(ISNS) — Giant cosmic voids that account for more than half the volume of the universe could make the stars beyond their boundaries appear brighter than they are, cosmologists have unexpectedly found.... Read more »
Charles Q. Choi. (2013) Objects Beyond Cosmic Voids Not As Bright As They Appear. Inside Science . info:/
Since the dawn of modern cosmology there’s been an implicit assumption that no particular spot in the universe was supposed to be any more special than the rest. On the biggest scales of all, scales at which galaxies are treated like tiny particles, the universe is supposed to be isotropic and homogeneous i.e. more or less uniform in composition and its expansion from the Big Bang. [...]... Read more »
Clowes, R., Harris, K., Raghunathan, S., Campusano, L., Sochting, I., & Graham, M. (2013) A structure in the early Universe at z 1.3 that exceeds the homogeneity scale of the R-W concordance cosmology. Monthly Notices of the Royal Astronomical Society. DOI: 10.1093/mnras/sts497
Christopher Russell has been looking for proof of lightning in the atmosphere of Venus for quite a while (his earliest publication I could find on the subject was in 1979). Now, Russell and his colleagues report on the strongest evidence yet for Venusian lightning (2012).In order to remove interference from magnetometer data collected previously by Venus Express, Russell and his team devised a new algorithm that uses the inboard sensor to detect interfering signals and then removes the same si........ Read more »
Russell, C., Leinweber, H., Zhang, T., Daniels, J., Strangeway, R., & Wei, H. (2012) Electromagnetic waves observed on a flight over a Venus electrical storm. Geophysical Research Letters. DOI: 10.1029/2012GL054308
A recent article in Nature Geoscience, Variations of sulphur dioxide at the cloud top of Venus's dynamic atmosphere, has caused the science press to get excited about the possibility of active volcanoes on Venus.Every news headline I saw over the last few weeks that referred to this article wondered aloud if there are active volcanoes. Even the ESA website poses the news as a question. So, does Venus have active volcanism? First, let's talk about the paper and what it reports.E........ Read more »
Marcq, E., Bertaux, J., Montmessin, F., & Belyaev, D. (2012) Variations of sulphur dioxide at the cloud top of Venus’s dynamic atmosphere. Nature Geoscience. DOI: 10.1038/NGEO1650
Astronomers have probably found the oldest star of the universe, i.e. nearly 13.2 billion years old, and interestingly it is located near to our Solar System.
“We believe this star is the oldest known in the Universe with a well determined age,” Howard Bond, an astronomer at Pennsylvania State University in University Park, who presented the finding on 10th of January at a meeting of the American Astronomical Society in Long Beach, California, said in a statement.
This propos........ Read more »
Astronomers have found a clump of bright galaxies so huge, it jolts their longstanding belief that the universe is pretty uniform on large scales.
And the scientists warn that more such discoveries may be on the way.... Read more »
Royal Astronomical Society, & World Science staff. (2013) Astronomers identify structure so huge it disrupts cosmic uniformity. World Science. info:/
Astronomers have found the largest known structure in the universe, i.e. a clump of active galactic cores, ranging in the size of 4 billion light years from one end to another at its widest point.
This research has been published online in the Monthly Notices of the Royal Astronomical Society.
This largest ever found object is a large quasar group (LQG) that is made up of extremely shining nuclei powered by supermassive central black holes.
