San Francisco

San Francisco, officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the fourth most populous in California and 17th most populous in the United States, with 815,201 residents as of 2021. It covers a land area of 46.9 square miles, at the end of the San Francisco Peninsula, making it the second most densely populated large U.S. city after New York City, and the fifth most densely populated U.S. county, behind only four of the five New York City boroughs. Among the 331 U.S. cities proper with more than 100,000 residents, San Francisco was ranked first by per capita income and fifth by aggregate income as of 2019. Colloquial nicknames for San Francisco include SF, San Fran, The City, Frisco, and Baghdad by the Bay.

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Electric vehicles have lowered San Francisco's carbon footprint

Dr. Robert Zubrin to Address Star Trek Gathering in San Francisco March 10, 2024

California approves driverless taxi expansion in San Francisco

San Francisco airport will monitor plane waste for COVID-19 variants

A space station fell to Earth. An Australian boy brought it to San Francisco

Brunt Ice Shelf Breaks in Antarctica – Spawns Mega Iceberg 12x the Size of San Francisco

San Francisco is getting cold feet about self-driving car tests

Researchers at UC San Francisco have engineered molecules that act like “cellular glue,” allowing them to direct in precise fashion how cells bond with each other. The discovery represents a major step toward building tissues and organs, a long-sought goal of regenerative medicine.

Could a Morning-After Pill Prevent Sexually Transmitted Infections? San Francisco has formally recommended doxyPEP, which works like Plan B but targets STIs.

California Warned 2.2 Million People Via Phone Alerts Before 5.1 San Jose Earthquake Hit — On Tuesday, 2.2 million Californians in the San Francisco Bay Area got phone alerts warning that an earthquake was coming before it hit, the first use of a new statewide warning system

It's raining anchovies in San Francisco

Apollo 15's Al Worden's Second Memoir "The Light of Earth: Reflections on a Life in Space". After Worden left NASA, NASA, he moved to San Francisco, grew out his hair, and became a quasi-hippie

New model may improve San Francisco Bay Area, U.S., seismic hazard maps

Google and Waymo used driverless cars to make a virtual San Francisco

Sea-level rise may worsen existing San Francisco Bay Area inequities

Drug overdose deaths before, after shelter-in-place orders during COVID-19 pandemic in San Francisco

Astronaut Shoots Stunning Photo From ISS: A Clear Day Over San Francisco Bay

A Clear Day Over San Francisco Bay Seen from the ISS

Experts worried after 4 dead gray whales wash up around San Francisco

Massive Iceberg – 10 Times the Size of San Francisco – Breaks Off Brunt Ice Shelf in Antarctica