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News | Archive (November 2007)
Holiday wishes from the Hubble Space Telescope
— 30 Nov 2007 | AstronomyResembling festive lights on a holiday wreath, this NASA/ESA Hubble Space Telescope image of the nearby spiral galaxy M74 is an iconic reminder of the impending season. Bright knots of glowing gas light up the spiral arms, indicating a rich environment of star formation…
NASA scientist confirms light show on Venus
— 30 Nov 2007 | AstronomyVenus is a hellish place of high temperatures and crushing air pressure. The European Space Agency's Venus Express mission adds into this mix the first confirmation that the Venusian atmosphere generates its own lightning. The discovery is part of the Venus Express science findings that appear in a special section of the 29 November issue of the journal Nature…
Embryonic star captured with jets flaring
— 30 Nov 2007 | AstronomyA developing star wrapped in a black cocoon of dust is seen sprouting giant jets in a new image from NASA's Spitzer Space Telescope. The stellar portrait, captured in infrared light, offers the first glimpse at a very early stage in the life of an embryonic sun-like star - a time when the star's natal envelope is beginning to flatten and collapse, and streams of gas are escaping. The observations will ultimately help astronomers better understand how stars and their planets form…
Youthful star sprouts planets early
— 30 Nov 2007 | AstronomyA stellar prodigy has been spotted about 450 light-years away in a system called UX Tau A by NASA's Spitzer Space Telescope. Astronomers suspect this system's central sun-like star, which is just one million years old, may already be surrounded by young planets. Scientists hope the finding will provide insight into when planets began to form in our own solar system…
Novel physiological states identified for malaria parasite
— 28 Nov 2007 | BiologyThe malaria parasite has been studied for decades, but surprisingly, little is known about how it behaves in humans to cause disease. In a groundbreaking study published in the advance online edition of Nature, an international research team has for the first time measured which of the parasite's genes are turned on or off during actual infection in humans, not in cell cultures, unearthing surprising behaviours and opening a window on the most critical aspects of parasite biology…
Embryonic cells count to control their development
— 28 Nov 2007 | BiologyScientists have uncovered embryonic cells' ability to measure and respond to the strength of the molecular signals that guide nerve development in the growing spinal cord. The discovery may help scientists learn how to direct stem cells to turn into any cell type including nerve cells. The team from the MRC National Institute for Medical Research (NIMR) and led by Dr James Briscoe publish their research in Nature…
Composition of 3-D movies with Terrain Camera images onboard KAGUYA
— 28 Nov 2007 | AstronomyThe Japan Aerospace Exploration Agency (JAXA) successfully demonstrated production of digital elevation models and stereo movies (3 dimensional movies) of the Moon surface by using stereoscopic images obtained with the Terrain Camera (TC) onboard KAGUYA on 3 November 2007…
Study supports single main migration across Bering Strait
— 28 Nov 2007 | Geology and palaeontologyDid a relatively small number of people from Siberia who trekked across a Bering Strait land bridge some 12,000 years ago give rise to the native peoples of North and South America?…
A prehistoric forest emerges from pond of a farmer
— 28 Nov 2007 | Geology and palaeontologyDennis Myllyla thought he'd struck a fine bargain with the Michigan Department of Transportation. MDOT would get fill for nearby highway construction by dredging a pond on his farm near Arnheim, Mich., and Myllyla would get the pond…
Climate change and life in the Southern Ocean
— 28 Nov 2007 | EnvironmentA ten-week expedition to the Lazarev Sea and the eastern part of the Weddell Sea opens this year's Antarctic research season of the German research vessel Polarstern. On the evening of 28 November, just some two hours after an official ceremony at the Berlin Museum of Natural History honouring Polarstern's 25th anniversary of service, the research vessel will begin its 24th scientific voyage to the Southern Ocean from Cape Town…
Telescope ferrets out planet-hunting targets
When is an asteroid not an asteroid?