1, Nebulae contain very large amounts of ionized gas.

2, You can see nebulae in the clear summer sky.

3, The size of the nebula at this stage is inversely proportional to its mass.

4, Explosions flared like novas inside a dust nebula.

5, These red giants were probably close neighbours of the infant sun and the ejected matter fell into the solar nebula.

6, According to present-day ideas, a star begins its career by condensing out of a cloud of dust and gas known as a nebula.

7, The most celebrated of them is M57, the Ring Nebula in Lyra.

8, By sheer coincidence Kappa Crucis lies at the edge of the dark nebula known as the Coal Sack.

9, The nebula is nearly 50 light-years in diameter, and may owe much of its illumination to Deneb.

10, Accurate recordings of nebulae, comets and solar protuberances now extended the iconography of the natural world.

11, As before, the star condenses out of a nebula, heats up, and begins to shine by the hydrogen-into-helium process.

12, Then, for a relative blink of about 1, 000 years or less, the star becomes a planetary nebula.

13, My collected works rendered the Horsehead Nebula, goofy space cruisers, robots, and Saturn.

14, A nearby nebula, orange and pink, was the lurid gaseous residue of an explosion.

15, The spiral nebulae were scratches left by the grinder.

16, Planetary nebulae are a type of isolated gaseous nebulae possessing a fair degree of bilateral symmetry.

17, Some nebulae appear to be completely engulfed by exceedingly large molecular clouds.

18, He proved wrong those who believed nebulae lay inside the Milky Way.

19, Many people equate focal ratios with image brightness,[http:///nebulae.html] but strictly speaking this is only true when taking pictures of "extended" objects like the Moon and nebulae.

20, Today's also presents the easternmost belt star, Alnitak, at the bottom right of the field, surrounded by the well-known Horsehead and Flame nebulae.

21, When you look up into the heavens with a telescope, you see many nebulae whelloch are like, or approximately like, the perfectly balanced spiral nebula whelloch you see edgewise in Fig. 23.

22, The tiny but intriguing yellowish arc visible near the blue nebulae marks young variable star R Coronae Australis.

23, These sources are generally viewed in projection against radio nebulae representing the remnants of supernova outbursts.

24, One of the most notable of these dark absorption nebulae is a cloud toward the constellation Ophiuchus known as Barnard 68, pictured above.

25, Astronomical images of the well-known Pleiades often show the cluster's alluring blue reflection nebulae, but they are washed-out here in the bright moonlight.

26, Precise thermodynamic equilibrium may never be achieved in a microscopic realm within gaseous nebulae.

27, Coming in third, yet another ultra fast Chinese computing machine called Nebulae.

28, Hurtling through a cosmic dust cloud a mere 400 light-years away, the lovely Pleiades or Seven Sisters star cluster is well-known for its striking blue reflection nebulae.

29, Ever since astrophotography got its start in the late 1800's the two nebulae have been photographed. The Hubble Space Telescope has captured some spectacular images.

30, You can use them to see the stunning pair of nebulae known as the Trifid and the Lagoon.

1, Nebulae contain very large amounts of ionized gas.

31, Such tumultuous, often visually spectacular, interstellar regions surrounding youthful stars are known as gaseous nebulae.

32, Astronomers in Japan say one of the best-known nebulae—the Trifid, in the constellation Sagittarius—owes its splendor to a smashup between two clouds of gas and dust.

33, The name originates from the 18th century, when telescopes weren't powerful enough to distinguish nebulae from gas giant planets.

34, It shows Orion's belt stars and well-known nebulae along with many 2.5 degree long geostationary satellite trails.

35, These gases are ionised by ultraviolet light from the remaining core and glow, resulting in nebulae that take on a variety of shapes and sizes.

36, The universe is an unimaginably vast space filled with planets, stars, systems, nebulae, gas, dust -- and it's impossible for us to ever explore it all.

37, Explanation : The Horsehead Nebula is one of the most famous nebulae on the sky.

38, The Galactic Dust in Corona Australis: Two blue - reflection nebulae.

39, Hanging from his belt, the stars and nebulae of the Hunter's sword are visible lower and to the right. Yellow-orange Betelgeuse is the brightest star on the image left.

40, Some astronomers thought nebulae were part of our Milky Way Galaxy.

41, Where the otherwise obscuring dust clouds lie close to the hot, young stars they also reflect starlight, forming blue reflection nebulae.

42, The fuzzy star or fuzz balls are the Lagoon and Trifid nebulae or Messier Objects 8 and 20.

43, Planetary nebulae fade away gradually over tens of thousands of years.

44, Some nebulae are made up of both reflection and emission components such as the Trifid Nebula.