It won’t be long before pilots will be doing this

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Beatrice guides Dante in his ascent to contemplation

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Comet 12P Between Rosette and Cone Nebulas

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Sandro Botticelli, Dante and Beatrice, n.d., The University of Texas, Austin

Light I beheld which as a river flowed,

Fulgid with splendour; and on either shore

The colours of a wondrous springtime showed.

And from the stream arose a glittering store

Of living sparks which, winging mid the blooms,

To rubies set in gold resemblance bore.

Dante, The Divine Comedy, Paradise, Canto XXX

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Images: top/bottom

Peace

White Rose

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I know which view of the Empyrean I think more spiritual

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Gustave Doré’s 1855 illustration for The Divine Comedy: ‘Rosa Celeste: Dante and Beatrice gaze upon the highest Heaven, The Empyrean’.

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Neutrino associated with distant blazar jet

There is nothing in the world but matter in motion, and matter in motion cannot move otherwise than in space and time. Human conceptions of space and time are relative, but these relative conceptions go to compound absolute truth. These relative conceptions, in their development, move towards absolute truth and approach nearer and nearer to it. The mutability of human conceptions of space and time no more refutes the objective reality of space and time than the mutability of scientific knowledge of the structure and forms of matter in motion refutes the objective reality of the external world.

V.I.Lenin, Materialism and Empirio-criticism: Critical Comments on a Reactionary Philosophy, Progress Publishers, Moscow, 1975, 158

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Images: top/bottom

The aesthetic relation of art to reality – design in the Sistine Chapel and in the storms of Jupiter

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Jupiter’s zones and belts dominant near its equator decay into a complex pattern of continent-sized storm swirls

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Michelangelo, Sistine Chapel ceiling, 1508-1512, Vatican City

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Images: top/bottom

What is primary for truth and art?

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Painting with Jupiter

Materialist dialectics, a philosophical method for investigating nature and society, holds practical activity to be the basis of our relations with the world and therefore of cognition. Praxis is thus a criterion of knowledge. Only when practical activity confirms the coincidence of ideas and hypotheses with reality can it be said that they are true. Since practical activity is relative to the level of technological development, truth can never be that absolute ardently sought and equally trembled before by the idealists, rather, it is a deepening relative in relation to an absolute which can only ever be theoretical. Lenin wrote:

’From living perception to abstract thought, and from this to practice, such is the dialectical path of the cognition of truth, of the cognition of objective reality. Kant disparages knowledge in order to make way for faith: Hegel exalts knowledge, asserting that knowledge is knowledge of God. The materialist exalts the knowledge of matter, of nature’, V.I.Lenin, Collected Works, Vol., 38 (Philosophical Notebooks), Progress Publishers, Moscow, 1976, 171.

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The moon, my shadow, and I

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Alone and Drinking Under the Moon

by Li Bai (Li Po) 701-762

Amongst the flowers I

am alone with my pot of wine

drinking by myself; then lifting

my cup I asked the moon

to drink with me, its reflection

and mine in the wine cup, just

the three of us; then I sigh

for the moon cannot drink,

and my shadow goes emptily along

with me never saying a word;

with no other friends here, I can

but use these two for company;

in the time of happiness, I

too must be happy with all

around me; I sit and sing

and it is as if the moon

accompanies me; then if I

dance, it is my shadow that

dances along with me; while

still not drunk, I am glad

to make the moon and my shadow

into friends, but then when

I have drunk too much, we

all part; yet these are

friends I can always count on

these who have no emotion

whatsoever; I hope that one day

we three will meet again,

deep in the Milky Way.

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A nebula, its pulsar and a top – from Plotinus to Marx, the epistemology of the future

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The Crab Nebula and its pulsar

The greatest activity in the greatest stillness

CARDINAL: I shall try [to show you such an image]. I will take [the example] of boys [playing with] a top—a game known to us all, even in practical terms. A boy pitches out a top; and as he does so, he pulls it back with the string which is wound around it. The greater the strength of his arm, the faster the top is made to rotate—until it seems (while it is moving at the faster speed) to be motionless and at rest. Indeed, boys speak of it as then at rest.

So let us describe a circle, b c, which is being rotated about a point a as would the upper circle of a top; and let there be another circle, d e, which is fixed.  Is it not true that the faster the movable circle is rotated, the less it seems to be moved?

BERNARD: It certainly seems true. And, as boys, this [is how] we saw [it].

Nicholas of Cusa, De Possest (‘On Actualised-Possibility’), 1460, in A Concise Introduction to the Philosophy of Nicholas of Cusa, Trans., Jasper Hopkins, The Arthur J. Banning Press, Minneapolis, Minnesota, 1986, 914-954, 18, 923-924

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Stormy weather and a ‘peaceful’ waterfall in context

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Cyclones at Jupiter’s North Pole

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HH-222: The Waterfall Nebula

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Arcs, Jets, and Shocks near NGC 1999

Images: top/middle/bottom

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The Orion Nebula

The Orion Trapezium

The Orion Nebula Trapezium

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In the Valley of Orion Nebula visualisation

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Images: 1st/2nd