Significats de spiral nebulae en anglès

The actual features of our spiral nebulae seem clearly to exhibit that stage.

We are sadly in need of information concerning the constitution of the spiral nebulae.

A glance at the photograph of one of the spiral nebulae strongly confirms this.

He trained the powerful new 100-inch telescope at Mount Wilson in Southern California on spiral nebulae.

See developed the hypothesis that spiral nebulae owe their origin to the collision of two nebulae.

We are accustomed to think of the spiral nebulae as thin relatively to their major diameters.

The abnormally high speeds of the spiral nebulae are apparently a very strong objection to the hypothesis.

All astronomers are ready to confess that we do not know much about the conditions existing in spiral nebulae.

We may take one of the small spiral nebulae that abound in the heavens as an illustration of the first stage.

Those of the spiral nebulae which face the earth squarely afford an excellent suggestion of the way in which planets are probably formed.

Based upon this, Curtis became a proponent of the "island universe" hypothesis, which maintained that spiral nebulae are actually independent galaxies outside our own.