Toggle light / dark theme

Today in Science History: The third manned lunar landing mission, Apollo 13, kicked off with the launch of the Odyssey spacecraft

On April 13, the crew had already traveled 200,000 miles away from Earth when one of the oxygen tanks exploded, forcing them to abort the mission and head back, fighting for their own survival.

You may be familiar with the immortal line “Houston, we have a problem,” which was supposedly uttered by Lovell in the 1995 film “Apollo 13.” Actually, the real quote was “Houston, we’ve had a problem,” and it was Swigert who said it.

#FlipFacts

Read more

Scientists Have Created A Star Trek-Like Plane That Flies Using ‘Ion Thrusters’ And No Fuel

Scientists have taken a major step towards creating an aircraft of the future, one powered by an ion drive rather than using moving parts and fuel like conventional aircraft.

In a paper published today in Nature, a team led by Steven Barrett from the Massachusetts Institute of Technology (MIT) described how they created a so-called electroaerodynamic-powered plane, one that uses solid-state propulsion, meaning no propellers or jet engines with expendable fuel.

“The future of flight shouldn’t be things with propellers and turbines,” Barrett says in the video below. “[It] should be more like what you see in Star Trek, with a kind of blue glow and something that silently glides through the air.”

Read more

Can Robots Build a Moon Base for Astronauts? Japan Hopes to Find Out

Japan’s space agency wants to create a moon base with the help of robots that can work autonomously, with little human supervision.

The project, which has racked up three years of research so far, is a collaboration between the Japan Aerospace Exploration Agency (JAXA), the construction company Kajima Corp., and three Japanese universities: Shibaura Institute of Technology, The University of Electro-Communications and Kyoto University.

Recently, the collaboration did an experiment on automated construction at the Kajima Seisho Experiment Site in Odawara (central Japan).

Read more

Using AI to Make Better AI

Next month, however, a team of MIT researchers will be presenting a so-called “Proxyless neural architecture search” algorithm that can speed up the AI-optimized AI design process by 240 times or more. That would put faster and more accurate AI within practical reach for a broad class of image recognition algorithms and other related applications.

“There are all kinds of tradeoffs between model size, inference latency, accuracy, and model capacity,” says Song Han, assistant professor of electrical engineering and computer science at MIT. Han adds that:

“[These] all add up to a giant design space. Previously people had designed neural networks based on heuristics. Neural architecture search tried to free this labor intensive, human heuristic-based exploration [by turning it] into a learning-based, AI-based design space exploration. Just like AI can [learn to] play a Go game, AI can [learn how to] design a neural network.”

/* */