Such an engine is currently being used on the Dawn mission to the dwarf planet Ceres. However,
And the more communication satellite constellations circulating our planet, the closer we get to a more connected world d
can be hard to read when the Marine moves between bright sunlight and the shade of a building,
#MIT Invention Turns Salt water Into Drinking water Using Solar power From plants to people, every living thing on this planet needs water.
Using the sun instead of fossil fuels to power a desalination plant isn't a totally new idea.
But the movement of the earth's tectonic plates isn't like the smooth movement of gears in a machine.
the earth jerks in a sudden and devastating release, cracking along a fault, or fracture in the earth's crust.
is a fault where one part of the earth is pushed up and over another section of the earth.
since the sun's rays don't reach that far. But each GENESI node and sensor includes a miniature wind turbine that harvests energy from passing trains.
what could become an information black hole without realizing it. A team of swiss engineers hope to employ DNA as a method to store more data.
it no longer makes sense to throw our digitized cultural documents into an informational black hole
#Super-Strong Material Inspired By Squid Teeth Is Self-Healing A team of researchers led by engineers from Penn State university has created the first material that heals itself in the presence of water, according to a study published yesterday in Scientific Reports.
#Plug Your Toaster Into the Sun Sunport lets you use solar power at homeithout the panels.
but it will have the advantage of being able to continue producing power even after the sun goes down.
The 800 rows follow the sun as it tracks across the heavens, whirring quietly every few minutes as their shadows slip further east.
In contrast, water and sunlight are available in vast abundance. Scientists at the Max Planck Institute for Solid State Research in Stuttgart and from LMU Munich have created now a material that uses light to produce the versatile energy source hydrogen from water.
What is needed is a substance that directly uses the energy of sunlight to split the hydrogen-oxygen bonds in water.
From the lab bench to practical applications Despite the early success, these materials are still far from being considered for industrial hydrogen generation using water and sunlight.
and hydrogen fuel cells,"said Yugang Sun, a nanoscience scientist in Argonne's Nanoscience and Technology Div."
Earth-abundant materials that could provide low-cost alternatives to platinum-based catalysts. Platinum is an extremely efficient catalyst for splitting water into hydrogen and oxygen
and offering new conceptual tools that can be applied more broadly in the quest to split water with sunlight.
"Excited electrons When building a sun-capturing electrode, scientists aim to use as much of the solar spectrum as possible to excite electrons in the electrode to move from one state to another,
In contrast to conventional solar photovoltaic cells that produce electricity directly from sunlight, solar thermal generation of energy is developed as a large power plant in
which acres of mirrors precisely reflect sunlight onto a solar receiver. That energy has been used to heat a fluid that in turn drives a turbine to produce electricity.
and protect our planet for future generations"said EPA Administrator Gina Mccarthy.""Today's announcement presents a major environmental, social and public health opportunity for the U s,
That 20 percent comes directly from sunlight, which is harvested by a flat solar panel on top of the battery.
Remember that the ISS is orbiting more than 320 km (200 miles) above Earth and travelling at around 29,772 km h (18,500 mph),
"I said to them how wonderful Earth must look from up there, "he added, saying the total conversation lasted around 50 seconds in total."
but when you look down at Earth it is full of colour. I basically asked who he was
but says the potential of this research could radically change the way modern society derives its power. f we can convert all the human-made structures on the surface of Earth,
and we can have distributed food and fuel across the planet, he told Hall at the ABC
#This transparent lithium-ion battery charges itself with sunlight Researchers in Japan have invented a rechargeable lithium-ion battery that can charge itself using sunlight-no solar cell required.
when the battery is exposed to sunlight, it becomes tinted to about 30 percent light transmittance,
they were able to facilitate charging via sunlight or other bright sources of illumination. In testing
NASA finds evidence of liquid water flowing on the surface of Mars NASA told us it was announcing something big today,
the space agency says images from the Mars Reconnaissance Orbiter (MRO) have revealed compelling evidence of liquid brines flowing across the planet's surface.
The seasonal rivers of salty water mean there's a greater chance of Mars being able to support life now or in the future.
or dark streaks on the surface of Mars during warmer weather -while it was suspected that trickling water was the cause,
the summer months on Mars see a shallow subsurface flow of briny water coming down from the planet's canyons and crater walls.
or it could be created by some kind of condensation process in the atmosphere of Mars."Our quest on Mars has been to'follow the water'in our search for life in the universe,
-albeit briny-is flowing today on the surface of Mars."Perhaps the biggest potential consequence of the discovery is that visitors to the Red planet could use the water that's hidden away to support themselves
then these sites would be prime candidates for landing spots on the first manned mission to the planet."
