Elu, loodus, teadus ja tehnoloogia
Author(s): F. Riboli, F. Uccheddu, G. Monaco, N. Caselli, F. Intonti, M. Gurioli, and S. E. Skipetrov
The frequency correlations of local density of states of a material are linked to its macroscopic features.
[Phys. Rev. Lett. 119, 043902] Published Tue Jul 25, 2017
Author(s): Jordan Muscatello, Enrique Chacón, Pedro Tarazona, and Fernando Bresme
The interfacial structure responsible for thermal resistance across liquid-vapor interfaces is shown to be connected to a low density fluid layer adsorbed at the liquid surface.
[Phys. Rev. Lett. 119, 045901] Published Tue Jul 25, 2017
Author(s): Riccardo RossiHigh-order diagrammatic expansions for fermionic systems can be computed by considering the sum of all connected Feynman diagrams at fixed positions of interaction vertices. The method is an improvement over conventional diagra…
Author(s): F. Martin Ciurana, G. Colangelo, L. Slodička, R. J. Sewell, and M. W. Mitchell
A new design for an atomic magnetometer utilizes so-called quantum nondemolition measurements to detect very weak magnetic-field signals.
[Phys. Rev. Lett. 119, 043603] Published Tue Jul 25, 2017
President of the CNES French Space Agency, Jean-Yves Le Gall, and ESA’s Josef Aschbacher discuss how cooperation will further benefit Earth observation activities and Copernicus
President of the CNES French Space Agency, Jean-Yves Le Gall, and ESA’s Josef Aschbacher discuss how cooperation will further benefit Earth observation activities and Copernicus
Watch the launch of ESA astronaut Paolo Nespoli and crewmates Sergey Ryazansky and Randy Bresknik to the International Space Station, on 28 July, live from 16:45 CEST
NASA successfully observed the Kuiper Belt object 2014 MU69 as it passed in front of a star — for two seconds.
As NASA’s Cassini spacecraft makes its unprecedented series of weekly dives between Saturn and its rings, scientists are finding — so far — that the planet’s magnetic field has no discernable tilt.
The spacecraft was steady as they come. That has big implications for future science.
The spacecraft was steady as they come. That has big implications for future science.
As NASA’s Cassini spacecraft makes its unprecedented series of weekly dives between Saturn and its rings, scientists are finding — so far — that the planet’s magnetic field has no discernable tilt.
Author(s): R. Arnold et al. (NEMO-3 Collaboration)The NEMO collaboration has performed the first experimental search for the rare neutrinoless quadruple beta decay.[Phys. Rev. Lett. 119, 041801] Published Mon Jul 24, 2017
Author(s): William E. East and Frans Pretorius
A spinning black hole may lose up to 9% of its mass by spontaneously growing “hair” in the form of excitations of a hypothetical particle field with a tiny mass.
[Phys. Rev. Lett. 119, 041101] Published Mon Jul 24, 2017
Author(s): Michael Hartmann, Gert-Ludwig Ingold, and Paulo A. Maia NetoNumerical results for experimentally measurable parameters are presented for the Casimir force between a sphere and a planar surface both made of gold.[Phys. Rev. Lett. 119, 043901]…
New studies of volcanic deposits indicate our satellite’s interior contains more water than we thought.
Space Science Image of the Week: Record-breaking simulation reproduces large-scale structure of the Universe to prepare for Euclid mission
Author(s): Pengfei Lan, Marc Ruhmann, Lixin He, Chunyang Zhai, Feng Wang, Xiaosong Zhu, Qingbin Zhang, Yueming Zhou, Min Li, Manfred Lein, and Peixiang LuLaser-induced proton dynamics of molecular hydrogen are probed with attosecond precision using a t…
Author(s): Samuel Häusler, Shuta Nakajima, Martin Lebrat, Dominik Husmann, Sebastian Krinner, Tilman Esslinger, and Jean-Philippe Brantut
A new technique produces an image of the flow of cold atoms through a channel, a potentially important tool for future cold-atom technology.
[Phys. Rev. Lett. 119, 030403] Published Fri Jul 21, 2017
Our week through the lens: 17-21 July 2017
Our week through the lens: 17-21 July 2017
Explore the International Space Station with Google Street View and ESA astronaut Thomas Pesquet
Explore the International Space Station with Google Street View and ESA astronaut Thomas Pesquet
Now you can relive the historic flyby with these releases.
