Monday, August 8, 2016

Perseid Meteor Shower in 2016

Perseid Meteor Shower in 2016
The 2016 Perseid meteor shower will peak on August 12 and 13. A waxing gibbous Moon will make it harder for observers to watch the meteor shower.

Radiant of the Perseid meteor shower.

When Can I See the Perseids?
The Perseid meteor shower, one of the brighter meteor showers of the year, occur every year between July 17 and August 24. The shower tends to peak around August 9-13.
The best time to view the Perseids, or most other meteor showers is when the sky is the darkest. Most astronomers suggest that depending on the Moon’s phase, the best time to view meteor showers is right before dawn.
Sunrise and Sunset in my City
Comet Swift-Tuttle
Made of tiny space debris from the comet Swift-Tuttle, the Perseids are named after the constellation Perseus. This is because the direction, or radiant, from which the shower seems to come in the sky lies in the same direction as the constellation Perseus, which can be found in the north-eastern part of the sky.
While the skies light up several time a year by other meteor showers , the Perseids are widely sought after by astronomers and stargazers. This is because at its peak, one can see 60 to a 100 meteors in an hour from a dark place.
Where Can I See the Perseids?
The Perseids can be seen in the Northern Hemisphere. Look between the radiant, which will be in the north-east part of the sky and the zenith (the point in sky directly above you).
While you can easily see a shooting star with the naked eye just looking straight up, the table below shows the exact direction of the Perseids from your location.
Location in the Sky Tonight
Slight chance to see Perseids, table below is updated daily and shows position for coming night.
Perseids meteor shower for Munich (Night between 9 Aug and 10 Aug)
Time Azimuth/Direction Altitude
Tue 01:00 43°Northeast 38.5°
Tue 02:00 47°Northeast 45.6°
Tue 03:00 51°Northeast 53.2°
Tue 04:00 53°Northeast 61.1°
Tue 05:00 50°Northeast 69.0°
Tue 22:00 24°North-northeast 22.3°
Tue 23:00 31°North-northeast 26.9°
Wed 00:00 37°Northeast 32.5°
Direction to see the Perseids in the sky:
Azimuth is the direction, based on true north, a compass might show a slightly different value.
Altitude is height in degrees over horizon.
Note that this is not the prime period to watch the Perseids, so there may be few or no meteors visible this night.
Set your location

Friday, August 5, 2016

Hi Science lovers,
Take a look at the “This Week in Science”, Editor Summaries of this week's papers.
In science news around the world, fires were on the rise in the first half of 2016 in the Brazilian Amazon and its great central savanna, the Cerrado; Russia's scientific community is reeling from news of planned layoffs; the U.S. National Institute of Mental Health selects a new director; and climate change and a melting ice sheet may soon expose a Cold War–era military base on Greenland. Also, scientists have made the first diagnosis of septic arthritis in a dinosaur. And a new study suggests that the female orgasm is an evolutionary holdover from a time when intercourse stimulated hormonal surges that drove ovulation.

Editors' Choice
Highlights of the recent literature.



JIFfy Pop
Jeremy Berg




News at a glance
American Association for the Advancement of Science




Venezuela's woes hamper access to fossil trove
Lizzie Wade



Antiaging trial using young blood stirs concerns
Jocelyn Kaiser



NSF tries two-step review, drawing praise-and darts
Jeffrey Mervis



Zika vaccine has a good shot
Jon Cohen



Synchrotron aims to bridge divides in the Middle East
Erik Stokstad



Dispute over president's age tears Pasteur Institute apart
Tania Rabesandratana




The storyteller
Adrian Cho



The long road to LIGO
Adrian Cho




Working my way out
Jason Cantley




Deciphering P values: Beware false certainty
Chad L. Hewitt , Marnie L. Campbell, Alisha Dahlstrom Davidson



Deciphering P values: Defining significance
Fred Phillips



Expanding protected areas is not enough
Aliénor L. M. Chauvenet , Megan Barnes




Bombs away?
Alex Wellerstein



Facts versus fallacy
Christopher J. Phillips




The FDA is prohibited from going germline
I. Glenn Cohen , Eli Y. Adashi



China-U.S. cooperation to advance nuclear power
Junji Cao , Armond Cohen, James Hansen, Richard Lester, Per Peterson, Hongjie Xu




Emperor Yu's Great Flood
David R. Montgomery



Bringing order to the expanding fermion zoo
Carlo Beenakker



How do sunflowers follow the Sun-and to what end?
Winslow R. Briggs



Benefits of selective feeding
Rebecca M. Lennen



A nanoview of battery operation
Steen B. Schougaard




Diverse evolutionary roots and mechanistic variations of the CRISPR-Cas systems
Prarthana Mohanraju , Kira S. Makarova, Bernd Zetsche, Feng Zhang, Eugene V. Koonin, John van der Oost




Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals
Barry Bradlyn , Jennifer Cano, Zhijun Wang, M. G. Vergniory, C. Felser, R. J. Cava, B. Andrei Bernevig