-which is why the discovery that water is now likely to be regularly flowing across Mars is commented so stunning
"The brine on Mars might not directly support life but it suggests that the arid world isn't as dry as once thought.
when the sun isn't shining. The idea of a lithium-air or lithium-oxygen battery isn't new scientists have known for a while that these types of batteries can hold up to 10 times the charge of today's lithium-ion packs (imagine not having to charge your phone for a whole week.
It works with solar radiation and the cooling is achieved by means of a thermodynamic adsorption-desorption cycle lasting 24 hours.
but that's like scorching the earth,"said Reddy.""I wanted to develop tools to go in
The Synthetic Muscle could be used in robotics in deep space travel such as travel to Mars because of its radiation resistance."
"Based on the good results we had on planet Earth, the next step is to see how it behaves in a space environment,
"From there the next step might be to use it on a mission to Mars."Early Connection with PPPLRASMUSSEN began working with PPPL in 2007 just four years after she started Ras Labs. She received her first patent for a synthetic muscle in 1998.
and was equivalent to a trip from earth to Mars and back. A second test of 45 hours was enough to be equivalent to a trip to Jupiter
and beyondrasmussen and Gentile found that there was no change in the strength, electroacivity, or durability of the material due to the radiation although there was a slight change in color.
When the material returns to Earth in July, it will be tested and compared with identical materials that remained On earth.
The International space station is an international science laboratory in low Earth orbit where astronauts conduct scientific research in biology, human biology, astronomy, meteorology and other fields in a gravity-free environment.
which plants use the energy in sunlight to synthesize carbohydrates from carbon dioxide and water. However
"When sunlight is absorbed, photo-excited electron? hole pairs are generated in the silicon and titanium oxide nanowires,
the Berkeley team achieved a solar energy conversion efficiency of up to 0. 38-percent for about 200 hours under simulated sunlight,
wind turbines Karl A. Gschneidner and fellow scientists at the U s. Department of energy's Ames Laboratory have created a new magnetic alloy that is an alternative to traditional rare-earth permanent magnets.
"Previous attempts to use cerium in rare-earth magnets failed because it reduces the Curie temperature--the temperature above
and co-authored by Arjun K. Pathak, Mahmud Khan, Karl. A. Gschneidner, Ralph W. Mccallum, Lin Zhou, Kewei Sun, Kevin W. Dennis, Matthew
because of the radiation pressure the tails of comets typically point away from the Sun. Radiation pressure has also been proposed as the propulsion for the solar sails.
under the sunlight, a small portion of solar energy(<1 percent) captured by chlorophyll is emitted as fluorescence.
because it is obscured by the much higher intensity of solar radiation. The group discovered a few wavelengths of light that allow measuring the specific fluorescence signal from photosynthesis. The team's fluorescence measurement system can record radiation at high resolution with a frequency of 5 minutes,
These limitations in both technologies mean that patients may see fuzzy, comet-like shapes or blurred outlines,
#Molecular cell cycle clock discovered that controls stem cell potency Singapore scientists from A*STAR's Genome Institute of Singapore (GIS) have, for the first time,
#Depth-sensing camera gleans 3-D information in bright sunlight as well as darkness Depth-sensing cameras,
the inability to work in bright light, especially sunlight. The key is to gather only the bits of light the camera actually needs.
inspection of shiny parts and sensing for robots used to explore the moon and planets.
we're sending a lot more energy to that spot than the energy sent by the sun,
In polar regions of the moon, where the sun is always at a low angle, a vision system that is able to eliminate the glare is essential."
"says Phd candidate Daniel Hunter from the UNSW School of Biological, Earth and Environmental sciences.""The devil is the obvious answer.
Arraysince before Newton held a prism to a ray of sunlight and saw a spectrum of colour,
They used a robotic system developed at SSRL to study the crystals at SLAC's LCLS, an X-ray laser that is one of the brightest sources of X-rays on the planet.