Earth observation image of the week: a Sentinel-3 image over the Baltic Sea and surrounding countries, also featured on the Earth from Space video programme
NASA’s Mars Exploration Rover Opportunity recorded a panoramic view before entering the upper end of a fluid-carved valley that descends the inner slope of a crater’s rim.
NASA’s Mars Exploration Rover Opportunity recorded a panoramic view before entering the upper end of a fluid-carved valley that descends the inner slope of a crater’s rim.
Join us Friday, 21 July, at 10:00 CEST for the ‘Earth from Space’ video programme
Author(s): Quentin Brosseau and Petia M. VlahovskaAn electric field can pull apart a millimeter-sized oil drop, causing it to shed thin rings from its equator that then break up into tiny droplets.[Phys. Rev. Lett. 119, 034501] Published Thu Jul 20, 2017
Like, say, a large asteroid or dwarf planet.
A new book explores the famed astronomer’s career and lifetime of searching the skies.
Operations image of the week: For ESA’s flight dynamics team, a simple, low-tech white board is a good way to track the progress of aerobraking manoeuvres at Mars
Author(s): Mauro M. Monsalve-Mercado and Christian Leibold
A model explains why grid cells—neurons that are part of the brain’s positioning system—fire electrical pulses in hexagonal patterns.
[Phys. Rev. Lett. 119, 038101] Published Wed Jul 19, 2017
Or, what disintegrating planets tell us about solar system formation.
Technology image of the week: This test parachute deployed at supersonic velocity, demonstrating Europe’s capability to land safely from space
A pair of ESA rovers trundled around a Moon-like area of Tenerife by both day and night during a nine-day test campaign, gathering terabytes of data for follow-up analysis.
A pair of ESA rovers trundled around a Moon-like area of Tenerife by both day and night during a nine-day test campaign, gathering terabytes of data for follow-up analysis.
Author(s): F. Heiße, F. Köhler-Langes, S. Rau, J. Hou, S. Junck, A. Kracke, A. Mooser, W. Quint, S. Ulmer, G. Werth, K. Blaum, and S. Sturm
The most precise measurement to date of the proton mass finds a value that is 3 standard deviations lower than previous estimates.
[Phys. Rev. Lett. 119, 033001] Published Tue Jul 18, 2017
Author(s): Alexey Tikan, Cyril Billet, Gennady El, Alexander Tovbis, Marco Bertola, Thibaut Sylvestre, Francois Gustave, Stephane Randoux, Goëry Genty, Pierre Suret, and John M. Dudley
The Peregrine soliton, a special kind of soliton whose shape is localized in space and time, exists in a wider range of scenarios than previously thought.
[Phys. Rev. Lett. 119, 033901] Published Tue Jul 18, 2017
Author(s): Xiangyang Wang, Huanyang Chen, Hui Liu, Lin Xu, Chong Sheng, and Shining ZhuTransformation optics is used to design a device that both focuses light and diffracts it.[Phys. Rev. Lett. 119, 033902] Published Tue Jul 18, 2017
Keep your eyes on the skies with the Red Dots team.
Author(s): Guorui Wang, Zhaohe Dai, Yanlei Wang, PingHeng Tan, Luqi Liu, Zhiping Xu, Yueguang Wei, Rui Huang, and Zhong ZhangCreating a bulge in a graphene sheet offers the first measurement of the shear forces between graphene layers, an essential par…
A complex coordinated ‘dance’ between ESA and NASA deep-space tracking stations is following the international Cassini orbiter during its Grand Finale, 1.2 billion km away
A complex coordinated ‘dance’ between ESA and NASA deep-space tracking stations is following the international Cassini orbiter during its Grand Finale, 1.2 billion km away
This distant galaxy is a thousand times brighter than our own.
Space Science Image of the Week: Presenting the latest design of our Jupiter Icy Moons Explorer, Juice
New research finds the southern Amazon rainforest triggers its own rainy season. The finding highlights the close connection between the rainforest ecosystem and climate.
New research finds the southern Amazon rainforest triggers its own rainy season. The finding highlights the close connection between the rainforest ecosystem and climate.
This month, movements of the planets will put Mars almost directly behind the sun, from Earth’s perspective, causing curtailed communications between Earth and Mars.
This month, movements of the planets will put Mars almost directly behind the sun, from Earth’s perspective, causing curtailed communications between Earth and Mars.
