jueves, 1 de junio de 2017

NOTICIA DE LA SETMANA 10: "A giant planet with rings causes mysterious eclipses"

A giant gaseous planet, up to fifty times the mass of Jupiter, and surrounded by a ring of dust may be spinning around a star more than a thousand light years from Earth, according to new research by an international team of astronomers, Led by the British University of Warwick.

PDS 110 is a rare young star in the Orion constellation that has the same temperature as the Sun but is a bit larger. Hugh Osborn, a researcher at the Warwick Astrophysics Group, realized that his light is blocked regularly by a large object, probably an orbiting planet still undiscovered.

Using data from different observatories and instruments, astronomers analyzed fifteen years of PDS 110 activity. In this way, they discovered that every two and a half years, the light of this distant star is reduced to 30% from two to three weeks. Two notable eclipses were observed in November 2008 and January 2011.

Recreación artística del planeta gaseoso gigante que orbita la estrella PDS 110

Commentary: I think that can be extraterrestrial life in the planet who tour arround this star.

Glossary: I think that all the words in the notice are easy to understand.

LINK

NOTICIA DE LA SETMANA 9: "The Earth is on the verge of the sixth great extinction, but man can still avoid it"

"Human activities are bringing us closer to the sixth mass extinction in the history of planet Earth," said Forest Isbell, a researcher at the University of Minnesota and the first author of one of the articles published Wednesday.

Isbell has reviewed the most recent work that has studied man's benefits from species richness: for example, some have shown that reducing the biodiversity of forests lowers their wood production capacity.

 "The "technological anesthesia" makes us think that we can replace everything that nature gives us with technology, but the reality is that we can not replace everything," explained José Antonio González, professor of ecology at the Universidad Autónoma de Madrid . But, as the articles published in Nature reflect, this idea is increasingly overcome: "Little by little, we are realizing that our model depends 100% on biodiversity."

Resultat d'imatges de La Tierra está al borde de la sexta gran extinción, pero el hombre aún puede evitarlo

Commentary: I think that we need to do more things for save the planet, things like recycle, don't throw things to the grown, etc.

Glossary: I think that all the words in the notice are easy to understand.

NOTICIA DE LA SETMANA 8: "NASA Launches a Mission for "Touch the Sun""

NASA announced in early April that in the summer of 2018 it will launch the first spacecraft capable of 'touching the Sun'. Or put another way, to come so close to him as to clear many of the unknowns that surround him. The mission will be renamed Parker Solar Probe.

 The Parker Solar Probe will be launched between July 31 and August 19, 2018 and, in the words of mission scientist Nicola Fox, "will answer questions about solar physics with which we have been facing each other for more than six decades."

The probe, designed and built at Johns Hopkins University's Applied Physics Laboratory, will conduct 24 "passes" over the Sun over a seven-year mission, to be counted from arrival to destination, to Beginning of November 2018. The Parker Solar Probe will also move at 724,000 km/h and will become the fastest ship ever built by man.


Resultat d'imatges de mision para tocar el sol

Link

Commentary: I think that it will be difficult because the ship can to melt by the high temperatures.