Globule

Bok Globule In 1947, Bart Bok suggested that the small dark globules of interstellar gas and dust were undergoing collapse on their way to forming new stars. In recent years, a great deal of evidence supporting this proposal has been found.

GLOBULE A globule is an interstellar cloud of dust and hydrogen gas that contracts and undergoes gravitational collapse to form a star.

globule --see Bok globule. grand unified theories (GUTs) -- theories that propose that in the early Universe all the fundamental forces behaved as a single force.

Globule A dense, spherical cloud of dust that absorbs radiation (see Bok globule). Glueball ...

Bok globule Y'know, if you login, you can write something here. You can also Create a New User if you don't already have an account. Password ...

Bok globule Dark concentrated nebula cloud about 1 ly in diameter, containing some ten to a thousand Sol masses of dust and gas, and pertaining to the early stages of star formation.

Bok globules in H II region IC 2944. The actual birth of stars within H II regions is hidden from us by the dense clouds of gas and dust which surround the nascent stars.

Bok Globules Small, dark clouds only about 1 light year in diameter that contain 10-1000 solar masses of gas and dust. Believed to be related to star formation. Bow Shock ...

Tiny globules of carbonates (minerals rich in carbon and oxygen) in the meteorite probably formed at temperatures below 200 degrees Fahrenheit, which makes it more likely they were produced by biological processes, according to a team led by John W.

Main article: Bok globule Isolated gravitationally bound small molecular clouds with masses less than a few hundred times the mass of the sun are called Bok globules.

Found that some Bok globules contain protostars Cataloged thousands of hot, dense cores within clouds of gas and dust which could be newly forming stars Cataloged over 12,000 variable stars, the largest collection known to date ...

Orange-colored Carbonate Mineral Globules This photograph shows orange-colored carbonate mineral globules found in a meteorite, called ALH84001, believed to have once been a part of Mars.

A primordial protoplasmic globule So the calculation goes that the probability of forming a given 300 amino acid long protein (say an enzyme like carboxypeptidase) randomly is (1/20)300 or 1 chance in 2.

As the cloud collapses, individual conglomerations of dense dust and gas form what are known as Bok globules. These can contain up to 50 solar masses of material.

Recent observations at radio wavelengths of a gas cloud known as Bok Globule B335 have produced images of material collapsing onto a newly born star (only about 150,000 years old).

Bok globules have characteristic radii of 103-105 AU. Estimates of their mass suggest that their density is too low for gravitational collapse. They tend to lie in regions of much dust but less gas than would be expected for star-forming regions.

Bart Jan Bok 1906-1983 Dutch suggested that small dark globules of interstellar gas and dusk (now called Bok globules) are collapsing to form new stars ...

6 billion years ago, some kind of liquid flowed through the rock and deposited rounded globules of carbonate minerals.

The columns are called EGG's (Evaporating Gaseous Globules) because the ultraviolet light boils off some of the hydrogen gas (H2), shaping the in a process called . The biggest column is about 1 light-year tall.

The anthelia (from the Greek duet, opposite, and i Xcos, the sun) are coloured red on the inside, the outside being generally colourless owing to the continued overlapping of many spectra. The diameter increases with the size of the globules making ...

toward the center, providing the protostar with heat and a weak infra-red glow -- heat is defined as particle motion -- and rotation (think of an ice skater pulling in her arms as she goes into a spin). (Protostars can be detected in Bok Globules.) ...

Many astronomers believe that these bodies, called globules, are in the process of condensation and are the initial stages in the birth of stars. Planetary nebulae appear through the telescope as small disks with well-defined boundaries.

emulsions (NASA Thesaurus) Suspensions of fine particle or globules of one or more liquids in another liquid. enamel (NASA SP-7, 1965) A thin ceramic coating, usually of high glass content, applied to a substrate, generally a metal.

See also: Dust, Light, Sun, Earth, Planet