older, Longer than Thought | Universe Today
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PS: Faltou esta:
Dual Black Holes Spinning in a Cosmic Dance – Complete with Disco Ball | Universe Today:
"Astronomers have discovered 33 pairs of merging black holes in cosmic
dances around each other, a finding that was predicted or
'choreographed' by Isaac Newton. 'These results are significant because
we now know that these 'waltzing' black holes are much more common than
previously known,' said Dr. Julia Comerford of the University of
California, Berkeley, at the American Astronomical Society meeting in
Washington, DC. 'Galaxy mergers are causing the waltzing, can use this
finding to determine how often mergers occur. The black holes dancing
towards us are red-shifted with blue light, and those moving away from
us are shifted toward the red. So it is like a cosmic disco ball
showing us where the black holes are dancing.'"
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