What’s happening outside around Greater Boston today
76° / 50°•Fog, then showers late•Sunset 6:04 PM
A warm, breezy day before the cooldown; tonight the crescent Moon sits beside a red star.
Now, 4 cards
Today and tonight
Look up
A thin crescent Moon sits beside Antares, a red giant about 680 times as wide as the Sun, tonight
Just after sunset, look low in the southwest for the crescent Moon with an orange-red star beside it. That star is Antares, so big that set in the Sun's place it would reach into the asteroid belt.
6:30-7:30pm, low in the southwest
from home•kids•free
Go see
Look through Boston University's rooftop telescopes tonight, with Saturn up all evening
BU's Coit Observatory opens its roof to the public tonight at 7:30. Saturn is up all evening this month, and through a telescope its rings are nearly edge-on, a thin bright line across the planet.
7:30-8:30pm
15-minute drive•kids•free
Right outside
Harvestmen are on shady walls and woodpiles, and they have no venom at all
The daddy longlegs on the shed wall is a harvestman, not a spider: one body piece, no silk, no fangs, no venom. A leg it drops keeps twitching as a decoy for a predator, and it never grows back.
Any daylight
from home•kids•free
Touch it
Buck rubs are showing up on young trees: bark scraped raw a foot to three feet up
Bucks strip the dead velvet off their antlers on saplings, then keep rubbing to mark their ground before the November rut. Look for young trunks shredded pale, knee to waist high, in the Fells, the Blue Hills or any wooded park.
Any daylight
15-minute drive•kids•free
This Week, 4 cards
Tomorrow through Oct 21
Look up
The space station crosses Sunday's dawn sky at 5:54, brighter than any star
Sunday at 5:54am the space station, a steady light that never blinks, climbs out of the west to high in the north-northwest and fades low in the northeast by 6:00. Saturday night's forecast is mostly clear.
Sun 5:54-6:00am
from home•kids•free
Right outside
Dark-eyed juncos, the gray birds that only come for winter, are arriving under feeders
A slate-gray sparrow with a clean white belly, hopping on the ground under a feeder, is a junco, here from October to April and gone all summer. When it flies, its white outer tail feathers flash open.
Any morning this week
from home•kids•free
Go see
A mushroom walk at Fresh Pond in Cambridge, where 399 kinds of fungi have been recorded, Sunday
Mycologist Lawrence Millman leads a fungi walk around Fresh Pond Reservation on Sunday afternoon, a place with 399 recorded mushroom species. It caps at 15 people, so register now.
Sun 2-4pm
5-minute walk•kids•free
Go see
Watch migrating songbirds banded up close at Belle Isle Marsh in East Boston, Sunday
On Sunday morning, migrating songbirds caught at Belle Isle Marsh are banded in a biologist's hand, so you see a bird you would normally glimpse in a treetop from a foot away. It is free; rain or high wind cancels.
Sun 9-11:30am
15-minute drive•kids•free
Plan Ahead, 3 cards
Oct 22 and beyond
Coming soon
The Orionid meteors peak before dawn on October 22, after the Moon sets
The Orionids are grit from Halley's Comet burning up about sixty miles overhead. A bright Moon fills most of the peak night, so the dark stretch is from about 3am to first light on the 22nd.
Thu Oct 22, 3am-dawn
from home•kids•free
Coming soon
A family night hike under a nearly full moon at Habitat in Belmont, October 24
Mass Audubon's Habitat takes families with kids 5 to 12 into the woods after dark under an almost full moon, to listen for night animals. It is a small paid program, so book now.
Sat Oct 24, 6:30-8pm
15-minute drive•kids•plan
Coming soon
A free walk to the cliffs and a huge recent rockfall in Webster Woods, Newton, October 25
BU ecologist Richard Primack leads a free walk past Webster Woods' cliffs, the Alcove, 'Mountain Lion' Rock and an enormous recent rockfall near Hammond Pond. Booking is required.