Quasars are the high-energy and compact as........ Read more »
Roger G. Clowes, Kathryn A. Harris, Srinivasan Raghunathan, Luis E. Campusano, Ilona K. Soechting, & Matthew J. Graham. (2012) A structure in the early universe at z ~ 1.3 that exceeds the homogeneity scale of the R-W concordance cosmology. Monthly Notices of the Royal Astronomical Society. arXiv: 1211.6256v1
Another day, another study identifying more potentially habitable worlds in the Kepler data, this time by professional astronomers and volunteers called the Planet Hunters who discussed their planet detections on a specialized message board system called Talk. What they found was that more gas giants orbited stars in their habitable zones than initially thought, giving real evidence for the hypothesis that while alien Earths could be somewhat rare, moons orbiting alien Jupiters and Saturns may b........ Read more »
Ji Wang, Debra A. Fischer, Thomas Barclay, Tabetha S. Boyajian, Justin R. Crepp, Megan E. Schwamb, Chris Lintott, Kian J. Jek, Arfon M. Smith, Michael Parrish.... (2013) Planet Hunters. V. A Confirmed Jupiter-Size Planet in the Habitable Zone and 42 Planet Candidates from the Kepler Archive Data. n/a. arXiv: 1301.0644v1
Fifteen new planets have been discovered in the habitable zones of the other stars.
A report of the research has been submitted to the Astrophysical Journal and released via arxiv.org on Monday 7 January 2013.
This research has been done by the participants from the Planethunters.org website that is the part of the Oxford University based Zooniverse project.
This discovery has added the planets to the already discovered 19 planets in the habitable zones. These planets are in the hab........ Read more »
Ji Wang, Debra A. Fischer, Thomas Barclay, Tabetha S. Boyajian, Justin R. Crepp, Megan E. Schwamb, Chris Lintott, Kian J. Jek, Arfon M. Smith, Michael Parrish.... (2013) Planet Hunters. V. A Confirmed Jupiter-Size Planet in the Habitable Zone and 42 Planet Candidates from the Kepler Archive Data. Astrophysical Journal . arXiv: 1301.0644v1
Researchers have found that the planets in the two star systems have more chances to move out into the interstellar space.
This research has been published online in the journal Nature.
Researchers have found that this effect is usually limited to the planetary systems with at least one distantly orbiting object while the stellar fellows with closer orbits have fewer chances of violent disturbances.
"The fact that planets observed within wide binaries tend to have more eccentric (o........ Read more »
Kaib, N., Raymond, S., & Duncan, M. (2013) Planetary system disruption by Galactic perturbations to wide binary stars. Nature. DOI: 10.1038/nature11780
Earth is the only planet in our solar system with a long-term, stable supply of liquid water – essential for the formation and evolution of all organic life. But this doesn’t mean there aren’t other pockets of water elsewhere in our solar system (and around other stars).... Read more »
Lucyna Kedziora-Chudczer. (2012) Plumbing the depths: the search for water in our solar system and beyond. UNSW News. info:/
The protoplanet Vesta has been witness to an eventful past: images taken by the framing camera onboard NASA’s space probe Dawn show two enormous craters in the southern hemisphere. The images were obtained during Dawn’s year-long visit to Vesta that ended in September 2012. These huge impacts not only altered Vesta’s shape, but also its surface composition. Scientists under the lead of the Max Planck Institute for Solar System Research in Katlenburg-Lindau in Germany have shown........ Read more »
Max Planck Institute. (2013) Carbon in Vesta's craters. Max Planck Institute Astronomy News. info:/
I often ask others if they would live in space or on another planet if given the opportunity. More often than not, the answer is in the affirmative. But what if you were given the chance and actually wanted to go, but were declined because you weren’t selected by a computer algorithm as one of [...]... Read more »
Saaty, T., & Sagir, M. (2012) Global awareness, future city design and decision making. Journal of Systems Science and Systems Engineering, 21(3), 337-355. DOI: 10.1007/s11518-012-5196-z
Astronomers have used the ALMA telescope to get their first glimpse of a fascinating stage of star formation in which planets forming around a young star are helping the star itself continue to grow, resolving a longstanding mystery. The young system, about 450 light-years from Earth, is revealing its complex gravitational dance to the ever-sharpening vision of the Atacama Large Millimeter/submillimeter Array (ALMA), scheduled for completion this year.... Read more »
Dave Finley. (2013) ALMA Shows How Young Star and Planets Grow Simultaneously. National Radio Astronomy Observatory News. info:/
Magnetic fields of weaker strength, than the present day Earth’s magnetic field, were created even before the development of the first stars.
