The Peterborough Examiner

Are we on Earth alone in the universe? Find out more at astronomy presentati­on

- CAROLINE MCCONNELL CAROLINE MCCONNELL IS A FREELANCE CONTRIBUTO­R TO THE EXAMINER.

The Peterborou­gh Astronomic­al Associatio­n (PAA) meets Friday at the Rotary Education Centre Guest Services Building at Riverview Park and Zoo. If you prefer to attend online, the option to do so via Zoom is available.

Community members are invited to either attend or join in virtually. The format includes a novice class at 6 p.m., followed by the main presentati­on shortly after 7 p.m. and a question-and-answer period.

The main presentati­on, by past PAA member, Peter McMahon is a special Zoom presentati­on on Arizona’s Kitt Peak Observator­y Site.

“Peter will give us a live virtual tour of this amazing location atop a mountain in the American Southwest. World famous for its research and discoverie­s, the telescopes on Kitt Peak are a sight to behold and Peter will be our guide,” said Rick Stankiewic­z, PAA publicity director. “As manager of the Visitor Services Program at Kitt Peak, Peter is well positioned to give us an insider’s view of this incredible facility. You don’t want to miss this opportunit­y to see what few people ever have the chance to see.”

The novice astronomy class begins at 6 p.m. and runs for approximat­ely 45 minutes. These classes focus on the practical aspects of learning about astronomy, introducin­g subjects at a very basic level. Participan­ts need not to have attended previous classes and are welcome to stay for the meeting that follows, but there is no obligation.

This class, lesson 22, looks at exoplanets, and will explore the history behind exoplanet detection, the different discovery methods used, the types of exoplanets, and the utilizatio­n of space-based observator­ies that have revolution­ized this segment of astronomy investigat­ion.

“Are we alone in the universe? Philosophe­rs and astronomer­s have pondered this question for millennia,” says Stankiewic­z. “If an advanced civilizati­on were to exist out there, they would need a place to hang their hat — if such a thing were required.

“Chances are that this ‘somewhere’ would reside on a planet. Our solar system, as far as we know, does not contain any habitable planets with sentient beings beyond earth. Consequent­ly, the search for planets around other stars in the Milky Way, called exoplanets, has been a long-standing goal. As with many good ideas, technology lags behind. It has taken dedicated astronomer­s, large telescopes and powerful computers to make the first confirmed detection of an exoplanet in 1992.”

In the interactiv­e hands-on segment that follows the class, volunteers will help participan­ts understand the size and scale of our solar system. Using simple props, they will learn about the distances between our planets and the immensity of space.

The Sky This Month, a regular meeting feature, will be posted on the club website peterborou­ghastronom­y.com for all to access.

To participat­e in the Zoom meeting, register in advance at peterborou­ghastronom­y.com/zoom_register.php where you will receive the-password and link to the meeting’s classes and presentati­ons.

There is no cost and the meeting is open to all ages and anyone interested in learning what the group is all about. The facility is barrier free. For further informatio­n, visit peterborou­ghastronom­y.com or check out the group on X, formerly twitter (@PtbAstrono­mical) or Facebook (@Peterborou­gh Astronomic­al Associatio­n).

Spring cleaning?

Doing some spring cleaning? The Habitat for Humanity ReStore would like to have your unwanted household goods or excess building materials.

They will even pick them up for free from your home, office or business.

Every donation helps Habitat for Humanity build safe, decent and affordable homes, and prevents items from ending up in the landfill.

Items must be in good condition and free of stains, rips, tears, etc. and from a smoke-free home. For complete details visit https://habitatpet­erborough.ca/restores/restore-pickup-request.

You can also drop off your donations at ReStore North, which is located at 300 Milroy Dr., Monday to Friday from 10 a.m. until 6 p.m. and Saturday from 9 a.m. until 5 p.m.

 ?? RICK STANKIEWIC­Z PHOTO ?? Peter McMahon will give a special Zoom presentati­on on Arizona’s world-famous Kitt Peak Observator­y Site, shown here, at the May 3 meeting of the Peterborou­gh Astronomic­al Associatio­n. McMahon is manager of the visitor services program at
Kitt Peak.
RICK STANKIEWIC­Z PHOTO Peter McMahon will give a special Zoom presentati­on on Arizona’s world-famous Kitt Peak Observator­y Site, shown here, at the May 3 meeting of the Peterborou­gh Astronomic­al Associatio­n. McMahon is manager of the visitor services program at Kitt Peak.
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