Europe South Asia Asia Pacific Americas Middle East Africa BBC Homepage World Service Education
BBC Homepagelow graphics version | feedback | help
BBC News Online
 You are in: Sci/Tech
Front Page 
World 
UK 
UK Politics 
Business 
Sci/Tech 
Health 
Education 
Sport 
Entertainment 
Talking Point 
In Depth 
AudioVideo 
Thursday, 17 February, 2000, 17:09 GMT
Mars Polar Lander is dead - official

In reality, it is probably in pieces In reality, it is probably in pieces


By BBC News Online science editor Dr David Whitehouse

The mysterious faint signals thought to have come from the stricken Mars Polar Lander (MPL) spacecraft as it lay crippled on the frozen Martian soil were just man-made terrestrial interference.

That is the conclusion of scientists who have used the world's most sensitive radio telescopes to try to detect the signals from MPL.

They were following up work done by a team from the Stanford University who said they might have picked up faint beeps from the lander in December and January.

MPL was last heard from as it was descending to the Martian surface on 3 December. It failed to make contact after landing and scientists speculate that it may have crashed into a rock or fallen into a hole.

Radio scientists at Nasa's Jet Propulsion Laboratory have now completed their detailed analysis of data taken by Stanford's radio telescope on 4 January. They say that the suspect signal is more likely to be of terrestrial origin and not from Mars Polar Lander.

End of project

"We saw something in the 4 January data that had all the earmarks of a signal and we felt we had to check it out. In parallel, we started to perform analysis to determine if the signal came from Mars," said Richard Cook, project manager for Mars Polar Lander at JPL.

"Based on the latest results, it is unlikely that we will attempt to listen again."

Astronomers had long ago given up all hope that MPL would radio back to Earth scientific data.

But they had hoped that a few bits of information would be sent back to enable them to determine what had befallen MPL.

But now all hope is lost of ever contacting the spaceprobe. It will have run out of power and be frozen in the desolate tundra near the Martian south pole.

Search BBC News Online

Advanced search options
Launch console
BBC RADIO NEWS
BBC ONE TV NEWS
WORLD NEWS SUMMARY
PROGRAMMES GUIDE

See also:
03 Feb 00 |  Sci/Tech
Quiet please, we're listening to Mars
07 Jan 00 |  Sci/Tech
Mars probe canyon crash theory
06 Dec 99 |  Sci/Tech
Mars 2 - Earth 0

Internet links:

The BBC is not responsible for the content of external internet sites
Links to other Sci/Tech stories are at the foot of the page.


E-mail this story to a friend

Links to more Sci/Tech stories