August 24, 2013

Bainbridge astronomers seek funding for sundial

The Battle Point Astronomical Association (BPAA) has been working for many years on a plan to build a sundial next to its Edwin Ritchie Observatory in Battle Point Park on Bainbridge Island.

“It has been in the master plan for the organization almost since the get-go,” says Frank Petrie, a BPAA member since 1996 who is part of the sundial committee. The sundial would be built on a berm north of the association’s observatory and would be visible throughout much of the busy park.

BPAA members, with artist Bill Baran-Mickle at the center,
pose with a model of the proposed sundial. BPAA photo.
The project took a major leap toward reality with the launching of an Indiegogo crowdfunding campaign earlier this month. Petrie says the aim of the campaign is to raise the $17,000 they need to fully fund the sundial.

The budget for the spectacular, 12-foot-tall, bronze-clad steel equatorial bowstring sundial, designed by Bainbridge metalsmith Bill Baran-Mickle, is $30,000. BPAA has collected about $13,000 toward the project over the years from the donation jar at their monthly planetarium shows and community events, a pledge from its board, and recent grants from the Bainbridge Island Metro Park and Recreation District and the Bainbridge Community Foundation. The latter, Petrie says, indicated to BPAA that there was widespread community interest in the sundial.

“There’s interest in this project coming from the arts community as well,” he says, because of the renown of Baran-Mickle and the desire for more public art at Battle Point.

Woody Sullivan, a University of Washington astronomy professor also known as “Mr. Sundial,” makes a pitch for the project in the BPAA’s video on Indiegogo.

“Sundials connect you with the cosmos,” Sullivan says in the video. “They connect you with a more natural kind of time than a digital, flashing watch. They tend to slow you down, also, which is something I think we need in our 21st Century iPhone existence.”

Petrie says the sundial is a first step in BPAA’s ambitious vision for its astronomy programs at Battle Point Park.

“Our hope is to build an astronomy-related complex around our observatory in Battle Point Park,” he explains. “We have a number of features that we’d like to incorporate, and the sundial is one of those features.”

Another is an adjacent building for BPAA’s planetarium. Monthly planetarium shows are presently wedged into the Helix House, which also houses the observatory. But the space is small and cramped, and typically far more interested people show up than can be accommodated, forcing many to wait for a second show, or miss out.

“It’s been very, very popular, and that tells us that our long-term plan to expand is a good one,” Petrie says.

The popularity is well-deserved; BPAA puts on a good show. Seattle Astronomy recommends them highly.

Petrie calls the BPAA and its facilities “a little jewel” and says he loves the organization’s commitment to its mission.

“It’s dedicated to public outreach and getting folks interested in science,” he says. “We like to share the excitement that we have about science in general and astronomy in particular, and hope that we can reach as many folks as possible and get them excited as well.”

You can help share the excitement by contributing to BPAA’s Indiegogo campaign for the sundial.

August 20, 2013

Earthlings on Mars

If scientists eventually discover strange new life forms on Mars, then Bernie Bates is going to be out about $4 to members of the Tacoma Astronomical Society. Bates, professor of astronomy at the University of Puget Sound, made a friendly wager with those who attended his talk at the club’s meeting earlier this month. He has a shiny new dime that says we will find life on Mars and that it will look awfully familiar.

Bates expects we will have a definitive resolution to the wager by around 2026. NASA recently announced a Mars mission for 2020, and the ESA and Russia are working on a slightly earlier mission, both with an eye toward eventually returning samples of Mars rock and soil for analysis.

Bernie Bates, astronomy instructor at the University of Puget
Sound, spoke about Mars exploration at the August meeting
 of the Tacoma Astronomical Society
“They’re going to get samples back, they’re going to find microbes in it, and they’re going to pull the microbes apart,” Bates says. “The microbes are going to have DNA that we recognize, nucleotides that we recognize.”

“Life will be there on Mars,” Bates bets, “and it will be Earth life.”

The reason: Earth and Mars have been exchanging rocks for billions of years. “Mars is so close to us that there’s been cross-contamination between the two planets.”

Bates is confident he won’t have to pay off on the 10-cent wager about this multi-billion dollar question. But he isn’t offering odds or compound interest!

Recent science has been pretty conclusive about the past habitability of Mars, according to Bates, though Mars hasn’t been very Earth-like for the last two or three billion years.

“All of the geology questions in a sense have been answered,” he says. “We’ve got every potential smoking gun you can ask for for life on Mars.”

He expects we will find it.

“If Mars had life on it then it’s still there, someplace, probably underground,” Bates says, noting that microbial life is tough and adaptable. “The planet itself never did anything so hostile so quickly that it could wipe it out.”

Exploration of Mars was bumped up a notch or two with the arrival there of Curiosity a year ago, Bates says. A big reason is its power source, a radioisotope thermoelectric generator that will keep the rover operable for many years.

“They know they have enough time to do the science, they don’t have to rush, they can actually think through what they’re doing,” Bates says.

Time means flexibility. Bates notes that Curiosity spent the better part of its first year on an unplanned detour to explore the geology of an area named Glenelg near its Martian landing site.

“The spacecraft has an almost unlimited lifetime, they trust it, and they can do something like that” without jeopardizing the primary mission, Bates says.

Finding life on another planet, even if it actually originated here on Earth, wouldn’t exactly be ho-hum. Bates believes, though, that the greater discovery will come from a bit further out than Mars.

“If you want to find what the real search is for in the solar system, what they call second genesis, a different type of life, the Jovian people are the people to put your money on,” Bates says.

Money is a key factor. Interplanetary exploration costs a lot, and there’s not much cash to go around. The bulk of it is being invested in Mars these days, but Bates and many astrobiologists are rooting for more funding for those who want to probe the systems of Jupiter or Saturn. Both gas giant planets have moons that have interesting possibilities for life.

“Europa, Enceladus, that’s where the answers are,” Bates says.