Savannah Guthrie's mother, Nancy Guthrie, was reported missing in Arizona on Sunday, prompting an alert from the Pima County Sheriff's Department, according to NPR News. Meanwhile, in other news, Elon Musk's Boring Company faced scrutiny from Nevada legislators over safety and environmental violations, Fortune reported, and Amazon AWS CEO Matt Garman dismissed Musk's plan for space data centers, as also reported by Fortune. Separately, AerospaceNews examined the comparison between China's Mengzhou spacecraft and NASA's Artemis program. Nature News published research on Thetis cells, a newly identified lineage of antigen-presenting cells.
Nancy Guthrie, mother of the "Today" show co-host, was last seen Saturday near Tucson, Arizona. The Pima County Sheriff's Department stated that while Nancy Guthrie has mobility issues, she "is of great sound mind. This is not a dementia-related" case, according to NPR News. As of February 3, 2026, police in Arizona were working to locate her.
In Nevada, Elon Musk's Boring Company faced a more than three-hour legislative hearing on Tuesday regarding its safety and environmental record as it attempts to construct an underground transit system beneath Las Vegas, according to Fortune. State legislators on Nevada's growth and infrastructure interim standing committee presented a lengthy list of violations that Boring has accumulated since 2019. These included citations for chemical burns, digging too close to the Las Vegas monorail, hundreds of environmental violations, wastewater dumping into county manholes, and accidents during construction, Fortune reported. Legislators also questioned state regulators about their oversight of Boring and how the legislature could assist in better monitoring the company.
Turning to the tech sector, Amazon AWS CEO Matt Garman expressed skepticism about Elon Musk's vision for space-based data centers, Fortune reported. Speaking at a tech conference in San Francisco on Tuesday, Garman acknowledged the potential benefits of space data centers, such as harnessing solar energy and utilizing the cold atmosphere for cooling. However, he emphasized the significant obstacles, particularly the cost of transporting equipment. "I don't know if you've seen a rac," Garman said, according to Fortune. Amazon currently operates over 900 data centers worldwide.
Meanwhile, AerospaceNews published an analysis comparing China's Mengzhou spacecraft with NASA's Artemis program, highlighting the growing competition in space exploration. The article noted that China's lunar lander, Lanyue, underwent an engine test in 2025 in China's Hebei province.
In scientific research, Nature News published findings on Thetis cells (TCs), a recently identified lineage of RORγt antigen-presenting cells. The research identified a population of RORγt progenitors, termed Thetis-Lymphoid Tissue inducer progenitors (TLP), that give rise to the immediate TC progenitor (TCP) and the Lymphoid Tissue inducer progenitor (LTiP), and identified PU.1 as a key factor. The study explored the ontogeny and transcriptional regulation of these cells, which play a role in establishing intestinal tolerance.
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