#Artificial leaf harnesses sunlight for efficient fuel production Generating and storing renewable energy, such as solar or wind power, is a key barrier to a clean energy economy.
a cost-effective method of producing fuels using only sunlight, water, and carbon dioxide, mimicking the natural process of photosynthesis in plants
The photoanode uses sunlight to oxidize water molecules, generating protons and electrons as well as oxygen gas.
converts 10 percent of the energy in sunlight into stored energy in the chemical fuel,
"Our work shows that it is indeed possible to produce fuels from sunlight safely and efficiently in an integrated system with inexpensive components,
"It's just the same as wanting to look at Pluto in more detail or establishing that pentaquarks are out there,
lightweight solar cells track the sun Solar cells capture up to 40 percent more energy when they can track the sun across the sky,
but conventional, motorized trackers are too heavy and bulky for pitched rooftops and vehicle surfaces.
but these roofs would need significant reinforcing to support the weight of conventional sun-tracking systems.
keeping their surfaces more perpendicular to the sun's rays.""The beauty of our design is,
the solar cell would split into tiny segments that would follow the position of the sun in unison."
"Solar cell researchers think of tracking in terms of how much of a solar panel the sun can"see.""When the panel is at an angle,
when the sun's rays are coming in at lower angles, they raise the effective area that is soaking up sunlight.
To explore patterns, the team of engineers worked with paper artist Matthew Shlian, a lecturer in the U-M School of art and Design.
and natural gas using only sunlight. And imagine using those fuels to heat our homes or run our cars without adding any greenhouse gases to the atmosphere.
a type of solar power based on the ability of plants to transform sunlight, carbon dioxide and water into sugars.
#Artificial'plants'could fuel the future The developer of a new technology that turns sunlight into liquid fuel,
and natural gas using only sunlight. And imagine using those fuels to heat our homes or run our cars without adding any greenhouse gases to the atmosphere.
a type of solar power based on the ability of plants to transform sunlight, carbon dioxide and water into sugars.
Hills and Potholes Many of these types of flexible electronic devices will rely on thin films of organic materials that catch sunlight
the NUS team, led by Associate professor Boon Chuan Low and his postdoctoral fellow Dr Jichao Sun,
the NUS team, led by Associate professor Boon Chuan Low and his postdoctoral fellow Dr Jichao Sun,
#Scientists reveal how stem cells defend against viruses Scientists from the Institute of Molecular and Cell biology (IMCB), a research institute under the Agency for Science, Technology and Research (A*STAR),
Their invention shunts away the heat generated by a solar cell under sunlight and cools it in a way that allows it to convert more photons into electricity.
The material is transparent to the visible sunlight that powers solar cells, but captures and emits thermal radiation,
"Solar arrays must face the sun to function, even though that heat is detrimental to efficiency, "Fan said."
"Our thermal overlay allows sunlight to pass through, preserving or even enhancing sunlight absorption, but it also cools the cell by radiating the heat out
and improving the cell efficiency.""A cool way to improve solar efficiency In 2014, the same trio of inventors developed an ultrathin material that radiated infrared heat directly back toward space without warming the atmosphere.
when the sun is beating down. The Stanford team tested their technology on a custom-made solar absorber--a device that mimics the properties of a solar cell without producing electricity--covered with a micron-scale pattern designed to maximize the capability to dump heat
but requires the preservation of the visible spectrum of sunlight for either practical or aesthetic reasons."
"Cyanobacteria have adapted to live in ponds that are drenched by sun, blanketed by shade, frozen solid in the winter, not to mention the other organisms with
Results from the METEOR trial Patients with advanced kidney cancer live for nearly twice as long without their disease progressing
about results from the first 375 patients out of a total of 658 patients recruited to the phase III clinical METEOR trial comparing cabozantinib with everolimus,
The results of the METEOR trial indicate that cabozantinib is able to shrink tumours and slow down tumour growth much better than current standard treatment in patients who previously received VEGFR-targeted drugs.
"An early evaluation of overall survival from the ongoing METEOR trial has shown a strong trend indicating that survival may be improved in patients receiving cabozantinib compared to standard therapy.
Patients recruited to the METEOR clinical trial, which started in June 2013, were randomised to receive either 60 mg a day of cabozantinib in tablet form,
The METEOR trial is also evaluating the safety of the treatment. The incidence of serious side effects was similar for both drugs
"The METEOR results are important from a clinical and scientific point of view. Overcoming mechanisms of tumour escape
The results of the METEOR study are remarkable and most likely will be practice changing. This, together with the report of the Checkmate 025 study, are definitely among the highlights of this congress."
and more suited to climate change in order to feed Earth's increasing population. Currently European union GMO regulations don't allow for food with added DNA.
For instance, when there is a change in temperature due to the car's air-conditioner or heat from the sun,
and reducing it to a number of overlapping 2-D images that contain all the same information, much like making maps of Earth,
what happens in common Mercator projections of Earth, in which Africa and Greenland appear as the same size.