Author(s): Tay-Rong Chang, Su-Yang Xu, Daniel S. Sanchez, Wei-Feng Tsai, Shin-Ming Huang, Guoqing Chang, Chuang-Han Hsu, Guang Bian, Ilya Belopolski, Zhi-Ming Yu, Shengyuan A. Yang, Titus Neupert, Horng-Tay Jeng, Hsin Lin, and M. Zahid HasanA three-dim…
Author(s): J. Perczel, J. Borregaard, D. E. Chang, H. Pichler, S. F. Yelin, P. Zoller, and M. D. Lukin
A proposed platform for studying topological effects in quantum optical systems involves 2D atomic emitter arrays in optical lattices.
[Phys. Rev. Lett. 119, 023603] Published Fri Jul 14, 2017
Author(s): Michele Dall’Arno, Sarah Brandsen, Alessandro Tosini, Francesco Buscemi, and Vlatko Vedral
In classical and quantum theories, there is a constraint on how much timelike information can be conveyed. New theoretical work predicts that the input-output correlations attainable when transmitting two elementary systems cannot depend on whether the systems are transmitted in series or in parallel.
[Phys. Rev. Lett. 119, 020401] Published Fri Jul 14, 2017
Author(s): C. Meyer et al.A beam of molecules is cooled through radiative rotation using a cryogenic storage ring without buffer gas, enabling natural lifetime measurements of lowest rotational levels in the molecules.[Phys. Rev. Lett. 119, 023202] Pub…
Author(s): Alpha A. Lee, Carla S. Perez-Martinez, Alexander M. Smith, and Susan PerkinExperiments and theory indicate that the interaction between ions in a concentrated salt solution acts over longer distances that previously thought.[Phys. Rev. Lett….
Our week through the lens: 10-14 July 2017
You won’t want to miss the best pictures we’ve ever taken of this Earth-sized storm.
Laser SETI will be the first all-sky-all-the-time SETI survey.
Join us Friday, 14 July, at 10:00 CEST for the ‘Earth from Space’ video programme
The final days of the LISA Pathfinder mission are some of the busiest, as controllers make final tests and get ready to switch off the gravitational pioneer next Tuesday.
The final days of the LISA Pathfinder mission are some of the busiest, as controllers make final tests and get ready to switch off the gravitational pioneer next Tuesday.
Author(s): Joakim Stenhammar, Cesare Nardini, Rupert W. Nash, Davide Marenduzzo, and Alexander Morozov
Simulations and theory indicate that the “synchronized swimming” of bacteria occurs in much sparser suspensions of the microorganisms than expected.
[Phys. Rev. Lett. 119, 028005] Published Thu Jul 13, 2017
No, Vesuvius is not erupting, but the wooded slopes of this iconic volcano are being ravaged by wildfires, as seen from space by the Copernicus Sentinel-2 mission
Now you can find exoplanets while playing an online game.
Why planetary scientists want to capture the sounds of an icy world.
A dried-out river valley with numerous tributaries is seen in this recent view of the Red Planet captured by ESA’s Mars Express.
A dried-out river valley with numerous tributaries is seen in this recent view of the Red Planet captured by ESA’s Mars Express.
Operations image of the week: The flight controllers who will operate BepiColombo on its ambitious mission to Mercury meet their robotic explorer
Faced with the need to teach physics to the visually impaired, in this paper we propose a way to
demonstrate the dependence of distance and time in a pendulum experiment to blind students. The
periodic oscillation of the pendulum is translated, by an…
Images of Jupiter’s Great Red Spot reveal a tangle of dark, veinous clouds weaving their way through a massive crimson oval.
Images of Jupiter’s Great Red Spot reveal a tangle of dark, veinous clouds weaving their way through a massive crimson oval.
Technology image of the week: ESA’s GomX-4B CubeSat is on the way to launch this September
Author(s): G. Junot, G. Briand, R. Ledesma-Alonso, and O. DauchotExperiments show that, unlike an ideal gas, an active-matter system comprised of self-propelled disks does not have a well-defined mechanical pressure.[Phys. Rev. Lett. 119, 028002] Publi…
Author(s): Kendrick M. Smith and Simone FerraroA new method of analyzing cosmic microwave background data could isolate signatures from the so-called reionization period that occurred a few hundred million years after the big bang.[Phys. Rev. Lett. 119…
Each Galileo satellite must go through a rigorous test campaign to assure its readiness for space
Over the last few months, a chunk of Antarctica’s Larsen C ice shelf has been hanging on precariously as a deep crack cut across the ice. Witnessed by the Copernicus Sentinel-1 mission, a lump of ice more than twice the size of Luxembourg has now broken off, spawning one of the largest icebergs on record and changing the outline of the Antarctic Peninsula forever.
