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In 2013 some members of the ruling Workers Party floated the idea of a comeback by Rousseff's larger-than-life predecessor, Lula.
The findings of the international team could have far-reaching implications in the search for life beyond our solar system.
The BRICS Bank will work closely with the China-led AIIB, says communique.
The group represents more than a fifth of the global economy.
In 2014, Brazil-Russia trade grew by 15 per cent.
Even as Western countries and Japan continue the suspension of their 16-year collaboration with Russia in the G8, Russian President Vladimir Putin on Wednesday evening hosted a different group: leaders
The bank has an initial authorized capital of $100 billion.
The finance chiefs also discussed the key points incorporated in the Leaders Declaration that will be unveiled at the end of the 2-day summit in Russia.
She visited the US last week, however, saying "some things have changed" since the spying revelations.
Brazil's Vale is the world's biggest supplier of iron ore.