© Roscosmos
An artist's concept of the Phobos-Grunt spacecraft nearing the Martian moon Phobos.
Russia's
Phobos-Grunt space probe, with 22 pounds of radioactive Cobalt-57 on board, fell to Earth Sunday. The probe was launched in November to go to Phobos, a moon of Mars, but its rocket system failed to fire it onward from low Earth orbit.
There is some confusion as to where pieces of the 14.9-ton probe fell. The Associated Press reported Sunday that "pieces...landed in water 1,250 kilometers west of Wellington Island in Chile's south, the Russian military Air and Space Defense Forces said in a statement." The AP dispatch, datelined Moscow, quoted a spokesman, Colonel Alexei Zolotukhin, as saying that this "deserted ocean area is where Russia guides its discarded space cargo ships serving the International Space Station."
But, the article went on: "RIA Novosti news agency, however, cited Russian ballistic experts who said the fragments fell over a broader patch of Earth's surface, spreading from the Atlantic and including the territory of Brazil. It said the midpoint of the crash zone was located in the Brazilian state of Goias."
"The $170 million craft was one of the heaviest and most toxic pieces of space junk ever to crash to Earth, but space officials and experts said the risks posed by its crash were minimal because the toxic rocket fuel on board and most of the craft's structure would burn up in the atmosphere high above the Earth anyway," said the article by Vladimir Isachenkov.
