| Annular Eclipse of the Sun, 26/02/2017
In a narrow corridor cutting across the southern reaches of Chile and Argentina, and stretching across the Atlantic to Angola, the Democratic Republic of the Congo, and Zambia in Africa, the Moon crossed the sun dead-center. Yet it only covered 99% of the solar disk. ( A video illustration of the path of the eclipse)
Image taken by Enzo De Bernardini a Facundo, Chubut, Argentina.
| New data about two distant asteroids give a clue to the possible “Planet Nine”,, 22/02/2017
The dynamical properties of these asteroids, observed spectroscopiccally for the first time using the Gran Telescopio CANARIAS, suggest a possible common origin and give a clue to the existence of a planet beyond Pluto, the so-called “Planet Nine”.
| New Light on Dark Matter Halos,, 14/02/2017
For the past twenty years observers have been trying to test the effects of the predicted dark matter halos on the bars in barred galaxies. The basic idea is that according to simulation models which include the halos, these should have acted as a gravitational brake and slowed down the rotation of the bars during the lifetimes of galaxy discs.
|Exhibitions to celebrate the International Day of Women and Girls in Science, 11/02/2017|
| "Mujeres con pasión por las estrellas", 11/02/2017
Cesca Figueras comments on the role of women in astronomy in the "ARA"
| Waiting for the Solar Storm,l, 17/01/2017
Solar storms are now becoming a phenomenon of risk given the great social dependence of electricity and communications.
| New theory of the formatiopn of the Moon, 11/01/2017
A new theory has come out claiming that the origin for the Moon was a multiple-little-impact against the old theory of an only one giant-impact.
| Gaia tuns its eyes to asteroid hunting, 24/01/2017
Whilst best known for its surveys of the stars and mapping the Milky Way in three dimensions, ESA's Gaia has many more strings to its bow. Among them, its contribution to our understanding of the asteroids that litter the Solar System. Now, for the first time, Gaia is not only providing information crucial to understanding known asteroids, it has also started to look for new ones, previously unknown to astronomers.
| ALMA Starts Observing the Sun, 17/01/2017
New images taken with the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile have revealed otherwise invisible details of our Sun, including a new view of the dark, contorted centre of a sunspot that is nearly twice the diameter of the Earth. The results are an important expansion of the range of observations that can be used to probe the physics of our nearest star.
| Hubble Detects 'Exocomets' Taking the Plunge into a Young Star,1 2/01/2017
Interstellar forecast for a nearby star: Raining comets! NASA's Hubble Space Telescope has discovered comets plunging into the star HD 172555, which is a youthful 23 million years old and resides 95 light-years from Earth. The exocomets — comets outside our solar system — were not directly seen around the star, but their presence was inferred by detecting gas that is likely the vaporized remnants of their icy nuclei.
| VLT to Search for Planets in Alpha Centauri System, 09/01/2017
ESO has signed an agreement with the Breakthrough Initiatives to adapt the Very Large Telescope instrumentation in Chile to conduct a search for planets in the nearby star system Alpha Centauri. Such planets could be the targets for an eventual launch of miniature space probes by the Breakthrough Starshot initiative.