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Category: space

The Eta Aquarid meteor shower is tonight, and it’s going to be a spectacular show. Here’s how, when, and where to watch the Eta Aquarids—and why they’ve been so unjustly ignored for so long.

The Eta Aquarids are a late spring meteor shower made up of the icy debris of Halley’s Comet. The comet is actually responsible for two separate meteor showers a year—this one and the Orionids, which occurs in October.

The Orionids are typically overshadowed by the Eta Aquarids, but that shouldn’t be seen as a judgement on the latter’s quality. All it means is that people have been sleeping through a really excellent meteor shower for no good reason. Tonight is your chance to rectify that.

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Researchers from Argonne National Laboratory developed a first-principles-based, variable-charge force field that has shown to accurately predict bulk and nanoscale structural and thermodynamic properties of IrO2. Catalytic properties pertaining to the oxygen reduction reaction, which drives water-splitting for the production of hydrogen fuel, were found to depend on the coordination and charge transfer at the IrO2 nanocluster surface. Image: Courtesy of Maria Chan, Argonne National Laboratory

Iridium oxide (IrO2) nanoparticles are useful electrocatalysts for splitting water into oxygen and hydrogen — a clean source of hydrogen for fuel and power. However, its high cost demands that researchers find the most efficient structure for IrO2 nanoparticles for hydrogen production.

A study conducted by a team of researchers at the U.S. Department of Energy’s (DOE’s) Argonne National Laboratory, published in Journal of Materials Chemistry A, describes a new empirical interatomic potential that models the IrO2 properties important to catalytic activity at scales relevant to technology development. Also known as a force field, the interatomic potential is a set of values describing the relationship between structure and energy in a system based on its configuration in space. The team developed their new force field based on the MS-Q force field.

“Before, it was not possible to optimize the shape and size of a particle, but this tool enables us to do this,” says Maria Chan, assistant scientist at Argonne’s Center for Nanoscale Materials (CNM), a DOE Office of Science User Facility.

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With long-term plans for in-space resource extraction in the form of asteroid mining, Deep Space Industries (DSI) is offering an exciting business opportunity. It is aiming to change the economics of space by providing the technical resources, capabilities and systems required to harvest, process, manufacture and market in-space resources. DSI is already generating revenue from commercial contracts, as well as government and university research projects.

The Disrupt Space summit brought together a large number of entrepreneurs from around Europe and the world who are intent on reinventing the space industry. A panel of judges chose Deep Space Industries as the winner among five finalists in a start-up pitch.

Spaceoneers caught up with Daniel Faber, Deep Space Industries’ CEO at the summit to hear about the company’s long-term plans and the exciting business opportunity in asteroid mining.

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I like it!

Inspiring the next generation of space explorers and scientists at Kennedy Space Center Visitor Complex, one of America’s most-loved visitor attractions, thousands of visitors were taken on a first of its kind, high-tech journey into space for Spirit of Exploration held during the Holidays in Space festive season from December 2015 through January 2016.

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(Phys.org)—The question of why space is three-dimensional (3D) and not some other number of dimensions has puzzled philosophers and scientists since ancient Greece. Space-time overall is four-dimensional, or (3 + 1)-dimensional, where time is the fourth dimension. It’s well-known that the time dimension is related to the second law of thermodynamics: time has one direction (forward) because entropy (a measure of disorder) never decreases in a closed system such as the universe.

In a new paper published in EPL, researchers have proposed that the second law of thermodynamics may also explain why is 3D.

“A number of researchers in the fields of science and philosophy have addressed the problem of the (3+1)-dimensional nature of space-time by justifying the suitable choice of its dimensionality in order to maintain life, stability and complexity,” coauthor Julian Gonzalez-Ayala, at the National Polytechnic Institute in Mexico and the University of Salamanca in Spain, told Phys.org.

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A Germany-based company, Paravan, is a leader in the electric wheelchair market and related accessories to adapt vehicles for people with disabilities. While they mostly work with vans and trucks, their latest product makes almost any car with enough trunk space extremely practical for someone using a wheelchair.

They installed it in a Tesla Model S to illustrate the functionalities of the product and the range of vehicles it can be installed on.

A robotic arm, called Robot 3000, can automatically lift a wheelchair (up to 25 kg – 55 lbs) from the trunk of a vehicle, then it moves the chair to the driver’s side and extends it all the way to the driver’s door.

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In.
1979, Arthur C. Clarke wrote a novel about an elevator to space. This.
is the story of the people who intend to build it.

SKY LINE is not just a story about trying to build the largest thing ever, it’s a story about our impulse to push limits and chase dreams, even when the results might not be seen until long after we’re gone. What drives a person to devote his life to pursuits that may take generations to achieve?

We set out to answer that question when we first went to Seattle to begin filming the folks involved in the Space Elevator Conference. We didn’t have much of a plan, but we knew everyone had a story – and we found the people that became the backbone of this film. For several years, we would revisit these eccentric and brilliant characters, until we had cobbled together a film called SKY LINE.

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Astronaut Tim Peake controlled a robot from the International Space Station (ISS). However, the robot wasn’t in space, but was located on Earth. The experiment was meant to prepare astronauts and technicians for future human-robotic missions to the Moon, Mars, and other celestial bodies.

As part of a unique experiment, astronaut Tim Peake successfully maneuvered a robot located on Earth from the ISS. The British astronaut took control from the Earth-based team and steered the robot on a simulated Martian landscape. The experiment took place at Airbus Defence and Space in Stevenage, dubbed “Mars Yard.”

The experiment, titled “Supervisory Control of Mars Yard Rover” or SUPVIS-M for short, was designed to one day allow humans, more specifically astronauts, sitting on board ISS or other deep space vehicles, to reliably control robots or machines over vast distances. The experiment is part of Europe’s METERON (Multipurpose End-To-end Robotics Operations Network) project. The overall idea is develop and optimize tasks and directional control.

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The moon has three large seas and a number of smaller lakes connected by rivers and rivulets located in its northern hemisphere, and one large lake in the south. NASA researchers previously believed the liquid to be ethane, which is produced when “sunlight breaks methane molecules apart”, said Alice Le Gall, a member of the Cassini radar team who led the study into the makeup of the moon’s liquid reservoirs.

Using radar observations of the heat given off by Ligeia Mare, as well as data from a 2013 experiment that bounced radio signals off of the sea, the team determined the compositions of the liquid sea and the sea bed by separating each of their contributions to the sea’s observed temperature.

This image from Cassini shows Ligeia Mare, the second largest known body of liquid on Titan.

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