were rotating

Past progressiveconjugation ofrotate.There are other translations for this conjugation.

rotate

It was believed that all the planets were rotating round the Earth, and this even included the Sun.	Se creía que todos los planetas rotaban alrededor de la tierra, incluyendo al mismo Sol.
In particular, Slipher focused his attention on stars within spiral nebulae (Figure 5), expecting to find that the shift seen in the spectra of the stars would indicate that the galaxies those stars belonged to were rotating.	Particularmente, Slipher se enfocó en estrellas dentro nebulosas espirales (Figura 5), esperando encontrar que el cambio visto en los espectros de las estrellas indicaría de que las galaxias a las que pertenecían esas estrellas estaban en rotación.
Seasons were rotating and now autumn had come.	Estaciones estaban rotando y ahora el otoño había venido.
If the fields were rotating in the clockwise direction, the field would be Left Hand Circularly Polarized (LHCP).	Si los campos se giran en sentido horario, el campo se mano izquierda polarización circular (LHCP).
The Protons and Neutrons behave as though they were rotating around their own axis, like rotating tops. Their spin suggests the idea of an internal rotation.	Los protones y neutrones se comportan como si giraran al rededor de su propio eje, su dirección sugiere la idea de una rotación interna.