Up At The Ranch And Beyond

[Star Tsar]

Suspicious Observers | Space News | 20th May 2020 | Pluto Atmospheric Collapse, Stronger Storms, SOFIA

Source: https://youtube.com/watch?v=ihQuFOKOD4Q

[Star Tsar]

Posted by Star Tsar (here)
Galileo's Telescope

Measuring The Size Of The Earth : Eratosthenes

Published 3rd May 2020

First known measurement of the circumference of the earth. By Eratosthenes.

Source: https://youtube.com/watch?v=U-AqwEpniyo

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Measuring The Size Of The Earth : Al-Biruni

Published 12th May 2020

Derivation of Al-Biruni's method for measuring the radius of the earth.

Source: https://youtube.com/watch?v=Jk5pGUHzEGg

Fermat's Principle & Al-Biruni's Error

Published 20th May 2020

Using Fermat's Principle to determine the error in Al-Biruni's method for measuring the radius of the earth.

Source: https://youtube.com/watch?v=TAGrC4zj0Qs

[Star Tsar]

Astrum

How Big Can Solar Systems Get?

Published 20th May 2020

How big do you think our solar system is? Up until Pluto? A bit beyond? How big can other solar systems get? Astrum answers!

Source: https://youtube.com/watch?v=kDHouMEXHQg

[Star Tsar]

Seeker

The Hidden Phenomenon The First Black Hole Photo Didn’t Show You

Published 20th May 2020



About one year ago, we took the first-ever photo of a black hole. And now, a team of scientists have taken things to the next level by performing calculations to further predict how we could see black holes up close and personal in far more detail in the future.

In April 2019, scientists unveiled the first image ever taken of a black hole. The photo of the supermassive black hole M87* was captured by the Event Horizon Telescope, or EHT. Comprising eight radio telescopes around the world working together, the EHT is effectively a telescope the size of the planet.

Black holes have been historically difficult to capture in an image as they are by nature invisible. And so, technically, EHT didn't take a photo of M87* but rather captured a picture of the black hole’s shadow. Knowing the size of the black hole’s shadow against the accretion disk can help determine the mass of the black hole, and currently the EHT is accurate to within about 10%.

But what lies between a black hole’s shadow and the accretion disk? Well, Einstein's Theory of General Relativity predicts there is another layer called a photon ring and that is exactly what scientists are working to capture an image of next.

Read More:
Event Horizon Telescope
https://eventhorizontelescope.org/
The Event Horizon Telescope is an international collaboration capturing images of black holes using a virtual Earth-sized telescope.

There Are Infinite Rings of Light Around Black Holes. Here's How We Could See Them
https://www.sciencealert.com/sending...d-a-black-hole
If a passing photon is a bit too close, it will get trapped in orbit around the black hole. This creates what is called a "photon ring" or "photon sphere", a perfect ring of light predicted to surround the black hole, inside the inner rim of the accretion disc, but outside the event horizon.

Infinite Visions Were Hiding in the First Black Hole Image’s Rings
https://www.nytimes.com/2020/03/28/s...ole-rings.html
If they could increase the size of their event horizon network by adding an antenna in space, Dr. Doeleman said, they could gain enough resolution to see individual photon rings, as they are called, turning the event horizon into “a true cosmic laboratory for testing our most fundamental theories.”

Source: https://youtube.com/watch?v=pNkH0MqIFEI

[Star Tsar]

TheEcologist.org

Mapping Beneath The Earth's Surface

Published 20th May 2020



A UK team led by researchers at Cardiff University are combining state-of-the-art technology with the latest high-performance computing to create the very first 4D maps of the Earth’s mantle – a huge layer of slowly moving rock that sits beneath our surface.

This circulation of rock has quite literally shaped the world we live in today, from our islands and continents to our mountain ranges and ocean floor ridges, and therefore holds the blueprint for how our planet has evolved.

The team aims to create computerised maps of the flow of the Earth’s mantle over the past 1 billion years, representing the temperature, density, and velocity of the mantle over that time period, providing a complete 4D model.