"explains Wei Sun, a lead author on the paper.""The grown embryoid body is uniform and homogenous,
"continues Wei Sun."However, these don't show the same cell uniformity and homogenous proliferation.""""I think that we've produced a 3-D microenvironment
"concludes Wei Sun."This would promote different cell types developing next to each other --which would lead the way for growing micro-organs from scratch within the lab
Sun Accused of Stealing Planetary Objects from Another Star Technology: Introducing the First Vehicle Powered by Evaporation More Science:
When stars shine they are converting that mass back into energy, as described by Albert Einstein's famous equation E=mc2 (energy=mass x speed of light squared).
additional energy is constantly being generated by stars as they fuse elements like hydrogen and helium together,
such as another star, a planet, or, very occasionally, a telescope mirror.""Astronomers have known that the universe is slowly fading out since the late 1990s.
#Exoplanet 51 Eridani b: A Red-hot Young Jupiter Around Distant Star (Infographic) Astronomers have photographed directly a planet not unlike Jupiter orbiting 51 Eridani, a sunlike star 96 light-years from Earth.
The star is young, only 20 million years old (compared with the sun's 4. 6 billion years).
The planet, 51 Eridani b, still glows with the heat of its formation. Scientists used the Gemini Planet Imager, an instrument on the Gemini South telescope in Chile,
to make the discovery. The Gemini Planet Imager is designed an instrument specifically for directly imaging exoplanets around distant stars s
#Saltwater lamp could replace dangerous kerosene lights The majority of inhabitants on the Philippines7000 islands do not have access to electricity.
Instead, they rely primarily on kerosene powered lamps to provide light sources at night, which are not only hazards and pollutants,
but also very expensive and inconvenient to refill. Hoping to provide a solution, SALT IS an efficient,
but that like scorching the earth, said Reddy. wanted to develop tools to go in and modify very specific epigenetic marks in very specific places to find out what individual enhancers are doing.
#Star Pair#s Dusty Disk Shines Light on Planet formation Astronomers using the Gemini South telescope in Chile have discovered striking new evidence for planet formation in a dusty disk surrounding
a pair of stars in Sagittarius. The team took advantage of an offering for Early Science using the Gemini Planet Imager to study infrared light scattered off dust grains in the disk around the binary system V4046 Sgr.
Left: J-band polarized intensity (P#)images. Right: P#scaled by r2, where r is the distance in pixels from the central binary, corrected for projection effects.
The coronagraph is represented by the black filled circles. he Gemini Planet Imager allows us to study nearby planet forming disks in sufficient detail that we can obtain direct-image evidence for young planets in orbits similar to those of the giant planets
in our own solar system, says Valerie Rapson of the Rochester Institute of technology, who led the research team.
the GPI imaging reveals an intriguing double ring structure around the V4046 Sgr binary that is most likely due to the formation of a giant planet
(or planets) at some 4-12 times the Earth-Sun distance (approximately between Jupiter and Uranus,
if orbiting our Sun). his is perhaps the best such evidence yet for planet formation so close to a binary system,
Analysis of the data also indicates that the dust grains orbiting the star are sorted by particle size,
as predicted by recent planet formation models. The result is published in The Astrophysica i
#Scientists discover new treatment for dementia Pushing new frontiers in dementia research, Nanyang Technological University,
The destruction of the Amazon is bad news for the whole planet. Let start with the good news part of the story,
which plants use the energy in sunlight to synthesize carbohydrates from carbon dioxide and water. However
Yang says. hen sunlight is absorbed, photo-excited electron#hole pairs are generated in the silicon and titanium oxide nanowires,
With this approach, the Berkeley team achieved a solar energy conversion efficiency of up to 0. 38-percent for about 200 hours under simulated sunlight,
It akin to the difference between looking at the stars with a standard telescope versus an observatory-quality refractor telescope, according to Yale chair of neurology, Dr. David Hafler, who worked with Montgomery to bring Cytof to Yale. t allows
and other synthetic versions are commercially available. he precursors are all earth abundant, so it available in reasonably low cost, says Sanghera.
but it won crack. t like navigating through the asteroid belt, you create a tortuous path:
This pioneering Earth Explorer mission will provide accurate and timely profiles of the world winds as well as information on aerosols and clouds.
which is beamed towards Earth. This light bounces off air molecules and small particles such as dust, ice and droplets of water in the atmosphere.
The daily vertical migration of marine plankton toward sunlight, is one example, and it the way many microbes find food. f you can design particles that can feel their environment
you will see flashes of light every time the wheel is at the perfect spot for sunlight to hit it.
