Sample Opties and DInghies dumplings paired with wine at Lenz Winery this Saturday. (Photo credit: Victoria Caruso)

THURSDAY 

Buzzed Brains: The Neuroscience of Drinking Beer | Übergeek Brewing, 400 Hallett Ave., Riverhead, 631-381-0848

Check out Übergeek’s lecture series with this talk on the science of taste and flavor perception; festivities start at 7 p.m., lecture at 8 p.m.; free. For details, look here.

FRIDAY 

Melted Crayon Art | Mattituck-Laurel Library, 13900 Main Road, Mattituck, 631-298-4134

Teens in grades 6-12 can melt and reuse crayons to design a colorful art piece from 3-4 p.m.; free, registration required. Click here to sign up.

SATURDAY 

Wine Run 5K | Osprey’s Dominion, 44075 Main Road, Peconic, 631-765-6188

This race takes off at 9 a.m. through Osprey’s Dominion’s scenic vineyard. Cost is $48.99 for adults, $28.49 for ages 1-20, and $18.49 for those who want to volunteer and run. For more info and to sign up, click here.

Opties and Dinghies at Lenz | Lenz Winery, 38355 Main Road, Peconic, 631-734-6010

From 1-5 p.m., enjoy four styles of dumplings paired with a glass of Lenz wine. Tickets are $45 per person, $40 for wine club members. To reserve, click here.

Spring Country Barn Dance | Hallockville Museum Farm, 6038 Sound Avenue, Riverhead, 631-298-5292

Dancers of all ages and skills are welcome at this annual barn dance, happening from 6-8 p.m. in the historic Naugles Barn. Tickets are $35 for ages 13 and up, $5 for ages 5-12, and free for children under 5. Registration is required; to sign up, click here.

Messier Marathon | Custer Institute and Observatory, 1115 Main Bayview Road, Southold, 631-765-2626

From 7 p.m. to Sunday at 7 a.m., this all-night event will attempt to locate all 110 objects in astronomer Charles Messier’s famous catalog, from galaxies to nebulae. Tickets are $10, observatory members free; bring red flashlight/headlight, blankets and warm clothing. This is a weather-dependent event; for details, click here

SUNDAY 

Historic Schoolhouses of Long Island | Cutchogue-New Suffolk Library, 27550 Main Road, Cutchogue, 631-734-6360

Zach Studenroth talks about his latest book at 2 p.m., discussing schoolhouse history from the 1700s onward. Free; for more info, click here.

Women of Broadway | Riverhead Free Library, 330 Court Street, Riverhead, 631-727-3228

Yvette Malavet-Blum performs a cabaret show to honor women performers and composers on Broadway over the years from 1:30-3 p.m.; free. For details, look here.

1995 Grand Vintage Magnum Dinner | Paumanok Vineyards,1074 Main Road, Aquebogue, 631-722-8800

From 5:30-9 p.m., enjoy a special dinner prepared by chef Tom Schaudel while Paumanok pours three top-rated 1995 reds from magnum bottles. Tickets are $239 per person and can be reserved here.