Read all about it here: https://theecologist.org/2020/may/20...earths-surface

[Star Tsar]

Phys.org

Swarm Probes Weakening Of Earth's Magnetic Field

Published 20th May 2020



In an area stretching from Africa to South America, Earth's magnetic field is gradually weakening. This strange behaviour has geophysicists puzzled and is causing technical disturbances in satellites orbiting Earth. Scientists are using data from ESA's Swarm constellation to improve our understanding of this area known as the 'South Atlantic Anomaly.'

Earth's magnetic field is vital to life on our planet. It is a complex and dynamic force that protects us from cosmic radiation and charged particles from the Sun. The magnetic field is largely generated by an ocean of superheated, swirling liquid iron that makes up the outer core around 3000 km beneath our feet. Acting as a spinning conductor in a bicycle dynamo, it creates electrical currents, which in turn, generate our continuously changing electromagnetic field.

Source: https://youtube.com/watch?v=nzbQLuJ75SI

Source: https://youtube.com/watch?v=WMLqF4LJgpw

Read all about it here: https://phys.org/news/2020-05-swarm-...-magnetic.html

More on the SWARM mission

Source: https://youtube.com/watch?v=KlCCoj2Q9PA

[Star Tsar]

Volcano Time-Lapse

Eruption | Sakurajima Volcano, Japan

Recorded & Published 20th May 2020

At 19:37 JST an explosion was registered.

Source: https://youtube.com/watch?v=ZNSzb02R5xs

At 22:45 JST an eruption was recorded. A powerful blast! Lots of lava!

Source: https://youtube.com/watch?v=l_3wERcV0nc

The view from Kagoshima City. Quite a bit of lava came over the back of the crater.

Source: https://youtube.com/watch?v=dP4YJi0_fLA

[Star Tsar]

SciTechDaily.com

Clues To Chilly Ancient Mars Buried In Rocks Discovered By NASA’s Curiosity Rover

Published 19th May 2020



By studying the chemical elements on Mars today — including carbon and oxygen — scientists can work backwards to piece together the history of a planet that once had the conditions necessary to support life.

Weaving this story, element by element, from roughly 140 million miles (225 million kilometers) away is a painstaking process. But scientists aren’t the type to be easily deterred. Orbiters and rovers at Mars have confirmed that the planet once had liquid water, thanks to clues that include dry riverbeds, ancient shorelines, and salty surface chemistry. Using NASA’s Curiosity Rover, scientists have found evidence for long-lived lakes. They’ve also dug up organic compounds, or life’s chemical building blocks. The combination of liquid water and organic compounds compels scientists to keep searching Mars for signs of past — or present — life.

Read all about it here: https://scitechdaily.com/clues-to-ch...riosity-rover/

Source: https://youtube.com/watch?v=Ur_5s98b71s

[Star Tsar]

Fraser Cain

Searching For Ice In The Moon’s Shadowed Craters

Published 20th May 2020

When you’re out in space, water is the most precious resource you can get your hands on. It can be used for air, water, to grow food, radiation shielding, and most importantly, as the propellant for your spacecraft.

Exploration of the Moon has revealed that there’s a tremendous amount of water ice locked into the regolith, but it’s probably very difficult to access. But there are also permanently shadowed craters at the Moon’s poles that could have more than enough water to support a permanently inhabitable station on the Moon.

But it’s going to be tricky to get at, considering the fact that temperatures in the shadows plunge to -240 degrees Celsius, just 30 degrees above absolute zero.

Source: https://youtube.com/watch?v=yTGN0Bm2ypo

Related musical interlude

Source: https://youtube.com/watch?v=I9HgNs0xoM0

[Star Tsar]

Nemesis Maturity

Penumbral Lunar Eclipse - The Moon Is About To Pass Through The Earth's Shadow

Published 23rd May 2020



The Moon is About to Pass Through the Earth's Shadow - Penumbral Lunar Eclipse June 5, 2020

If you are in Asia, Australia, Europe, and Africa, you might see the Moon turn a shade darker during the maximum phase of this penumbral lunar eclipse, which is the second of four such eclipses in 2020.

