Astronomy Picture of the Day
星系NGC 5394和NGC 5395的双人慢舞
影像来源及版权：Gemini，NSF，OIR Lab，AURA；文字：Ryan Tanner （NASA/USRA）
说明：如果你喜欢慢舞，那么你可能会喜欢上这幅图。图中的这支舞，一个转身就需要几亿年。两个星系NGC 5394和NGC 5395在引力的相互作用下围着对方缓慢绕转，一些新的恒星得以形成，像是点缀在其间的火花一般。这张由位于美国夏威夷莫纳克亚山上的双子座北8米望远镜拍摄的图片，是四个波段的照片叠加处理而成。来自氢气的辐射用红色表示，那里是恒星诞生的温床。这些新恒星的诞生将推动着星系的演化。同样可见的还有暗尘带，这里将最终演化成恒星诞生地。如果观察仔细，你将在背景中发现更多的星系，它们中的一些正在上演属于自己的宇宙舞蹈。
‘Let us, then, make a mental picture of our universe: each member shall remain what it is, distinctly apart; yet all is to form, as far as possible, a complete unity so that whatever comes into view, say the outer orb of the heavens, shall bring immediately with it the vision, on the one plane, of the sun and of all the stars with earth and sea and all living things as if exhibited upon a transparent globe.’ Plotinus, The Enneads, V.8.9
Konstantin Yuon, ‘A New Planet,’ 1921. Tempera on cardboard, The Tretyakov Gallery, Moscow
There is light. Light enables vision of a world in flux and in perceiving the world we desire to know it, to move towards absolute knowledge of it. Yet whence that light and where does that world exist – are we in it or is it in us? What is the method for knowing it? How do we bring into play the full range of our capacities? As a materialist or as an ‘idealist’? As one who holds that objective reality or matter is primary or as one who holds that consciousness or ‘mind’ takes precedence? What is the difference between ‘X is idealistic’ and that X is philosophically committed thus? Can we not use the lesson in that distinction to overcome a crippling impediment to the development of our knowledge, thereby enhancing both our ability to know the world and the potential for greater harmony in our lives in relating with it?
A testudo formation of dotted ‘is’, crossed ‘ts’ and referencing to the hilt, standard bearer at the rear – inching forward, together.
Prime Minister Abbott shirt-fronts the big issues at the G20
The Sydney Morning Herald 18.11.14