Autonomy in the sea The system is similar to one that Williams developed for NASA following the loss of the Mars Observer, a spacecraft that, days before its scheduled insertion into Marsorbit in 1993,
we can use Earth-orbiting satellites, but they don penetrate much below the surface, Williams says. ou could send sea vessels which send one autonomous vehicle,
season and year along with weather events and increased use of intermittent renewable energy from the sun
#Astronomers discover powerful aurora beyond solar system Astronomers have discovered the first aurora ever seen in an object beyond our Solar system.
The aurora similar to the famous orthern Lightson Earth is 10,000 times more powerful than any previously seen.
They found the aurora not from a planet, but from a low-mass star at the boundary between stars and brown dwarfs.
The discovery reveals a major difference between the magnetic activity of more-massive stars and that of brown dwarfs and planets,
the scientists said. ll the magnetic activity we see on this object can be explained by powerful auroras,
his indicates that auroral activity replaces solar-like coronal activity on brown dwarfs and smaller objects,
18 light-years from Earth, has characteristics unlike any seen in more-massive stars. Brown dwarfs, sometimes called ailed stars,
are objects more massive than planets, yet too small to trigger the thermonuclear reactions at their cores that power stars.
The astronomers said their observations of LSR J1835+3259 indicate that the coolest stars and brown dwarfs have outer atmospheres that support auroral activity,
rather than the type of magnetic activity seen on more-massive and hotter stars. The discovery also has implications for studying extrasolar planets.
The aurora the scientists observed from LSR J1835+3259 appears powered by a little-understood dynamo process similar to that seen on larger planets in our Solar system.
This process is different from that which causes the Earth auroral displays the planet magnetic field interacting with the solar wind. hat we see on this object appears to be the same phenomenon wee seen on Jupiter, for example,
but thousands of times more powerful, Hallinan said. his suggests that it may be possible to detect this type of activity from extrasolar planets,
many of which are significantly more massive than Jupiter, he added e
#Real-time data for cancer therapy In the battle against cancer, which kills nearly 8 million people worldwide each year,
doctors have in their arsenal many powerful weapons, including various forms of chemotherapy and radiation.
What they lack, however, is good reconnaissance a reliable way to obtain real-time data about how well a particular therapy is working for any given patient.
Magnetic resonance imaging and other scanning technologies can indicate the size of a tumor, while the most detailed information about how well a treatment is working comes from pathologistsexaminations of tissue taken in biopsies.
Yet these methods offer only snapshots of tumor response and the invasive nature of biopsies makes them a risky procedure that clinicians try to minimize.
#Perseid meteors to light up summer skies The evening of Wednesday 12 august into the morning of Thursday 13 august sees the annual maximum of the Perseid meteor shower.
This year, a new moon makes prospects for watching this natural firework display particularly good. A Perseid seen in August 2010 above the four enclosures of the European Southern Observatory Very Large telescope at Paranal, Chile.
Meteors (popularly known as hooting stars are the result of small particles, some as small as a grain of sand, entering the Earth atmosphere at high speed.
The tail of the Comet Swift-Tuttle, which last passed near the Earth in 1992, leaves such debris in the Earth path.
On entering the atmosphere, these particles heat the air around them, causing the characteristic streak of light seen from the ground.
This shower of meteors appears to originate from a single point, called a adiant in the constellation of Perseus, hence the name.
The shower is active each year from around 17 july to 24 august although for most of that period only a few meteors an hour will be visible.
From the UK, the peak of the shower occurs in the late evening on 12 august to the morning of 13 august,
when as many as 100 meteors or more may be seen each hour. This year, for the first time since 2007, this peak coincides with a new moon on 14 august,
creating ideal dark sky conditions for meteor-spotting. Perseid shooting star near the Pleiades over Woodingdean, Sussex, on the early morning of the 13th,august 2013.
Credit: Darren Baskill. Professor Mark Bailey, Director of Armagh Observatory, said he Perseid meteor shower is one of the best and most reliable meteor showers of the year.
The french astronomer Jeremie Vaubaillon has predicted also that the Perseids may this year produce an outburst of activity around 7. 40pm BST on 12th august.
Although it is unfortunately still daylight at that time in the UK and Ireland, it is just possible that enhanced rates may persist for a few hours around this time
and so be observable soon after dark. nlike many celestial events meteor showers are straightforward to watch,
Advice from experienced meteor observers is to wrap up well and set up a reclining chair to allow you to look up at the sky in comfort.
Although the number of visible meteors is hard to predict accurately, at least one every few minutes can be expected.
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