SPACE
& SCIENCE NEWS: November 2007
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Giant 'IceCube' could take snaps of Earth’s
core
(Nov 23, 2007)
A giant imaging machine buried in ice at the South Pole could one
day create pictures of the Earth's core. According to a new calculation,
the instrument – dubbed IceCube – could produce a picture
of the Earth's dense iron core, silhouetted against the lighter rocky
mantle.
Read
more. Source: New Scientist |
Moons like Earth's are few and far between
(Nov 21, 2007)
Moons created from massive collisions the way Earth's may have been,
are a rarity in the universe, suggests a new study. Our Moon
probably formed when a Mars-sized object slammed into the newly-formed
Earth, spraying debris into space. Some of this then coalesced to
form our Moon.
Read
more. Source: New Scientist |
Chinese lunar orbiter to begin observations
(Nov 20, 2007)
China's lunar orbiter is set to begin turning switching on its science
instruments. The spacecraft should help determine the thickness of
the lunar soil and shed new light on the Moon's
internal composition, which could help in understanding its origins.
Read
more. Source: New Scientist |
Planets forming in Pleiades star cluster
(Nov 20, 2007)
Rocky terrestrial planets, perhaps like Earth, Mars or Venus, appear
to be forming or to have recently formed around a star in the Pleiades
star cluster, the result of "monster collisions" of planets or planetary
embryos. Astronomers using the Gemini Observatory in Hawaii and the
Spitzer Space Telescope report their findings in an upcoming issue
of the Astrophysical Journal, the premier journal in astronomy.
Read
more. Source: UCLA |
Sun may be smaller than thought
(Nov 19, 2007)
The Sun may be smaller
than we thought, a new study argues. If correct, then other properties
of the Sun such as its internal temperature and density may be slightly
different than previously calculated. Understanding the Sun's interior
is important as it might help scientists make predictions about space
weather and answer questions about the solar system.
Read
more. Source: New Scientist |
Deflected asteroids may keep coming back
(Nov 18, 2007)
What goes around comes around. Unfortunately, no such karma figures
in plans to deflect asteroids on a collision course with Earth, a
hearing of the US House Science and Technology Committee was told
last week. One big whack will deflect an asteroid temporarily, but
does not guarantee safety next time its orbit brings it close.
Read
more. Source: New Scientist |
Is Comet Holmes bigger than the Sun?
(Nov 16, 2007)
The notion that Comet Holmes is bigger than the Sun has been making
the rounds on space-related websites of late. But is it true? According
to a statement on astronomer Dave Jewitt's website, it is. "Formerly,
the Sun was the largest object in the Solar System," the statement
reads. "Now, comet 17P/Holmes holds that distinction."
Read
more. Source: New Scientist |
Multi-star pile-up caused brightest supernova
(Nov 14, 2007)
A mystery over what caused the brightest supernova
ever observed finally appears to have been solved. Two astronomers
in the Netherlands say the explosion was the result of a cosmic pile-up:
dozens of massive stars crashing into each other, producing a monstrous
heavyweight star that eventually exploded, leaving a giant black
hole in its wake.
Read
more. Source: New Scientist |
New evidence for extragalactic life-forming
matter
(Nov 14, 2007)
Tantalising traces of the building blocks of life have been spotted
in nearby galaxies. However, working out the identity of these carbon-containing
molecules, and when they became abundant, is proving tricky, say astronomers.
Read
more. Source: New Scientist |
Antique fridge could keep Venus rover
cool
(Nov 12, 2007)
A high-tech refrigeration system could keep a rover functioning for
weeks on the searingly hot surface of Venus,
say NASA researchers. A long-lived Venus rover could help scientists
understand why Venus, with its runaway greenhouse effect, has become
so different from Earth.
Read
more. Source: New Scientist |
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