A Penumbral Lunar Eclipse will take place on June 5, 2020. The Eclipse' will start at 17:45 UTC on June 5, and reach the maximum eclipse at 19:25 UTC. It will end at 21:04 UTC, on June 5, 2020.

A penumbral eclipse occurs when the Moon passes through the Earth's shadow, or penumbra. During this type of eclipse the Moon will darken slightly but not completely. The total duration of the eclipse is 3 hours, 19 minutes. Keep in mind that most penumbral lunar eclipses cannot be easily distinguished from a usual Full Moon.

Regions seeing, at least, some parts of the eclipse: Much of Europe, Much of Asia, Australia, Africa, South/East South America, Pacific, Atlantic, Indian Ocean, Antarctica.

Read all about it here: https://www.timeanddate.com/eclipse/lunar/2020-june-5 & http://www.eclipsewise.com/lunar/LEp...n05Nprime.html

Source: https://youtube.com/watch?v=rRrXY90R7EI

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Comet SWAN Headed For A Close Encounter With The Sun

Published 22nd May 2020

Comet SWAN (C/2020 F8) is not easy to see. Days away from its close approach to the sun, SWAN makes only the briefest appearance in the pre-dawn sky, just above the northeastern horizon where it is nearly swallowed by the glow of sunrise. The low-hanging comet is easily blocked by trees, buildings and clouds.

Current estimates of SWAN's magnitude range from +7 to +6--that is, just below the threshold for naked-eye visibility. In fact, Comet SWAN is turning into a bit of a disappointment. Following a naked-eye outburst in late April, the comet was widely expected to put on a good show this month. Instead, it is fizzling.

On May 27th, Comet SWAN will swing past the sun near the orbit of Mercury. There, intense solar heat might either re-energize the comet or, more likely, doom it. Astronomers are encouraged to monitor developments. For the rest of the month, the comet may be found in the constellation Perseus.

Read all about it here: https://www.cobs.si/

Source: https://youtube.com/watch?v=v35HGZvLm_Y

[Star Tsar]

Thunderbolts Project

Space News | Electric Asteroid Breaks The Rules

Published 24th May 2020

A team of scientists has observed an object which is again blurring the line between asteroids and comets. Scientists using the University of Hawaii’s ATLAS telescope have observed a cometary display from a type of asteroid known as a Jupiter Trojan asteroid. Dubbed 2019 LD2, it is the first such asteroid to date which has been seen sprouting a comet-like tail.

In standard reasoning, such objects are not expected to have surface ice, which makes the comet-like outburst completely unexpected for conventional theorists.

In this episode, we explain why the discovery is not unexpected at all from the perspective of the Electric Universe theory.

Source: https://youtube.com/watch?v=GYvEFwJbumo

2019 LD2's orbit animation & image from Space.com

Source: https://youtube.com/watch?v=S-Nv5x3tv4s

[Star Tsar]

Asteroid Station

Asteroid Weekend Report

Published 24th May 2020

Asteroid Weekend Report for May 23rd 2020

(2020 KU) 2020-May-23 06:22
(2020 JR1) 2020-May-23 06:58
(2020 KJ) 2020-May-23 16:48
(2020 JX) 2020-May-23 19:02
(2020 KX) 2020-May-24 08:40
(2020 JZ1) 2020-May-24 17:52
(2020 KZ2) 2020-May-25 04:51
(2020 KU2) 2020-May-25 07:47
(2020 KP3) 2020-May-25 13:08
(2020 JP2) 2020-May-27 00:13

Source: https://youtube.com/watch?v=Ll2TkUpRa94

[Star Tsar]

American Meteor Society

Event #2449-2020 | Alberta, Canada | 22nd May 2020 @ 06:47 UT

Published 22nd May 2020

Supporting Link: https://fireball.amsmeteors.org/memb...vent/2020/2449

Source: https://youtube.com/watch?v=OYZ7LvOn80g

Source: https://youtube.com/watch?v=zF5fW60fHFY

Source: https://youtube.com/watch?v=TMMb0hgXeIk

Source: https://youtube.com/watch?v=hInJxIYGmac

[Star Tsar]

Asahi.com

Hayabusa 2 Photos Indicate Asteroid Ryugu Orbited Near Sun

Published 24th May 2020



The asteroid Ryugu used to pass far closer to the sun, even closer than Mercury, an analysis of images shot by Japan's Hayabusa 2 space probe reveals.

