LightSail 2 is Still Solar Sailing, But it’s Getting Lower and Lower with Each Orbit

LightSail 2 captured this image on 25 November 2019. The top end of Australia’s Northern Territory is in the center of the image. North is approximately at the bottom of the image. The city of Darwin is beneath the clouds near the tip of the sail’s middle boom. The island of New Guinea can be seen to the left. A lens flare also appears in the left part of the image. The sail appears curved due to the spacecraft's 185-degree fisheye camera lens. The image has been color corrected and some of the distortion has been removed. Image Credit: The Planetary Society

LightSail 2 deployed it solar sail five months ago, and it’s still orbiting Earth. It’s a successful demonstration of the potential of solar sail spacecraft. Now the LightSail 2 team at The Planetary Society has released a paper outlining their findings from the mission so far.

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NASA Will Be Building a Quiet, Supersonic Aircraft: the X-59

AA-1 Arrival at Edwards AFB, Ca.

NASA’s X-Plane Program has been around for 70 years. Over the course of those decades, the agency has developed a series of airplanes and rockets to test out various technologies and design advances. Now NASA has cleared the newest one, the X-59, for final assembly.

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ESA Astronaut Luca Parmitano will be Controlling a Rover From Space

Credit: ESA

Update: The Analog-1 experiment was a complete success! Astronaut Parmitano completed all the requirements within the specified time frame (one hour). This test is the first step in validating the teleoperation technology.

NASA has been rather up-front about its desire to send astronauts back to the Moon and on to Mars in the coming years. They are joined by multiple space agencies (such as the ESA, Roscosmos, the CNSA and the IRSO) who also wish to conduct their first crewed missions beyond Earth. However, what is often overlooked is the role teleoperated missions will play in the near-future – where humans and robots explore hand-in-hand.

For example, the ESA has embarked upon a series of experiments collectively named Analog-1, where astronauts control robots from space. Yesterday (Nov. 18th), ESA astronaut Luca Parmitano took control of a robot in the Netherlands from the ISS. This experiment and others like it will help prepare astronauts for future missions that will involve the exploration of hazardous or inaccessible off-world environments.

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This Artificial Leaf Turns Atmospheric Carbon Dioxide Into Fuel

Beads of rainwater on a poplar leaf act like lenses, focusing light and enlarging the leaf's network of veins. Credit: Bob King

There is no doubt that climate change is a very serious (and worsening) problem. According to a recent report by the Intergovernmental Panel on Climate Change (IPCC), even if all the industrialized nations of the world became carbon neutral overnight, the problem would continue to get worse. In short, it’s not enough to stop pumping megatons of CO2 into the atmosphere; we also have to start removing what we’ve already put there.

This is where the technique known as carbon capture (or carbon removal) comes into play. Taking their cue from nature, an international team of researchers from the University of Waterloo, Ontario, have created an “artificial leaf” that mimics the carbon-scrubbing abilities of the real thing. But rather than turning atmospheric CO2 into a source of fuel for itself, the leaf converts it into a useful alternative fuel.

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NASA is Testing a Coating to Help Astronauts and Their Equipment Shed Dangerous Lunar Dust

Buzz Aldrin's bootprint on the surface of the moon during the Apollo 11 mission on July 20, 1969. Credit: NASA

In the coming years, NASA is going back to the Moon for the first time since the Apollo Era. Rather than being a “footprints and flags” operation, Project Artemis is intended to be the first step in creating a sustainable human presence on the Moon. Naturally, this presents a number of challenges, not the least of which has to do with lunar regolith (aka. moondust). For this reason, NASA is investigating strategies for mitigating this threat.

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NASA Has a New Method For Cooling Down Electronics Crammed Together in a Spacecraft

Ground crew recover experiments that launched on the reusable New Shepard rocket on which the microgap-cooling technology flew twice. Credits: Blue Origin

One of the most exciting things about space exploration today is the ways in which it is getting more cost-effective. Between reusable rockets, miniaturized electronics, and low-cost launch services, space is becoming more accessible and populated. However, this also presents a challenge when it comes to conventional methods for maintaining spacecraft and satellites.

One of the biggest challenges is packing electronics into tighter spaces, which makes it harder to keep them at operational temperatures. To address this, engineers at NASA are developing a new system known as microgap-cooling technology. During two recent test flights, NASA demonstrated that this method is effective at removing heat and can also function in a weightless environment.

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A Private Company in China Plans to Launch Reusable Rockets by 2021

Hyperbola-2 is Chinese company i-Space's second rocket design, and China's first reusable rocket. Image Credit: i-Space.

A Chinese company is planning to launch a rocket with a reusable booster in 2021. The company is called i-Space, and the rocket is called Hyperbola-2. They’ve already developed and launched another rocket, called Hyperbola.

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Now that Many Countries Have the Ability to Destroy Satellites, the US is Figuring Out Ways to Make Them More Armored

An air-to-air left side view of an F-15 Eagle aircraft releasing an anti-satellite (ASAT) missile during a test. Credit: USAF

As long as human beings have been sending satellites into space, they have been contemplating ways to destroy them. In recent years, the technology behind anti-satellite (ASAT) weapons has progressed considerably. What’s more, the ability to launch and destroy them extends beyond the two traditional superpowers (the US and Russia) to include newcomers like India, China, and others.

For this reason, Sandia National Laboratories – a federal research center headquartered in New Mexico – has launched a seven-year campaign to develop autonomous satellite protection systems. Known as the Science and Technology Advancing Resilience for Contested Space (STARCS), this campaign will fund the creation of hardware and software that will allow satellites to defend themselves.

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An Army of Tiny Robots Could Assemble Huge Structures in Space

Two prototype assembler robots at work putting together a series of small units, known as voxels, into a larger structure. Credit: MIT/CBA/Benjamin Jenett

We live in a world where multiple technological revolutions are taking place at the same time. While the leaps that are taking place in the fields of computing, robotics, and biotechnology are gaining a great deal of attention, less attention is being given to a field that is just as promising. This would be the field of manufacturing, where technologies like 3D printing and autonomous robots are proving to be a huge game-changer.

For example, there is the work being pursued by MIT’s Center for Bits and Atoms (CBA). It is here that graduate student Benjamin Jenett and Professor Neil Gershenfeld (as part of Jenett’s doctoral thesis work) are working on tiny robots that are capable of assembling entire structures. This work could have implications for everything from aircraft and buildings to settlements in space.

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NASA Has a New, All-Electric Airplane

This artist's concept of NASA's X-57 Maxwell aircraft shows the plane's specially designed wing and 14 electric motors. Credits: NASA Langley/Advanced Concepts Lab, AMA, Inc.

Currently, commercial air travel accounts for 4 to 9% of the anthropogenic greenhouse gases that contribute to climate change. What’s worse, airplane emissions are on the rise thanks to rising populations and the increasingly globalized nature of our economy. Hence why NASA has been pursuing the development of electric aircraft these past few decades.

Much like reusable spacecraft and infrastructure, electric aircraft are part of NASA’s pursuit to make aerospace cheaper, more efficient and less harmful to the environment. Their efforts bore fruit in the form of the X-57 Maxwell – the first all-electric experimental aircraft – which was recently delivered to the NASA Armstrong Flight Research Center (AFRC) in Edwards, California.

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