Over the last few months, a chunk of Antarctica’s Larsen C ice shelf has been hanging on precariously as a deep crack cut across the ice. Witnessed by the Copernicus Sentinel-1 mission, a lump of ice more than twice the size of Luxembourg has now broken off, spawning one of the largest icebergs on record and changing the outline of the Antarctic Peninsula forever.
While on the search for exoplanets, the team came across this tiny companion.
Take a closer look at the fast-spinning system that spawned an exoplanet we can image… but don’t understand.
The car-size NASA rover on a Martian mountain, Curiosity, has begun its long-anticipated study of an iron-bearing ridge forming a distinctive layer on the mountain’s slope.
This science pass offered front-row seats to the planet’s most iconic feature, the Great Red Spot.
In the search for planets similar to our own, an important point of comparison is the planet’s density.
The car-size NASA rover on a Martian mountain, Curiosity, has begun its long-anticipated study of an iron-bearing ridge forming a distinctive layer on the mountain’s slope.
This science pass offered front-row seats to the planet’s most iconic feature, the Great Red Spot.
In the search for planets similar to our own, an important point of comparison is the planet’s density.
Author(s): A. E. Gleason, C. A. Bolme, E. Galtier, H. J. Lee, E. Granados, D. H. Dolan, C. T. Seagle, T. Ao, S. Ali, A. Lazicki, D. Swift, P. Celliers, and W. L. Mao
Laser pulses can turn liquid water into an exotic type of ice within a few nanoseconds.
[Phys. Rev. Lett. 119, 025701] Published Tue Jul 11, 2017
Human spaceflight image of the week: Expedition 52 crew remember fellow cosmonauts at Red Square in Moscow
It’s basically a solar system without a sun.
The star too swift … the planet too far … so far, this system doesn’t make much sense.
Space Science Image of the Week: The BepiColombo spacecraft modules stacked up in launch configuration for the last time in Europe
Author(s): Julen Ibañez-Azpiroz, Manuel dos Santos Dias, Benedikt Schweflinghaus, Stefan Blügel, and Samir Lounis
Theory and simulations show that strongly renormalized spin-flip interactions of nonmagnetic atoms can be measured by inelastic scanning tunneling spectroscopy.
[Phys. Rev. Lett. 119, 017203] Published Fri Jul 07, 2017
Author(s): Vishwa Pal, Chene Tradonsky, Ronen Chriki, Asher A. Friesem, and Nir DavidsonA circle of interacting lasers is a new model system for exploring topological defects, disordered structures that show up in a wide variety of seemingly unrelated …
Our week through the lens: 3-7 July 2017
Proxima Centauri b may not be alone out there.
The 2016 announcement of Proxima Centauri b was a watershed moment in exoplanet research. Not only had researchers found a potentially habitable Earth-mass planet, but it was at the nearest star to Earth. …
Life on Mars … does it exist? Depending on when you last checked in with news about the Red Planet, you could probably be convinced either way. As we discover more and more about the composition and planetary dynamics of Mars, there has been cau…
Rockets and spacecraft may get us to Mars, but food must nourish us on the journey. Now researchers are using the International Space Station to look at how much food will be needed on a spacecraft heading to the Moon, Mars or beyond. By t…
Rockets and spacecraft may get us to Mars, but food must nourish us on the journey. Now researchers are using the International Space Station to look at how much food will be needed on a spacecraft heading to the Moon, Mars or beyond. By t…
During a simulated space mission underwater last week, ESA tested an ingenious concept to bring astronauts safely back to base if they are incapacitated during lunar exploration.
Four ‘aquanauts’, including ESA astronaut Pedro Duque and NASA astronaut Kjell Lindgren, took part in NASA’s 22nd Extreme Environment Mission Operations (NEEMO-22) mission, spending 10 days in the Aquarius habitat 20 m underwater off the coast of the Florida Keys.
During a simulated space mission underwater last week, ESA tested an ingenious concept to bring astronauts safely back to base if they are incapacitated during lunar exploration.
Four ‘aquanauts’, including ESA astronaut Pedro Duque and NASA astronaut Kjell Lindgren, took part in NASA’s 22nd Extreme Environment Mission Operations (NEEMO-22) mission, spending 10 days in the Aquarius habitat 20 m underwater off the coast of the Florida Keys.
With the Copernicus Sentinel-3A satellite fully fledged and its data freely available, the task of monitoring and understanding our changing planet has been made that much easier. Seeing the effect spring has on our plant life is just one …