The probe snapped the images of the asteroid after it fired a bullet into Ryugu, stirring up sediments, during the Hayabusa 2's first landing attempt in February last year.

A team of researchers, primarily from the University of Tokyo and the Japan Aerospace Exploration Agency (JAXA), noted numerous dark red particles measuring 0.3 millimeters or less flying off the asteroid in the photos.

The team's analysis of the blackish red substances showed they were exposed to heat from the sun between 300,000 and 8 million years ago, the scientists said in findings published May 7 on the website of U.S. scientific journal Science.

Read all about it here: http://www.asahi.com/ajw/articles/13371209

[Star Tsar]

Lowell Observatory



What's In The Sky? | May 22nd To 31st 2020

Published 22nd May 2020

Highlights for May 15th-24th include Mars, Jupiter and Saturn in the morning sky and Mercury and Venus in the evening sky. We wrap up this episode with a hunt for two deep-sky objects that can be seen in small telescopes: the globular star cluster M3 and the Virgo Galaxy Cluster.

Source: https://youtube.com/watch?v=iIJtMmIPjUY

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Sagas In The Sky | Virgo

Published 23rd May 2020

Sagas in the Sky explores some of the stories behind the stars in the night sky. In this episode, we look at the story behind the constellation Virgo.

Source: https://youtube.com/watch?v=nGPsK0KVXE8

[Star Tsar]

Suspicious Observers | Space News | 21st - 24th May 2020

Source: https://youtube.com/watch?v=QYZ30qzXioY

Source: https://youtube.com/watch?v=oxEnMmLPBMY

Source: https://youtube.com/watch?v=pYgkyViHowk

Source: https://youtube.com/watch?v=uiH0SJT-Cj0

[Star Tsar]

Geoengineering Watch



Global Alert News | Episode 250



Published 23rd May 2020

The engineered pandemic has provided the power structure the premise to implement global societal lockdown. Does our government believe it has the right to compulsory vaccinate populations? Will Americans go blindly along with the many agendas that are clearly being carried out by those in power? The Covid-19 crisis has completely eclipsed unfolding planetary ecological collapse, how much longer can we continue on the current course?
We must face the gathering storm head on, continued societal complacency will only ensure our near term common demise.

Supporting link: https://www.geoengineeringwatch.org/...y-23-2020-250/

Source: https://youtube.com/watch?v=y5VGQHdYvZo

[Star Tsar]

Ridddle

What If The Earth & The Sun Switched Places?

Published 19th May 2020

Source: https://youtube.com/watch?v=zw9bAq-nMJ0

[Star Tsar]

Dr Maggie Lieu

J0331-27: A Tiny Dwarf With A Superflare

Published 24th May 2020

J0331-27 is a tiny dwarf with big flare, and this video Dr Lieu is going to talk about its discovery and what makes it so interesting.

Extra reading:
De Luca et al 2020: https://arxiv.org/abs/2002.08078
EXTras catalogue:http://www.extras-fp7.eu/

Source: https://youtube.com/watch?v=KtJAjEcsowk

[Star Tsar]

Astronomy Cast

Episode 571 | Extreme Binaries

Streamed & Published 22nd May 2020

So we're familiar with regular binary stars. Two stars orbiting each other. Simple. Of course the Universe has come up with every combination of things orbiting other things, and this week we look at some extreme examples.

Source: https://youtube.com/watch?v=lcbALEjp0k4