Astronomers early this century determined that the descriptions fit the Crab nebula.

The pulsar at the heart of the Crab nebula, for example, rotates 30 times per second.

Its uniquely complex structure resembles a miniature crab nebula.

They stopped again a few miles away near Yuma under black clouds that unfolded slowly like a spider crab nebula.

In the 1960s, due to the prediction and discovery of pulsars, the Crab nebula again became a major centre of interest.

He wrote his diploma thesis on physical processes in the Crab Nebula Supernova.

He pulled his attention back to them as if his thoughts had been with the Enterprise crew on a hostile planet in the Crab nebula.

The new Science paper packages up 107 hours of Crab Nebula observations spread over the course of four years.

The room with the machinery in the city is the heart of a weapon; so powerful that the Crab Nebula was created during a test firing.

Named for Walter Baade who first positively associated this star with the Crab Nebula.

The pulsar in the Crab nebula radiates powers of this order at the frequency 30 hertz [1].

Ftools can be just as mystifying as a rippling Crab Nebula: like most complex software, it is temperamental and takes getting used to.

His astronomical translations were useful in associating the Crab Nebula with a supernova observed by the Chinese in 1054.

The supernova that left us the Crab nebula went unreported in Europe, though not in China, though it was plainly visible here."

In 1913, when Vesto Slipher registered his spectroscopy study of the sky, the Crab nebula was again one of the first objects to be studied.

It performed the first comprehensive survey of the entire sky for X-ray sources, with a sensitivity of about 0.001 times the intensity of the Crab nebula.

The Crab Nebula supernova remnant erupted in an enormous flare, five times more powerful than any flare previously seen from the object on April 12.

His pioneering work in the use of balloon-borne instrumentation for observing celestial X-ray sources discovered high energy X-rays from the Crab Nebula.

A radio source was also reported coincident with the crab nebula in late 1968 by L. I. Matveenko in Soviet Astronomy.

One crab is the rate of the X-ray radiation emitted by the Crab Nebula, the remnant of a violent supernova explosion.

Magnetic fields whipped around by the pulsar's spin are probably the energy source of the Crab nebula's glow as seen in visible light, infrared radiation and radio emissions.

It is in searching in vain for the comet that Charles Messier found the Crab nebula, which he at first thought to be Halley's comet.

The amount of matter contained in the Crab Nebula's filaments (ejecta mass of ionized and neutral gas; mostly helium) is estimated to be 4.6 1.8 M.

This paper refers to an earlier telescope design from 1993 which took direct images of the Crab nebula at radio wavelengths using an eight-by-eight-pixel two-dimensional spatial FFT processor.

A class of astronomical sources where synchrotron emission is important is the pulsar wind nebulae, or plerions, of which the Crab nebula and its associated pulsar are archetypal.

PRR M1- This is the Pennsylvania Railroad's version of the Mohawks.

The principal products are the STEYR M1-"Monoblock" engine family which is the result of a long development process that was started by Steyr-Daimler-Puch in the 1920s.

"It's Grim Up North" graffiti - which had, since the early 1970s, been presented to northbound travellers on a bridge spanning the M1- led to a question about "regional imbalance" being asked in the House of Commons.