Mar. 31 Another super-luminous supernova
Emmanouil "Manos" Chatzopoulos and J. Craig Wheeler (University of Texas at Austin) have just published, in the Astrophysical Journal, the results of an analysis of supernova 2008am, one of the brightest
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Mar. 30 First image of Mercury from orbit
The MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) probe, funded by NASA and managed by the Johns Hopkins University Applied Physics Laboratory, has produced the
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Mar. 17 Earthquake: Earth's axis moved by
17 cm
Using a complex mathematical
model, Richard Gross of
NASA's Jet Propulsion
Laboratory (Pasadena,
California), has calculated
how the magnitude 9.0
earthquake that struck Japan
on 11th March has
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Mar. 15
The active eye of NGC 4151
43 million light years away,
the galaxy we see in this
picture has been called the
"Eye of Sauron" for the
similarity of the image to
the evil eye of the "Lord of
the Rings" character. It is
actually a composite
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Mar. 11
Earth: climate information from the core
What relation can there
possibly be between the
tiny, ten year timescale,
variations of Earth's
rotational period, the flows
of liquid iron in the outer
core and climatic
variations? Apparently none,
and
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Mar. 10
More heat than predicted from Enceladus
A study published recently in the Journal of Geophysical Research reveals that the thermal energy produced by Enceladus, a satellite of Saturn, is an order of magnitude greater than predicted by
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Mar. 8
Sh2-284, the little elephant nebula
NASA's Wide-field Infrared
Survey Explorer (WISE) has
produced this curious image
of the Galactic star forming
region Sh2-284, whose shape,
given a little imagination,
resembles a baby elephant,
with
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Mar. 7
More "extraterrestrial" bacteria!
Here we are again. Another
sensationalist announcement
of the discovery of various
species of fossilized
"extraterrestrial" bacteria,
found within one or more
carbonaceous chondrite
meteorites.
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Mar. 4
Beta Pictoris b, the whole picture
When, 25 years ago, the
dusty protoplanetary disk
around Beta Pictoris was
imaged for the first time,
it immediately suggested
that planet formation was a
common phenomenon. Many
years later, in
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Mar. 3
Habitable zones at risk from tides
A cold shower awaits those
that saw rocky planets
located in the so-called
"habitable zone" around red
dwarfs as one of the most
likely places to find life.
The habitable zone is the
range of distances
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Mar. 2
Another asymmetric supernova
By now it is well established that giant stars can explode asymmetrically,
even though it seems to
occur only in a limited
number of cases. The latest
example is SN2010jl, that
appeared
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Mar. 1
Solar pores heat the corona
In this week's Astrophysical
Journal, an article appears
that may resolve the long
standing problem of why the
Sun's atmosphere - the
corona - passes from about
6000°C at the photosphere to
over
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