NASA Engineer Has A Great Idea for a High-Speed Spacedrive. Too Bad it Violates the Laws of Physics

Helical engine architecture. Credit: David Burns

When a NASA engineer announces a new and revolutionary engine that could take us to the stars, it’s easy to get excited. But the demons are in the details, and when you look at the actual article things look far less promising.

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Planet Sizes Matter for Habitability Too.

In order to be considered habitable, a planet needs to have liquid water. Cells, the smallest unit of life, need water to carry out their functions. For liquid water to exist, the temperature of the planet needs to be right. But how about the size of the planet?

Without sufficient mass a planet won’t have enough gravity to hold onto its water. A new study tries to understand how size affects the ability of a planet to hold onto its water, and as a result, its habitability.

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Robotic Spiders to Explore the Moon? Yes, Please!

Credit: Spacebit

There is no doubt that one of the hallmarks of the modern space age is the way it is becoming increasingly democratic. In addition to more space agencies entering the fray, private aerospace companies are contributing like never before. It is no surprise then that there are innovators and entrepreneurs that want to increase public access and participation in space exploration.

This is what UK startup Spacebit and its founder, Pavlo Tanasyuk, hope to accomplish with their decentralized aerospace company. Central to their vision is the Walking Rover, a four-legged robotic explorer that they plan to deploy to the lunar surface in the coming years. This rover will represent a number of firsts for space exploration, which includes being the first commercial lunar mission sent by the UK.

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It Looks Like it’s Working! NASA InSight’s Mole is Making Progress Again Thanks to the Arm Scoop Hack

The scoop on InSight's instrument arm exerting pressure on the Mole. This may supply the necessary friction to get the Mole going again. Image Credit: NASA/DLR

NASA and the DLR are making some progress with the Mole. The Mole has been stuck for months now, and NASA/DLR have been working to get it unstuck. After removing the mole’s housing to get a better look at it with InSight’s cameras, the team came up with a plan.

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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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This Dried Up Riverbed Shows that Water Once Flowed on the Surface of Mars

This image from ESA’s Mars Express shows a dried-up river valley on Mars named Nirgal Vallis. Copyright ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO

From some viewpoints, Mars is kind of like a skeleton of Earth. We can see that it had volcanoes, oceans, and rivers, but the volcanoes no longer fume and the water is all gone. A new image from the ESA’s Mars Express drives the point home.

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A Satellite Just Launched Whose Job is to Extend the Life of Geosynchronous Satellites

MEV-1, Northrop-Grumman's Mission Extension Vehicle, can extend the life of geosynchronous orbit satellites. Image Credit: Northrop-Grumman, Space Logistics LLC.

Space Logistics LLC, a subsidiary of Northrop Grumman, has launched a satellite that can extend the life of other satellites. The satellite is called MEV-1, or Mission Extension Vehicle-1. MEV-1 is the first of its kind.

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Lava Flows on Venus Suggest That the Planet Was Never Warm and Wet

Artist's impression of the surface of Venus, showing its lightning storms and a volcano in the distance. Credit and ©: European Space Agency/J. Whatmore

Venus is often referred to as “Earth’s sister planet“, owing to the number of similarities between them. Like Earth, Venus is a terrestrial (aka. rocky) planet and it resides with our Sun’s Circumstellar Habitable Zone (CHZ). And for some time, scientists have theorized that billions of years ago, Venus had oceans on its surface and was habitable – aka. not the hot and hellish place it is today.

However, after examining radar data on the Ovda Fluctus lava flow, a team scientists at the Lunar and Planetary Institute concluded that the highlands on Venus are likely to be composed of basaltic lava rock instead of granite. This effectively punches a hole in the main argument for Venus having oceans in the past, which is that the Ovda Regio highlands plateau formed in the presence of water.

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This is What Moondust Looks Like When You Remove All the Oxygen. A Pile of Metal

On the left side of this before and after image is a pile of simulated lunar soil, or regolith; on the right is the same pile after essentially all the oxygen has been extracted from it, leaving a mixture of metal alloys. Both the oxygen and metal could be used in future by settlers on the Moon. Image Credit: Beth Lomax - University of Glasgow

The Moon has abundant oxygen and minerals, things that are indispensable to any space-faring civilization. The problem is they’re locked up together in the regolith. Separating the two will provide a wealth of critical resources, but separating them is a knotty problem.

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