NASA Rover Marks Five Years On Mars
The
The twin robots, which landed on Mars three weeks apart in January 2004, were initially expected to have just 90-day missions, but have since sent back to Earth a quarter-million images, toured mountains and craters and survived violent dust storms.“The American taxpayer was told three months for each rover was the prime mission plan. The twins have worked almost 20 times that long,” said NASA assistant administrator Ed Weiler in a statement.
“That’s an extraordinary return of investment in these challenging budgetary times.”
The rovers, which along with 250,000 images have sent back to Earth some 36 gigabytes of data, have greatly advanced NASA’s understanding of Mars’ geology, including peeks into the planet’s wet and habitable past.
Analysts say the wealth of information data will keep scientists busy for years as they further unravel the vast banks of data.
Since 2004 the machines have covered 21km of Mars’ characteristic red rock desert, driving inch by inch to avoid chasms and rocky obstacles, picking up samples and snapping images to beam back to mission control on Earth.
“These rovers are incredibly resilient considering the extreme environment the hardware experiences every day,” said John Callas, project manager for Spirit and
“We realise that a major rover component on either vehicle could fail at any time and end a mission with no advance notice, but on the other hand, we could accomplish the equivalent duration of four more prime missions on each rover in the year ahead.”
While the machines have had relatively balmy 20 degrees Celsius summers, they have had to endure frigid extremes, where temperatures of minus-100 degrees Celsius in winter are common.
Harsh Martian winds, however, have provided an occasional cleaning job to the rovers’ solar panels – critical instruments to power the machines.
This unconventional aid, however, has not been reliable, with the Spirit machine’s panels hardly clear enough to survive its third southern hemisphere winter, which ended in December.
Although the $820 million project’s mission began as scientific, it has become something much larger, according to Steve Squyres of
The journeys “have led to something else important,” he said. “This has turned into humanity’s first overland expedition on another planet.
“When people look back on this period of Mars exploration decades from now, Spirit and
The continuing wealth of data provided by the rovers is a welcome holdover for the
The $2.3 billion Mars Science Laboratory is now expected to be launched in 2011.
Launch opportunities for Mars come only every 26 months, when the planets are in right alignment
Frugal Brides
The dour economy is not stopping brides and grooms from the “This is a recession-proof market,” says Donald Foste, group sales director for Occidental, a hotel chain with properties in Aruba and the
Many people will look at all-inclusives such as SuperClubs because “you know exactly what your wedding is going to cost you,” she says. The Caribbean’s destination wedding industry hopes to thrive on budget-minded lovebirds such as Tilly Lashel Gant and Terrance Flaggs of
The destination wedding market is so promising that some
Still, the economy is having an effect:
•Smaller wedding parties. Because wedding guests typically pay their own airfare and lodging, hoteliers expect to see fewer people attend. SuperClubs expects a 25% decline in guest numbers, Nakash says. Because of the economy, Gant and Flaggs expect few people to join them in Ocho Rios. She says her mother can’t afford to join them, and their bridesmaid and best man have yet to book their trip. They’re prepared to do without a bridal party.
•Fewer extras. At upscale Paradisus in the
•More price quotes. Brides who are “being more frugal” are taking more time to book weddings, Foste says. Brides used to book their wedding at an Occidental hotel within three weeks of requesting information, but now they’re taking up to six weeks so they can shop more, he says. Melvin Grant, a Bahamian minister, says he’s marrying more people on free public beaches. Couples are also calling him directly to lower the price. “Two years ago, they didn’t care,” he says. “But since last year, they’ve been cutting corners.”
