Showing posts with label astrophysics. Show all posts
Showing posts with label astrophysics. Show all posts

Friday, July 31, 2015

Amazing Fireball crosses Latin America sky



UFO. ARGENTINA. URUGUAI. RIO GRANDE DO SUL state, BRAZIL. Thursday - July 30, 2015. An object, emitting an intense green light crossed the sky, at night, calling the attention of people from three countries of the South America.

The phenomenon could be observed at Argentina, Uruguay and Rio Grande do Sul - a federative state of Brazil. The UFO, very luminous seemed have a circular shape and a long tail. It was widely photographed and filmed.




In few minutes, the images and eyewitness accounts had spread over the Internet. At Brazil, there were sightings in Porto Alegre, Rosario do Sul, Novo Hamburgo, Quaraí and the Paranhana area, all cities and site located in the state of Rio Grande do Sul.

On Twitter, the hashtag #CieloVerde (green sky, in spanish)  and the term "UFO" were amid trends from the Buenos Aires region. In some of the video, the object is accompanied by ten seconds or more. Even behind the clouds, its strong light is visible.

EXPERTS 

But - the experts already have an explanation. The same as always. It was just a meteor or the fall of a piece of any space junk.

The day that one of these space junks fall on the head of one of this specialist - then, maybe - the specialists will begin to realize that lately many, even many - brilliant things are  falling from the sky.

The astrophysicist at the Planetarium at UFRGS (Federal University of Rio Grande do Sul) - Gilberto Klar Renner believes that the fireball was a meteor or meteorite.

But Renner said that the phenomenon was unusual. Even being a meteor: It's a little different, brighter. It is a special meteor, something out of the ordinary. Not a typical sighting.

Physicist Astronomical Observatory of PUCRS (Pontifical Catholic University of Rio Grande do Sul) - Marcelo Bruckmann, thinks the object is space junk.

SOURCE
Clarão no céu intriga moradores do RS, Argentina e Uruguai
ZERO HORA/BRASIL, 31.JULY,2015
[http://zh.clicrbs.com.br/rs/noticias/noticia/2015/07/clarao-no-ceu-intriga-moradores-do-rs-argentina-e-uruguai-4814121.html]

Thursday, October 3, 2013

YUCATAN FIREBALL - Ufo sightings Over the Mountain After Fall


+ IMAGES -  ANA LUIZA CID WEBSITE
 
MEXICO. In the region of the pueblo Ichmul,  Chikindzonot city (an area known as pueblos Maia) - on September 22 (2013), an object fell from the sky in flames scaring the population, causing a blackout, calling the attention of the authorities and researchers.

The episode, characterized by unusual details, is far from over and is having an equally strange development. Since the occurrence, there are also rumors that UFOs have been seen in the same area, flying in the vicinities of the  mountain, where the fireball fell.


+ IMAGES -  ANA LUIZA CID WEBSITE

SEPTEMBER, 27 - 2013. Maria Luiza Cid, jornalista mexicana, âncora de uma programa de televisão em seu país, publicou em seu WEBSITE  uma reportagem exclusiva sobre o assunto.

A resident of the pueblo Maya X-Querol, Nazario Cohuo Pech, told to Maria Luiza Cid reportage that, still on Monday, an image - a photography - of one of the UFOs, among those have been observed, prowling the Maya region - had been obtained, by a worker from the construction and expansion of the road Ichmul-Chiquindzonot, of Yucatán - using a smartphone.

Cohuo Pech talks more: That thing, we saw here in X-Querol since Sunday night and was flying about the town. Many saw it and many say that it stood stoped on the lines of high-voltage electricity. Some say that they steal energy.

Nazario Cohuo Pech also said that was reported, on Monday, to the Federal Electricity Commission (CFE), that have been ocurring oscilations  in electricity and eventually were without light. 

Then, the parastatal's staff went to check and found that the power lines that provide electricity to villages were broken. The CFE workers, they comment with surprising naturality, that those objects or UFOs often steal electricity.

SOURCE: 
CID, Ana Luiza. Cae objeto en Ichmul, zona maya.
ANA LUIZA CID/Investigacion OVNI en Mexico, 27/09/2013
[http://analuisacid.com/?p=13374]

Experts have arrived in Ichmul to analyze the fragments of the OVNI'Fireball Which Fell at Region


MEXICO. The inhabitants of the pueblo de Ichmul, Chikindzonot city, where - on Sunday September 22 - fell a weird fireball (in true, an object still not identified), received - yesterday,  1 October (2013) - among others, four investigators,  from Centro de Investigación Científica de Yucatán (CICY - Scientific Research Center of Yucatan). 

