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Event

 
2025.11.19 7pm Wednesday Silicon Valley Astronomy Lecture Series Free Event Free Parking foothill College Los Altos NASA SETI.org 
Celebrating its 26th anniversary, Presents
Dr. Alfonso Davila (NASA Ames Research Center)
 will give a free, illustrated, non-technical lecture entitled:
The Search for Life on Saturn’s
 Intriguing Moon Enceladus
Date: Wednesday, Nov 19, 2025
Time: 7 PM (PST)
Location: Smithwick Theater, Foothill College, Los Altos
Free Admission

The lecture is co-sponsored by: 
	•	Foothill College Science, Tech, Engineering & Math Division
	•	The SETI Institute
	•	 The Astronomical Society of the Pacific
Foothill College is located off the El Monte Road exit from Freeway 280 in Los Altos.
	•	Closest parking: Lot 1 (stairs access to the theater)
	•	Alternative parking: Lot 5 (same elevation as theater)
	•	Campus Map: https://foothill.edu/map/ 
	•	Parking Info: https://foothill.edu/parking/ 
Past lectures in the series can also be found on YouTube at: http://youtube.com/svastronomylecturesand as audio podcasts at: 

https://www.buzzsprout.com/1805595 
 
In 2005, the Cassini spacecraft made a groundbreaking discovery—it found a massive plume of ice and gas erupting from the south pole of Enceladus, a small but geologically active moon of Saturn. The plume is now believed to originate from a subsurface ocean of liquid water beneath the moon’s icy crust, with conditions compatible with life, as we know it. This talk will focus on our current understanding of Enceladus' plume and subsurface ocean, and on strategies to search in them for possible evidence of life.

Alfonso Davila is a Research Scientist in the Exobiology branch at NASA Ames Research Center, where he helps develop strategies to search for evidence of life beyond Earth. He also conducts theoretical and experimental research on the nature and distribution of life in Earth environments that are considered analogous to extraterrestrial settings. His work investigates factors that affect biological potential and biosignature preservation in those environments. He has been a guest speaker at international conferences and a guest lecturer in universities and research institutes in the US, Canada, South America and Europe.

The lecture is co-sponsored by: 
	•	Foothill College Science, Tech, Engineering & Math Division
	•	The SETI Institute
	•	 The Astronomical Society of the Pacific
Foothill College is located off the El Monte Road exit from Freeway 280 in Los Altos.
	•	Closest parking: Lot 1 (stairs access to the theater)
	•	Alternative parking: Lot 5 (same elevation as theater) 

	•	Campus Map: https://foothill.edu/map/ 

FREE PARKING 

	•	Parking Info: https://foothill.edu/parking/ 

Past lectures in the series can also be found on YouTube at: 

http://youtube.com/svastronomylectures 

and as audio podcasts at: 

https://www.buzzsprout.com/1805595 

Foothill College | 12345 El Monte Road  | Los Altos Hills, CA 94022 US 

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SF events PA 2025  http://PlantTrees.org OCT 
10.31 Friday Halloween Critical Mass SF 5:30 PM    
10.31 Friday night skate 8 PM ferry building Embarcadero Island between north and south lanes at market Street 
10.31 Castro SF Night Market  
11.19 SETI.org NASA SLIDESHOW Los Altos 7pm
Foothill College 12345 El Monte rd Los Altos hills
12.13 SantaCon.info GrantGreen PolkSutter SF  
Santacon.info SF 2nd Sat Dec 13 2025 always 
Grant and Green SF + Polk St, SF @ Sutter best 
NYE SF CASTRO safe fun free place park car SF 
Http://PlantTrees.org SF EVENTS PA CA 

Halloween Events NYE etc all year round 
sfstation.com sf.funcheap.com funcheapsf.com 

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10.31 Friday Halloween Critical Mass SF 5:30 PM     

Fri Oct 31 2025 critical mass Halloween bicycle ride San Francisco meet 5:30 PM 
Justin Herman Plaza SF 
Market at Embarcadero SF 

10.31 Friday night skate 8 PM ferry building Embarcadero Island between north and south lanes at market Street

Pumpkin fest Pacifica 2025 

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CASTRO SF HALLOWEEN 2025 beta

::before::after10.31.25 5-10pm 
CASTRO NIGHT MARKET HALLOWEEN EDITION 
https://www.sfstation.com/castro-weekend-of-halloween-e2475421 
MORE INFO 
https://castromerchants.com/events/event-two-bmpss-x9twa-cchrg-k7z72-f4j9e-2lpxg-dspen-dfb7l-ptwby

This may actually be the only safe place to park in San Francisco on any night. Then you can enjoy all of the bars restaurants dance clubs and numerous sidewalk strolls stretches one block each direction from
Castro at 18th St.
Castro at market
Market at Noe
In the old days several of the big clubs would set up a door stamp at 9 PM and you could simply slip in before 9 PM to walk out and get this handstand then gain reentry for free all evening therefore you could easily pick one or two or three of your favorite venues to perform this operation Between 845 and 9 PM

You would not be wrong to want to explore Castro a little bit beforehand either on that night during the night market and or even another week or that night this month

Then I could explain to you some of the prime spots for example four of the venues have smoking patios
TOAD hall 18th one block west of Castro DJ north. 
THE MIX 18TH ST. HALF BLOCK EAST OF CASTRO NORTHSIDE handstamp after 9 PM
The café south east corner of market at Castro at 17th St. need hands Stamp DJ and Vijay dancing huge club lots of trans clients and just everybody on Halloween hand Stamp after 9 PM
Look out market at Noe at 16th St. north east corner balcony looks over market Street and no way DJ dancing inside hands Stamp after 9 PM. 

