Jim Al-Khalili TV - How the Universe Works TV - Star Trek: Voyager TV - Universe TV - The Universe: Nebulas TV -
Dotted around the sky Herschel and others had been observing strange cloud-like objects known as nebulae. Some of these nebulae seemed to have distinctive form and complex structure. Some astronomers began to suggest a radical idea. Perhaps the Milky Way wasn’t everything there was. Professor Jim Al-Khalili, Everything & Nothing: Everything, BBC 2011
The stars in a galaxy are born in clouds of dust and gas called nebulas. How the Universe Works s1e3: Galaxies, Discovery 2010
The nebula extends one hundred and ten light years, possibly more. Star Trek: Voyager s4e25: One
I am damned if I’m going to be stopped by a nebula. ibid. Janeway on bridge
Astronomers believe that the Crab Nebula was the debris from an exploding star: a supernova ... The Chinese Star was so bright it could be seen in daylight, and for a time it was even possible to write by its light. What’s more, the star had appeared in exactly the same part of the sky as the Crab Nebula. Universe: Stars
Chaotic and breathtaking. Their beauty forms from the emptiness of space. Wisps of matter. At times coming together, at others flying apart. Filmy, veiled, billowing masses, some dark, some glowing in brilliant colours, many taking the shapes of things that are eerily familiar. Neither stars nor planets they are the crown jewels of the galaxy. The Universe: Nebulas s2e14
It is one of the most famous space photographs ever taken. As seen by the Hubble Space Telescope it shows the Pillars of Creation – massive columns of dust and gas seven light years long. ibid.
Many also have names inspired by their locations or shapes. ibid.
The riddle of the nebulas is how they can form from almost nothing at all. ibid.
The questions surrounding the shapes of nebulas are among the most perplexing in all of astronomy. ibid.