This recent research has been done by Prof. Dr. Reinhard Schlickeiser at the Institute of Theoretical Physics of the Ruhr-Universität Bochum and published online in the journal of Physical Review Letters.
This research shows the mechanism through which the magnetic forces came into being before the first stars, when according to the presen........ Read more »
Schlickeiser, R. (2012) Cosmic Magnetization: From Spontaneously Emitted Aperiodic Turbulent to Ordered Equipartition Fields. Physical Review Letters, 109(26). DOI: 10.1103/PhysRevLett.109.261101
Choosing a single telecommunications protocol has always been difficult for engineers on Earth, so it’s especially difficult for those who want to communicate with beings from another star system. While it’s nice to imagine that extraterrestrial beings would be able to interface with whatever protocol humans decide to encode a message in, that’s not a [...]... Read more »
Atri, D., DeMarines, J., & Haqq-Misra, J. (2011) A protocol for messaging to extraterrestrial intelligence. Space Policy, 27(3), 165-169. DOI: 10.1016/j.spacepol.2011.01.001
Edmondson, W. (2010) Targets and SETI: Shared motivations, life signatures and asymmetric SETI. Acta Astronautica, 67(11-12), 1410-1418. DOI: 10.1016/j.actaastro.2010.01.017
Interstellar space travel is one of the most common themes of science fiction, but the question is, will it ever become reality? With our current understanding of physics, propulsion methods and the limits of our technology, there is currently no practical way to travel to other stars and solar systems. NASA terminated its Breakthrough Propulsion [...]... Read more »
Once upon a time, we looked at an explanation for dark matter involving a theory about how all matter around us could decay over 6.6 × 10^33 years and noted that there’s a controversy as to whether protons actually decay. To help settle this, astronomers took advantage of the fact that telescopes are relativistic time machines, and peered through them at a galaxy known as PKS 1830-211 — a name only a scientist could love — that just so happens to be a gravitational lens a........ Read more »
Bagdonaite, J., Jansen, P., Henkel, C., Bethlem, H., Menten, K., & Ubachs, W. (2012) A Stringent Limit on a Drifting Proton-to-Electron Mass Ratio from Alcohol in the Early Universe. Science. DOI: 10.1126/science.1224898
In one word: short. In two words: it depends. A neuroscience expert faces the challenge of 100 new neuroscience articles being published on a daily basis. S/he will never be able to read all that. So, what can be done to get your own publication known to the community? . 1) Know the reader and [...]... Read more »
Haslam, N. (2010) Bite-Size Science: Relative Impact of Short Article Formats. Perspectives on Psychological Science, 5(3), 263-264. DOI: 10.1177/1745691610369466
Ledgerwood, A., & Sherman, J. (2012) Short, Sweet, and Problematic? The Rise of the Short Report in Psychological Science. Perspectives on Psychological Science, 7(1), 60-66. DOI: 10.1177/1745691611427304
Renear AH, & Palmer CL. (2009) Strategic reading, ontologies, and the future of scientific publishing. Science (New York, N.Y.), 325(5942), 828-32. PMID: 19679805
Krzysztof Zbigniew Stanek. (2008) How long should an astronomical paper be to increase its Impact?. arXiv. arXiv: 0809.0692v1
Hey Julie, I absolutely LOVE Project: Play with your Dog study and how the Horowitz Dog Cognition Lab are crowd sourcing using citizen science! I don't think a better way of contributing to scientific understanding can possibly exist! I look forward to hearing updates about how the research goes. I will certainly participate - next time we head to the river to play, we'll take our camera to get some video! So you might have noticed the silly season of festivity has landed upon us... Assumi........ Read more »
Sitler Robert K. (2006) The 2012 Phenomenon New Age Appropriation of an Ancient Mayan Calendar. Nova Religio, 9(3), 24-38. DOI: 10.1525/nr.2006.9.3.024
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