From the center of the galaxy Ghost beams of gamma rays rising

The center of the Milky Way shows little activity in contrast. It was not always so peaceful. New evidence of ghost beams of gamma rays suggests that the central black hole of our galaxy was much more active in the past.

"These jets are faint ghost or just a sequel to what existed for millions of years," said Meng Su, an astronomer at the Harvard-Smithsonian Center for Astrophysics (CfA), and author of a new article in the Astrophysical Journal. "But it reinforces the evidence that there was an active galactic nucleus in the relatively recent past of the Milky Way," he added.

Seagrasses , healthier 'enterradoras' forest carbon

The green meadow of Posidonia underwater that exist close to coastlines, and are seriously damaged by polluting discharges, trawling and pleasure craft facilities, are capable of capturing and storing carbon twice the lush tropical forests. A study of seagrass, thousand around the world has shown that under the sea there are 'sinks' that help fight climate change.

The work has been developed by a team of scientists from several countries, including experts from the Spanish National Research Council (CSIC) and has been published in the journal Nature Geoscience. "

A garden center of stars the "nebula of war and peace”

The Very Large Telescope (VLT) of the European Southern Observatory (ESO) in Chile has allowed a group of astronomers to find an extraordinary image of the nebula NGC 6357, a nursery of stars known as the "nebula of war and peace”

The scientific body said, this new panoramic, obtained from the ESO Observatory at Cerro Paranal has, in the Atacama Desert, shows numerous hot young stars, glowing clouds of gas and dust strange formations sculpted by ultraviolet radiation and stellar winds.