C2c2 is a single-component programmable RNA-guided RNA-targeting CRISPR effector
Omar O. Abudayyeh , Jonathan S. Gootenberg, Silvana Konermann, Julia Joung, Ian M. Slaymaker, David B. T. Cox, Sergey Shmakov, Kira S. Makarova, Ekaterina Semenova, Leonid Minakhin, Konstantin Severinov, Aviv Regev, Eric S. Lander, Eugene V. Koonin, Feng Zhang




Grain-resolved analysis of localized deformation in nickel-titanium wire under tensile load
P. Sedmák , J. Pilch, L. Heller, J. Kopeček, J. Wright, P. Sedlák, M. Frost, P. Šittner



Direct conversion of methane to aromatics in a catalytic co-ionic membrane reactor
S. H. Morejudo , R. Zanón, S. Escolástico, I. Yuste-Tirados, H. Malerød-Fjeld, P. K. Vestre, W. G. Coors, A. Martínez, T. Norby, J. M. Serra, C. Kjølseth



Origin and hysteresis of lithium compositional spatiodynamics within battery primary particles
Jongwoo Lim , Yiyang Li, Daan Hein Alsem, Hongyun So, Sang Chul Lee, Peng Bai, Daniel A. Cogswell, Xuzhao Liu, Norman Jin, Young-sang Yu, Norman J. Salmon, David A. Shapiro, Martin Z. Bazant, Tolek Tyliszczak, William C. Chueh



Permanent excimer superstructures by supramolecular networking of metal quantum clusters
Beatriz Santiago-Gonzalez , Angelo Monguzzi, Jon Mikel Azpiroz, Mirko Prato, Silvia Erratico, Marcello Campione, Roberto Lorenzi, Jacopo Pedrini, Carlo Santambrogio, Yvan Torrente, Filippo De Angelis, Francesco Meinardi, Sergio Brovelli



Tuning the valley and chiral quantum state of Dirac electrons in van der Waals heterostructures
J. R. Wallbank , D. Ghazaryan, A. Misra, Y. Cao, J. S. Tu, B. A. Piot, M. Potemski, S. Pezzini, S. Wiedmann, U. Zeitler, T. L. M. Lane, S. V. Morozov, M. T. Greenaway, L. Eaves, A. K. Geim, V. I. Fal'ko, K. S. Novoselov, A. Mishchenko



Outburst flood at 1920 BCE supports historicity of China's Great Flood and the Xia dynasty
Qinglong Wu , Zhijun Zhao, Li Liu, Darryl E. Granger, Hui Wang, David J. Cohen, Xiaohong Wu, Maolin Ye, Ofer Bar-Yosef, Bin Lu, Jin Zhang, Peizhen Zhang, Daoyang Yuan, Wuyun Qi, Linhai Cai, Shibiao Bai



Metabolic engineering of microbial competitive advantage for industrial fermentation processes
A. Joe Shaw , Felix H. Lam, Maureen Hamilton, Andrew Consiglio, Kyle MacEwen, Elena E. Brevnova, Emily Greenhagen, W. Greg LaTouf, Colin R. South, Hans van Dijken, Gregory Stephanopoulos



Circadian regulation of sunflower heliotropism, floral orientation, and pollinator visits
Hagop S. Atamian , Nicky M. Creux, Evan A. Brown, Austin G. Garner, Benjamin K. Blackman, Stacey L. Harmer



Macromolecular recognition directs calcium ions to coccolith mineralization sites
Assaf Gal , Richard Wirth, Joachim Kopka, Peter Fratzl, Damien Faivre, André Scheffel



The inhibition mechanism of human 20Sproteasomes enables next-generation inhibitor design
Jil Schrader , Fabian Henneberg, Ricardo A. Mata, Kai Tittmann, Thomas R. Schneider, Holger Stark, Gleb Bourenkov, Ashwin Chari



Spatial organization of chromatin domains and compartments in single chromosomes
Siyuan Wang , Jun-Han Su, Brian J. Beliveau, Bogdan Bintu, Jeffrey R. Moffitt, Chao-ting Wu, Xiaowei Zhuang



RIPK1 mediates axonal degeneration by promoting inflammation and necroptosis in ALS
Yasushi Ito , Dimitry Ofengeim, Ayaz Najafov, Sudeshna Das, Shahram Saberi, Ying Li, Junichi Hitomi, Hong Zhu, Hongbo Chen, Lior Mayo, Jiefei Geng, Palak Amin, Judy Park DeWitt, Adnan Kasim Mookhtiar, Marcus Florez, Amanda Tomie Ouchida, Jian-bing Fan, Manolis Pasparakis, Michelle A. Kelliher, John Ravits, Junying Yuan




Comment on "Open-ocean fish reveal an omnidirectional solution to camouflage in polarized environments"
Thomas W. Cronin , Yakir Luc Gagnon, Sönke Johnsen, N. Justin Marshall, Nicholas W. Roberts



Response to Comment on "Open-ocean fish reveal an omnidirectional solution to camouflage in polarized environments"
Parrish Brady , Alex Gilerson, George Kattawar, Jim Sullivan, Mike Twardowski, Heidi Dierssen, Molly Cummings




New Products
Stella Hurtley