They were designated to analyze the fragments of the sky fallen object and were rescued by the community.

Were around 12 researchers that arrived. They toured the crash site - where they took some measures, made records and have collected samples of materials, reports the municipal commissioner, Floro Coyoc Pech.Coyoc Pech talked about the conclusions obtained with this first appreciation of the case:

They (the experts) explained us that there would be danger to people who had contact with the fragments because they aren't radioactive.

Now we knowing it's safe, we decided to continue digging the site of impact, because we can find, maybe, more fragments.

Coyoc Pech said, yet, that researchers confirmed that the fragments are not the result of an electrical problem, as have said employees of the Comisión Federal de Electricidad (CFE - Federal Commission of Electricity). It was verified that what hit the community is, in deed, something that came from sky.  


None of the fragments was identified. They claimed they had never seen anything like this and therefore, will be need to realize analyses more accurate 

The results must be known in four days and the orientation is don't allow more people have access to the fragments.

SOURCE: GÓNGORA, Miguel Moo. Llegan científicos a Ichmul. Los fragmentos desenterrados "no son radiactivos".
DIARIO DE YUCATAN, 2 de octubre de 2013
[http://yucatan.com.mx/yucatan/llegan-cientificos-a-ichmul]

Wednesday, October 31, 2012

The Climate Changes ... In Solar System



The changes in Jupiter's atmosphere. 
IMAGE: NASA/IRTF/JPL-Caltech/NAOJ/A. Wesley/A. Kazemoto/C.

COSMIC SPACE. Global warming is a controversial subject and, while reality is shrouded in contradictions. Scholars divide opinions. The so-called global warming deniers, contest, specifically, the anthropogenic warming - caused by man. 

They argue that climate change is not related to human activities but with a process that is affecting the entire solar system. Among scholars, there aren't consensus nor about the warming. Some say that the temperature is increasing, others, affirm that is decreasing, in a process of cooling.

Many denounce that the theory of anthropogenic warming is a theory forged by the more developed nations of the world with the goal of implementing a global tax on carbon emissions, what would keep rising powers limited in their development by this artifice, that would be a brake for economic growth.

But the facts are indifferent to discussions. And the fact is that the astronomical data indicate climate changes throughout the solar system. Three recent examples illustrate the phenomenon.


JUPITER


Jupiter has suffered more impacts over the past four years than astronomers already have observed along the timeline. On the image, the impact of a meteor, on 10 September 2012. 
IMAGE: NASA / IRTF / JPL-Caltech / G. Hall / University of the Basque Country.

In 2009, astronomers observed the disappearance of a brown track south of Jupiter's equator. It reappeared in 2011. At the same time, the scientist Glenn Orton and his team, of Jet Propulsion Laboratory, NASA - discovered, this year (2012) - that the north equatorial belt became noticeably clearer rapidly, more than the same process occurring over a century.

At Jupiter - there are events that are happening for the first time and others which aren't seen for decades, said Orton. The scientific community has no explanation for what is happening on this planet. Some believe that the surprise is due to the fact that only recently appeared potent observation equipments, able to allow the observation of phenomena previously ignored.


SATURN


PHOTO: NASA/JPL - Caltech/Space Science Institute.

One Saturn's year equals 30 Earth years. The annual storm on that planet, which has been registered since 2010 but has started in August 2009 must lasts about seven Earth years. It is monstrous. 

The image, taken by the Cassini spacecraft at the end of 2010, shows the layers of Saturn's atmosphere. The red and orange colors indicate lower clouds, closer to the surface of the globe. The tracks green and yellow are intermediate. 

White and blue are the outer levels of the atmosphere, where the storm is more intense. The rings do not appear because they are out of the atmosphere - out of the image's focus.



The evolution of the storm, and between 2010 and 2011. The "Great Storm of Saturn's Spring" has manifested itself two years ago as a giant vortex, formed by the merger of two large pockets of hot air. This vortex moves across the northern hemisphere of the planet since mid-2011.



