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Sep 23, 2023

The loss of dark skies is so painful, astronomers coined a new term for it

Posted by in categories: climatology, space, sustainability

Humanity is slowly losing access to the night sky, and astronomers have invented a new term to describe the pain associated with this loss: “noctalgia,” meaning “sky grief.”

Along with our propensity for polluting air and water and the massive amounts of carbon we’re dumping into the atmosphere to trigger climate change, we have created another kind of pollution: light pollution.

Sep 23, 2023

Zentropy — A New Theory That Could Transform Material Science

Posted by in categories: science, space

The universe naturally gravitates towards disorder, and only through the input of energy can we combat this inevitable chaos. This idea is encapsulated in the concept of entropy, evident in everyday phenomena like ice melting, fires burning, and water boiling. However, zentropy theory introduces an additional layer to this understanding.

This theory was developed by a team led by Zi-Kui Liu, the distinguished Dorothy Pate Enright Professor of Materials Science and Engineering at Penn State. The “Z” in zentropy is derived from the German term “Zustandssumm,” which translates to the “sum over states” of entropy.

Alternatively, Liu said, zentropy may be considered as a play on the term “zen” from Buddhism and entropy to gain insight on the nature of a system. The idea, Liu said, is to consider how entropy can occur over multiple scales within a system to help predict potential outcomes of the system when influenced by its surroundings.

Sep 23, 2023

NASA’s 7-year mission concludes with asteroid sample returning to Earth this weekend

Posted by in category: space

A seven-year NASA mission is only just beginning as a capsule lands on Earth this weekend bringing with it some valuable cargo.

Sep 22, 2023

James Webb Space Telescope detects 1st evidence of carbon on Jupiter’s icy moon Europa

Posted by in category: space

The discovery made using NASA’s powerful space telescope brings scientists a step closer to determining if the salty water oceans of Europa could support life.

Sep 22, 2023

Nuclear ‘pasta’ cooked up by dead stars could unravel the secrets of stellar afterlife

Posted by in categories: particle physics, space

In the extreme hearts of neutron stars, fundamental particles are twisted into strange ‘pasta’ shapes that could reveal untold secrets about how dead stars evolve.

Sep 22, 2023

Tom Hanks Says He’d Clean Space Toilets For The Chance To Be An Astronaut

Posted by in categories: entertainment, space

The actor told The Telegraph what he could offer NASA while promoting his immersive film “The Moonwalkers.”

Sep 20, 2023

Photonic chips could lower energy consumption from data centres

Posted by in categories: computing, space

Data centre energy consumption could be cut with new, ‘breakthrough’ photonic chips that are more efficient than today’s chips.

Data centres can consume up to 50 times more energy per square foot of floor space than a typical office building and account for roughly 2 per cent of all electricity use in the US.

In recent years, the number of data centres has risen rapidly due to soaring demand from the likes of Facebook, Amazon, Microsoft and Google.

Sep 20, 2023

NASA’s Parker Solar Probe flies through major coronal mass ejection — and survives to tell the tale

Posted by in categories: particle physics, space

This will be good for future deep space spaceships faring high energy ejections on their hulls.


The sun-kissing spacecraft watched as dust particles were displaced across 6 million miles (9.7 million kilometers).

Sep 20, 2023

NASA’s Stunning New Moon Mosaic Reveals Lunar South Pole In Unprecedented Detail

Posted by in category: space

The mosaic reveals unprecedented detail of the lunar South Pole region and highlights a scenic crater called the Shackleton Crater.

Sep 19, 2023

Interplanetary Warfare

Posted by in categories: military, space

Space Warfare concepts from science fiction often involve war between planets, and we will discuss the science of that, and war inside a fully colonized solar system or Dyson Swarm.

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