Pre-lockdown these 4 venues required a hand stamp for admission after 9 PM 

Qbar lesbian dance club DJ Vijay Castro between 18th market West side hand Stamp 9 PM

Beau north side of market between 18th  17th 
A.k.a. between Castro and Noe handstamp 9 PM

Yes all the best dance spots set up a handstamp station at front door at 9 PM pre-lockdown
Largely true all over SF

Plus another dozen bars and dance spots throughout 

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As confusing now, Soon I may split this list into 
SF events including Oakland burning man decompression party fest participation fair gala 
Palo Alto events including South Bay and Peninsula art festivals plus foothill College nasa seti.org space exploration events Los Altos Hills 

Otherwise a viewer needs to scroll down to see SF Events below at bottom. Start with Abstract: 

DEC 2025 SF 
Santacon.info Sat Dec 13 Northbeach,PolkGulch 

2026 FREE SF 100K people EACH EVENT 
Bay to breakers SF May 17 2026 B2B 
Pride SF Pink Saturday Castro June 28 29 2026 
4th Of July Hyde St Pier Aquatic Park Pier 39 SF 
Hardly strictly bluegrass Oct 2026 GG Park TBD 

Http://PlantTrees.org SF events 2025 
10 or 12 burning man FAQs go to August 2024
Http://PlantTrees.org 2024 7.115 7.18 8.25 8.31 - 8.42 
2024 11.70-11.84 my curated collection of best 1980s MTV music videos new wave synth pop synthesizer fun happy dance music cool stuff 





- Peninsula Digest: 

PlantTrees.org 2025 Palo Alto events California 

Http://Planttrees.org SF events PA 

Http://PlantTrees.org SF EVENTS PA CA

SF 

SF
SF SFevents 
SF EVENTS Aug-Dec 2025 
Http://PlantTrees.org 

Sf.funcheap.com
SF parking METERS now 7 days scroll down 
12-6 Sun 9-10 M-Sat 

Sept 2025 SF 

10 Best Corn Mazes in the Bay Area for 2025 
Corn-fusing fun anyone? 
The craziest corn mazes open for 2025 in the East Bay, North Bay, Peninsula and worth the road trip including the world’s largest. 
https://sf.funcheap.com/city-guide/craziest-corn-mazes-bay/

Bay Area October Fairs & Festivals
 Fall in full swing 
Here’s a round-up of October’s best events incl. Hardly Strictly Bluegrass, Fleet Week, Castro St. Fair & more. 
https://sf.funcheap.com/city-guide/october-street-fairs-festivals/

OCT 2025 SF 

Fri Oct 31 2025 critical mass Halloween bicycle ride San Francisco meet 5:30 PM 
Justin Herman Plaza SF 
Market at Embarcadero SF 

then when you hear the bike bells ding ding ding at 6 PM you know it's time to put down your joint and your beer and hop on your bike 
6pm bikes usually ride SW market Street SW Geary NORTH to Union Square for three clockwise circles for all the stragglers and slower to catch up but then they either shoot off towards Castro or Ocean beach or mission or up Polk towards fisherman's wharf or the old Exploratorium at Palace of Fine arts to bicycle underneath the columns it's fun and Halloween is the biggest ride of the year used to be 1000 bikes in costume might be less now other days are fun too but Halloween is the best because with 1000 bikes you can blow through all the red lights as other bicyclists and or motorcycle cops will block off the side traffic to give you free passage then

Broadway tunnel Geary tunnel Stockton tunnel SF is so fun to fly through on a bike when you don't have to stop at red lights it's truly a small well designed city 
Thin for two hours you've already previewed all the parties you're going to go to that night yet it's only 8 PM and you're totally alive charged energetic and ready to go to whichever parties you want to go to Halloween eve

DEC 2025 SF 

Santacon.info SF 2nd Sat Dec 13 2025 always 
Grant and Green SF + Polk St, SF @ Sutter best 2 spots 
Both sites have at least 3 Free DJ Dance Venues  
12-5pm Union Square. Then bar hops. Eve 5pm-2am
Santacon.info lists 50 events across USA. SF often posted late. No worries. SF Always happens. 

NYE Castro is FREE and safest place to park your car in SF  
Most all venues are free <9pm get hand stamps for reentry to your favorite venues i.e. the café toad hall mix lookout Qbar MidnightSun Beau 

- legal 

SF Beware parking meters 7 days 6 evenings M-Sat. Do not park within 20 feet of upcoming crosswalk sf.funcheap.com 

SF Parking Meters 7 days week schedule M-Sa 9pm-10pm Su 12-6 FunCheapSF.com 

SF to End Free Sunday & Evening Parking (Until 10pm) 2023 
San Francisco, Transportation
Starting in July, SF will roll out an 18-month plan to extend parking meters until 10pm Monday through Saturday, plus Noon to 6pm on Sundays 
https://sf.funcheap.com/city-guide/sf-free-sunday-evening-parking-10pm/



SF New Parking Rule 20 ft 
SF Loses 14,000 Parking Spaces
 Bye-bye curbside 
New parking rules – if you park within 20 feet of an upcoming crosswalk, you’ll soon get a ticket. Jan 1 2025
https://sf.funcheap.com/city-guide/sf-loses-14000-parking-spaces-starting-today-daylighting/



33 speed cameras go will be activated tomorrow in San Francisco at these locations.  
Fines range from $50-$500.  
SF will become the first city in California to implement them. Oakland and San Jose will also add them.  
@KTVU
 Live at 10 pm with the story 2025.03.19 Thu 
Betty Yu
@bett_yu
https://x.com/bett_yu/status/1902579118023061599
For updates and info, contact scott at planttrees dot org.