El estudio, publicado en el último número de la revista Nature, ha empleado el Observatorio Espacial Herschel, el mayor telescopio espacial en funcionamiento

NOAO da el visto bueno para que el proyecto BigBoss use 500 noches de observación en el telescopio Mayall, en Arizona, con el objetivo de elaborar el mapa más detallado del firmamento e investigar la historia de la expansión del universo y de la energía oscura

Con una resolución que supera los tres billones de píxeles, la imagen cubre un tercio del cielo nocturno y ha permitido el hallazgo de casi 500 millones de objetos astronómicos.

Entre otros, el satélite aporta nueva información sobre la radiación de microondas emitida por el Big Bang, traza un catálogo de nubes donde se originarán nuevas estrellas e identifica numerosos cúmulos de galaxias

We have selected the Galactic HII region M43, a close-by apparently spherical nebula ionized by a single star (HD37061, B0.5V) to investigate several topics of recent interest in the field of HII regions and massive stars. We perform a combined, comprehensive study of the nebula and its ionizing star by using as many observational constraints as possible. For this study we collected a set of high-quality observations, including the optical spectrum of HD3706, along with nebular optical imaging and long-slit spatially resolved spectroscopy. On the one hand, we have carried out a quantitative

Delta Scuti (δ Sct) stars are opacity-driven pulsators with masses of 1.5-2.5M⊙, their pulsations resulting from the varying ionization of helium. In less massive stars such as the Sun, convection transports mass and energy through the outer 30 per cent of the star and excites a rich spectrum of resonant acoustic modes. Based on the solar example, withno firm theoretical basis, models predict that the convective envelope in δ Sct stars extends only about 1 per cent of the radius, but with sufficient energy to excite solar-like oscillations. This was not observed before the Kepler mission, so