In 1978 the Soviet nuclear-powered satellite Kosmos 954 crashed to Earth near Yellowknife.

It said preliminary indications were that the top stages and the satellite crashed into the Siberian Sea where the second stage should have fallen following a normal separation.

According to launch director Omar Baez, the satellite and launcher likely crashed in the southern Pacific Ocean.

As a result, the upper stage and the three satellites crashed into the Pacific Ocean.

But scientists guess that the satellite will crash some time before June 1990.

Remember what happened in Canada in 1978 when that Soviet satellite crashed there.

They claimed that several countries' satellites that used toxic fuel have crashed into the Earth in the past but never warranted such "extraordinary measures".

For listeners, he said, the loss of potential choices would be akin to what satellite TV subscribers would face if their satellite crashed.

A similar satellite, Kosmos 954, crashed in Canada's Northwest Territories in 1978.

We suppose a large satellite crashed, a fraction of a million years ago.