Telstra has revealed the addition of almost one million new mobile services in the six months to December 2011, but Sensis revenues plummeted 24 percent in 12 months.
MESSENGER (MErcury Surface, Space ENvironment, GEochemistry and Ranging) made its first flyby of Mercury earlier this month, sending back images of previously unseen features including huge cliffs and "The Spider" - a formation of more than 100 narrow troughs radiating from a central region.
The craft has also revealed that the Caloris basin - a massive impact crater - is around 960 miles (1540km) in diameter, rather than the 800 miles (1290km) estimated by the Mariner 10 mission in the mid 1970s.
"This flyby allowed us to see a part of the planet never before viewed by spacecraft, and our little craft has returned a gold mine of exciting data," said Sean Solomon, MESSENGER's principal investigator, Carnegie Institution of Washington.
Instruments on the probe have provided new information about Mercury's magnetic field and surface composition.
MESSENGER will make two more flybys of Mercury before it settles into orbit in 2011.
David Bass
| For the fourth year in a row, IDC has placed content security provider Websense (NASDAQ: WBSN) at the top of the IDC Worldwide Web Security 2011 –…
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