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Sep 4, 2023

Faster Than Can Be Explained — Photonic Time Crystals Could Revolutionize Optics

Posted by in categories: materials, space

A study recently published in the journal Nanophotonics reveals that by rapidly modulating the refractive index – which is the ratio of the speed of electromagnetic radiation in a medium compared to its speed in a vacuum – it’s possible to produce photonic time crystals (PTCs) in the near-visible part of the spectrum.

The study’s authors suggest that the ability to sustain PTCs in the optical domain could have profound implications for the science of light, enabling truly disruptive applications in the future.

PTCs, materials in which the refractive index rises and falls rapidly in time, are the temporal equivalent of photonic crystals in which the refractive index oscillates periodically in space causing, for example, the iridescence of precious minerals and insect wings.

Sep 4, 2023

India Sending Humanoid Robot to Space

Posted by in categories: robotics/AI, space

The Indian Space Research Organisation (ISRO) is set to launch a humanoid robot into space as part of its Gaganyaan mission, its first human spaceflight mission.

The much-delayed mission is back on track after ISRO successfully landed its probe on the moon’s South Pole, a world first.

According to the ISRO, the Gaganyaan project was established to demonstrate human spaceflight capability by launching a three-person crew to an orbit of 248 miles for a three-day mission and then bring them back to Earth safely, landing in Indian sea waters.

Sep 4, 2023

Space research says you shouldn’t use your phone before sleep

Posted by in categories: mobile phones, space

Two new sleep studies on the International Space Station are helping astronauts and folks here on earth get a better night’s rest.

“Have you ever been told not to look at your phone before bed? This is because the blue light affects your Circadian rhythm — your natural response to changes of daylight,” reads a European Space Agency (ESA) X post from Friday.


Two studies: Circadian light and sleep in orbit

Continue reading “Space research says you shouldn’t use your phone before sleep” »

Sep 4, 2023

ISRO puts Chandrayaan-3 rover in sleep mode to survive lunar night

Posted by in category: space

The lander and the rover, which landed on the Moon on August 23, were designed to operate for only one lunar day.

As the lunar day draws to a close, ISRO has decided to put its Chandrayaan-3 rover Pragyan in sleep mode to conserve its battery and protect it from the extreme cold of the lunar night. The rover, which has completed its assigned tasks, is now parked safely and has transmitted the data collected by its payloads to the lander, which in turn relays it to Earth.


Credits: ISRO/twitter.

Continue reading “ISRO puts Chandrayaan-3 rover in sleep mode to survive lunar night” »

Sep 4, 2023

NASA Astronaut Asks for Prayer for Moon Mission

Posted by in category: space

A Christian who wants to see God’s will done “on earth as it is in heaven” is piloting the first lunar flight in more than 50 years.

Sep 3, 2023

Moon done for India, over to the sun now as Aditya L1 lifts off successfully

Posted by in category: space

Sriharikota (AP), September 2

ISRO on Saturday launched the country’s ambitious Solar mission, Aditya L1, eyeing history again after its successful lunar expedition, Chandrayan-3, a few days ago.

Continue reading “Moon done for India, over to the sun now as Aditya L1 lifts off successfully” »

Sep 3, 2023

China reveals grand vision for space resource utilization

Posted by in categories: economics, space

Could you mine all the resources needed for space exploration from space itself? China reveals plans to achieve this goal by 2100.

Chinese space scientists have unveiled a preliminary roadmap that aims to establish a comprehensive space resources system spanning the solar system by the year 2100.

The ambitious initiative, named after the Ming dynasty scientist Song Yingxing’s work, “Tiangong Kaiwu” or “The Exploitation of the Works of Nature,” has the potential to transform the global space economy and elevate China’s standing in the world of space exploration, reported South China Morning Post.

Sep 3, 2023

Russia’s Luna-25 Creates 10M Crater After Crash On The Moon | Watch NASA’s Pics Of The Site

Posted by in category: space

NASA has released images of the site from the Moon where Russia’s Luna-25 crashed last month. It revealed that the crash site lies 400 KMS away from the intended landing site of Russia’s lunar probe. It added that the impact of the crash was such that it created a 10 meter crater on the moon. Watch for more details.

#moon #luna25 #russia #nasa #crashsite #lunarsurface #russiamoonmission #images #orbit #roscosmos.

Continue reading “Russia’s Luna-25 Creates 10M Crater After Crash On The Moon | Watch NASA’s Pics Of The Site” »

Sep 2, 2023

Quantum entanglement visualized for the first time ever

Posted by in categories: particle physics, quantum physics, space

The mysterious phenomenon that Einstein once described as “spooky action at a distance” was seen as a wavefunction between two entangled photons.

Quantum physics, the realm of science that describes the Universe at the smallest scales, is known for its counter-intuitive phenomena that seem to defy every law of physics on an everyday scale.

Arguably none of the aspects of quantum physics are as surprising or as troubling as entanglement, the idea that two particles can be connected in such a way that a change to one is instantly reflected in the other, even if the two particles are at opposite sides of the Universe. It’s the word “instantly” that troubled Albert Einstein enough to describe entanglement as “spooky action at a distance”.

Sep 2, 2023

An AI pilot has beaten three champion drone racers at their own game

Posted by in categories: drones, information science, physics, robotics/AI, space

In what can only bode poorly for our species’ survival during the inevitable robot uprisings, an AI system has once again outperformed the people who trained it. This time, researchers at the University of Zurich in partnership with Intel, pitted their “Swift” AI piloting system against a trio of world champion drone racers — none of whom could best its top time.

Swift is the culmination of years of AI and machine learning research by the University of Zurich. In 2021, the team set an earlier iteration of the flight control algorithm that used a series of external cameras to validate its position in space in real-time, against amateur human pilots, all of whom were easily overmatched in every lap of every race during the test. That result was a milestone in its own right as, previously, self-guided drones relied on simplified physics models to continually calculate their optimum trajectory, which severely lowered their top speed.

This week’s result is another milestone, not just because the AI bested people whose job is to fly drones fast, but because it did so without the cumbersome external camera arrays= of its predecessor. The Swift system “reacts in real time to the data collected by an onboard camera, like the one used by human racers,” an UZH Zurich release reads. It uses an integrated inertial measurement unit to track acceleration and speed while an onboard neural network localizes its position in space using data from the front-facing cameras. All of that data is fed into a central control unit — itself a deep neural network — which crunches through the numbers and devises a shortest/fastest path around the track.

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