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Archive for the ‘space’ category: Page 249

Feb 18, 2023

“Transforming Industries” — Light-Based Tech Could Inspire Moon Navigation and Next-Gen Farming

Posted by in categories: computing, food, space

Leading scientists in the field predict that lithium niobate chips, which are extremely thin, will surpass silicon chips in light-based technologies. These chips have a wide range of potential applications, from detecting ripe fruit from a distance on Earth to guiding navigation on the Moon.

According to the scientists, the artificial crystal of lithium niobate is the preferred platform for these technologies because of its superior performance and advancements in manufacturing techniques.

RMIT University’s Distinguished Professor Arnan Mitchell and University of Adelaide’s Dr. Andy Boes led this team of global experts to review lithium niobate’s capabilities and potential applications in the journal Science.

Feb 18, 2023

Neutron Stars Create ‘Perfect’ Explosion in Space, Forming Senseless Symmetrical Sphere

Posted by in categories: physics, space

Two neutron stars collided which caused a huge explosion but with an unusually flawless form, baffling scientists. Usually, a collision between neutron stars would lead to a flattened cloud but the recently observed explosion formed a perfectly spherical shape, SpaceAcademy.org reports.

It is still unclear how this is possible, but a new study may shed light on the fundamental physics involved and help scientists calculate the universe’s age. Astrophysicists from the Universe of Copenhagen discovered the kilonova and described it in full in their study, titled “Spherical Symmetry in the Kilonova At2017gfo/GW170817,” which was published in the journal Nature.

Feb 18, 2023

Astronomers Design a Futuristic Telescope Concept To Find Far-Off Earths

Posted by in categories: futurism, space

Scientists could finally send more powerful mirrors to space to hunt for exoplanets.


Scientists have found a way to bring bigger telescope mirrors into space, potentially allowing for more exoplanet discoveries.

Feb 18, 2023

The 10 Weirdest Facts About Venus

Posted by in category: space

Venus is one of the weirdest planets in the solar system. We explore the scorching planet in more detail with 20 interesting facts about Venus.

Feb 18, 2023

Reinforcement Learning Course — Full Machine Learning Tutorial

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

This is NOT for ChatGPT, but instead its the AI tech used in beating GO, Chess, DOTA, etc. In other words, not just generating the next best word based on reading billions of sentences, but planning out actions to beat real game opponents (and winning.) And it’s free.


Reinforcement learning is an area of machine learning that involves taking right action to maximize reward in a particular situation. In this full tutorial course, you will get a solid foundation in reinforcement learning core topics.

Continue reading “Reinforcement Learning Course — Full Machine Learning Tutorial” »

Feb 18, 2023

The Planck Temperature: How hot can the Universe get?

Posted by in categories: physics, space

The Planck Temperature – Absolute Hot: What is the hottest temperature possible.

Today I’m going to look at the Planck Temperature and it’s about to get very strange. Let’s find out more.

Continue reading “The Planck Temperature: How hot can the Universe get?” »

Feb 18, 2023

New type of bolometer detector for far-infrared telescopes

Posted by in category: space

To study how stars and planets are born we have to look at star cradles hidden in cool clouds of dust. Far-infrared telescopes are able to pierce through those clouds. Conventionally, niobium nitride bolometers are used as the detectors, despite their low operating temperature of 4 Kelvin (−269° Celsius).

Now Yuner Gan (SRON/RUG), together with a team of scientists at SRON, TU Delft, Chalmers University and RUG, has developed a new type of bolometer, made of magnesium diboride, with an operating temperature of 20 Kelvin or above. This can significantly reduce the cost, complexity, weight and volume of the space instruments.

Conventional, superconducting niobium nitride (NbN) hot electron bolometers (HEBs) are so far the most sensitive heterodyne detectors for high-resolution spectroscopy at far-infrared frequencies. Heterodyne detectors take advantage of a local oscillator to convert a terahertz line into a gigahertz line.

Feb 18, 2023

Scientists observe high-speed star formation

Posted by in categories: physics, space

Gas clouds in the Cygnus X Region, a region where stars form, are composed of a dense core of molecular hydrogen (H2) and an atomic shell. These ensembles of clouds interact with each other dynamically in order to quickly form new stars. That is the result of observations conducted by an international team led by scientists at the University of Cologne’s Institute of Astrophysics and at the University of Maryland.

Until now, it was unclear how this process precisely unfolds. The Cygnus X region is a vast luminous cloud of gas and dust approximately 5,000 light years from Earth. Using observations of spectral lines of ionized carbon (CII), the scientists showed that the clouds have formed there over several million years, which is a fast process by astronomical standards. The results of the study, “Ionized carbon as a tracer for the assembly of interstellar clouds,” will appear in the next issue of Nature Astronomy.

The observations were carried out in an international project led by Dr. Nicola Schneider at the University of Cologne and Prof Alexander Tielens at the University of Maryland as part of the FEEDBACK program on board the flying observatory SOFIA (Stratospheric Observatory for Infrared Astronomy). The new findings modify previous perceptions that this specific process of star formation is quasi-static and quite slow. The dynamic formation process now observed would also explain the formation of particularly massive stars.

Feb 17, 2023

This Historic Gravitational Wave Discovery Created a Perfectly Spherical Blast

Posted by in categories: physics, space

The game-changing neutron star merger of August 2017 created a ‘perfect’ explosion, according to a new study.


The blast behind the historic gravitational wave astronomy discovery of August 2017 had a perfect spherical shape, according to a new study.

Continue reading “This Historic Gravitational Wave Discovery Created a Perfectly Spherical Blast” »

Feb 17, 2023

Previously Unseen Auroras Found Dazzling Over Galilean Jupiter Moons; What Are These Ethereal Glows?

Posted by in category: space

Astronomers spotted auroras for the first time on two of the biggest Galilean moons of Jupiter. New features of Io and Europa’s auroras have also been discovered.

Previously Unseen Auroras Dazzling Over Galilean Jupiter Moons

Continue reading “Previously Unseen Auroras Found Dazzling Over Galilean Jupiter Moons; What Are These Ethereal Glows?” »

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