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Research shows solar panel soiling losses vary widely, often modest in cost

Studies cited include IEA figures attributing 4-7% of global PV losses to soiling, an NREL study showing pollen cut output up to 15% at North Carolina sites, and UC San Diego research finding a 7.4% efficiency drop after 145 rain-free days. A YouTube test of three panels showed cleaning gains ranging from about 2.4% to 13.4%, while a UC San Diego calculation found cleaning a 5kW home system mid-drought would add only about $20 worth of electricity.

Researchers cut computational cost of breaking textbook RSA encryption

Researchers from UC San Diego and Inria Nancy have published a paper describing a new attack that significantly reduces the number of operations needed to factor RSA keys used in the 'textbook' or 'raw' RSA variant. For 1024-bit keys, the required calculations drop from roughly 2^80 to 2^65, with similar reductions across 2048-, 3072-, and 4096-bit key lengths. The findings have not yet completed peer review.

Migrant Graciela Gómez Hernández died near San Diego border despite dense surveillance network

Graciela Gómez Hernández, 30, crossed from Tijuana into Southern California on September 14, 2025, hoping to work and support her three children and parents in Mexico. She sent voice messages to family as she hiked through the rugged Otay Mountain Wilderness, but stopped responding by mid-afternoon, saying she could not continue. Her remains were not recovered until two weeks later, despite the area being heavily monitored by border surveillance cameras and technology.

Waymo opens robotaxi service to public in Denver, San Diego and Tampa

Waymo has launched public robotaxi rides in Denver, San Diego and Tampa, expanding its US footprint to 14 cities. The company says tens of thousands of people in each city have already signed up and will be granted access gradually ahead of a wider rollout.

Waymo launches paid robotaxi rides in Denver, San Diego and Tampa

Waymo has opened its self-driving ride service to the public in three new cities, bringing its commercial footprint to 14 U.S. metros. The rollout, which will expand gradually, pushes Waymo's fleet of Jaguar I-Pace vehicles and its new Ojai minivan past 4,000 cars.

Computer Museum of America collection resurfaces at San Diego State University after 21 years

A donor grant received in summer 2025 has enabled organizers to begin indexing the long-stored collection of the former Computer Museum of America and San Diego Computer Museum, which has sat in the basement of SDSU's Love Library for over two decades. The archive includes not just vintage computers and hardware but magazines, newsletters, software, books and manuals documenting the rise of the Information Age. Organizers are also launching fundraising and marketing efforts to raise awareness of the collection's existence and value.

Apple TV Launches 'Dark Matter' Season 2 With First Episode Now Streaming

Apple TV has released the premiere episode of Dark Matter's second season, more than two years after the sci-fi thriller's first run ended. The 10-episode season continues the story of physicist Jason Dessen and his family, based on Blake Crouch's novel, with Joel Edgerton, Jennifer Connelly and Alice Braga returning to their roles.

San Diego activist dons Darth Vader costume to mock city's Flock Safety surveillance deal

At a San Diego City Council budget meeting, DJ and activist Anthony Ralphs appeared as Darth Vader to satirize the city's renewed contract with surveillance firm Flock Safety, delivering a mock endorsement praising the technology's ability to track 'rebel scum.' The stunt, filmed and shared online, went viral across TikTok and Instagram, reaching millions of viewers. Ralphs, who has spent roughly a year opposing the San Diego Police Department's use of Flock's tools, later revealed his identity behind the mask to take credit for the performance.