The anticyclone vortex - which formed in the stratosphere, that is low pressure zone - has about 62,000 km of diameter, almost a quarter of the circumference of Saturn. 
IMAGE: VLT mid-infrared image of Saturn's giant vortex, em 20/07/2011. Leigh N. Fletcher, University of Oxford, UK, and ESO. IN [http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=50997]

On Saturn, the Cassini probe, NASA - has monitored the consequences of a rare and monstrous storm. The data revealed a record of disturbances in the planet's atmosphere. The probe's infrared spectrometer registered an increase in temperature of 150 degrees Celsius above normal.

In the same period, scientists of Goddard Spaceflight Center (NASA), Greenbelt (USA, Maryland) - detected a large increase in the amount of ethylene gas whose origin is a mystery. The release of ethylene was confirmed by Celeste infra-red spectrometer (CIRS) at the McMath-Pierce installed Solar Telescope at Kitt Peak - Arizona (USA).

Scientists at Goddard, in the edition of November 20 (2011) of the Astrophysical Journal, describe an unprecedented energy emission. According Brigette Hesman, University of Maryland - who also works in Goddard - lead author of the study:

This temperature rise is almost unbelievable, especially in this part of Saturn's atmosphere [atmosphere upper outermost] which is normally very stable. The illustration of a change in temperature on the same scale on Earth it would be like going from the intense cold in Fairbanks's winter (Alaska) to the hottest summer of the Mojave Desert.

Detected by the first time in the northern hemisphere of Saturn on December 5, 2010, the storm became so great that a similar phenomenon on Earth, could involve completly this planet, many times.


URANUS


Fast winds and swirling clouds in the atmosphere of Uranus form a dark vortex large enough to swallow two thirds of the United States. Astronomers from the University of Wisconsin-Madison used the Hubble telescope, NASA - on August 23, 2006 - for obtain the first images of the dark stain of Uranus which measures 1.700 km wide by 3.000 km in length. 

SOURCE: URANUS / NIGHT SKYNATION. 
[http://www.nightskynation.com/objects/planets/uranus]. 
IMAGE: NASA, ESA, L. Sromovsky and P. Fry / University of Wisconsin.


About Uranus, a study of an international team of scientists has revealed that currently the planet is swept by wind gusts reaching speeds exceeding 900 miles per hour. The finding surprised because when the Voyager probe passed by Uranus in 1986 showed a quiet landscape, without major changes. 

The result of the research about the "celestial planet" (Uranus is the deity who personifies the sky in Greek mythology, father of Saturn or Chronos, the Time) - presented at the American Astronomical Society, showed new images obtained by a new technology implemented in the Keck Observatory, Hawaii.

These images revealed that the planet has a dense atmosphere, similar to the neighbor - Neptune, made mostly of hydrogen, helium and methane. The temperatures are low enough to freeze the methane, about 180° negative Celsius. The fast winds, which blow with orientation east-west, are an enigma for the researchers because they don't understand where does the energy required to produce them.

Heidi Hammel (American Astronomical Society) - explained that ... These images reveal an incredible complexity in the atmosphere of Uranus. We knew that the planet was active but not in this level.

Another scientist, Larry Scromovsky observed: Uranus is changing. There, the meteorological profile is showing a different behavior than had been detected until recently. The fundamental difference is the instability - what never was observed before.

On Earth changes are also globals. Glenn Orton (quoted above, in the begin of this article) - warns that ...these changes may end his life in this world or, at least, radically alter the ecosystem as it is configured now. One of the things that has sustained life at the Earth is its stable environment.

THIS NEWS IN PORTUGUESE
[http://sofadasala-noticias.blogspot.com.br/2012/10/as-mudancas-climaticas-do-sistema-solar.html]

SOURCES
El cambio climático se da en todo el sistema solar.
URGENTE24/ARGENTINA, published in 30/10/2012.
[http://urgente24.com/areax/2012/10/el-cambio-climatico-se-da-en-todo-el-sistema-solar/].
NASA's Cassini Sees Burp at Saturn After Large Storm.
SOLAR SYSTEM/NASA, published in 25/10/2012.
[http://solarsystem.nasa.gov/news/display.cfm?News_ID=41203]
SANTA MARIA, Cheryl. Scientists spot changes in Jupiter's atmosphere.
THE WEATHER NETWORK, published in 19/10/2012.
[http://www.theweathernetwork.com/news/storm_watch_stories3&stormfile=Jupiter_s_atmosphere_undergoes_transformation_19_10_2012]