Històric de Noticies

A Ghostly Green Bubble

 

Stars the size of the Sun end their lives as tiny and faint white dwarf stars. But as they make the final transition into retirement their atmospheres are blown away into space. For a few tens of thousands of years they are surrounded by the spectacular and colourful glowing clouds of ionised gas known as planetary nebulae.

Data: 

Thursday, 11 April, 2013

March 23 "World Meteorological Day 2013"

Each year, on 23 March, the World Meteorological Organization, its 191 Members and the worldwide meteorological community celebrate World Meteorological Day around a chosen theme. This day commemorates the entry into force, on that date in 1950, of the WMO Convention creating the Organization. Subsequently, in 1951, WMO was designated a specialized agency of the United Nations System.

This year, the theme is “Watching the weather to protect life and property"

OMM page dedicated to this day

Invitations to the events that meteorological services celebrate:

Data: 

Saturday, 23 March, 2013

PAN STARRS comet visible to the naked eye

Comets visible to the naked eye are a rare delicacy in the celestial smorgasbord of objects in the nighttime sky. Scientists estimate that the opportunity to see one of these icy dirtballs advertising their cosmic presence so brilliantly they can be seen without the aid of a telescope or binoculars happens only once every five to 10 years. That said, there may be two naked-eye comets available for your viewing pleasure this year.

More information about visiblity at

NASAaerithearthsky

Fotografies del cometa.

Data: 

Wednesday, 13 March, 2013

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