Tracking the Aftermath From Erin on the Ocean

Meteorologists piece together the aftereffects in a hurricane’s path, and look ahead to potential future storms.

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Key Hurricane-Monitoring Data Will Stay Online, Officials Say

The Department of Defense said it no longer planned to shut down a program that makes satellite data publicly available to researchers and forecasters.

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Tesla Begins Limited Robotaxi Service in Austin

The vehicles will have safety monitors and may not operate in bad weather, making them more restricted than the fully autonomous vehicles promised by Elon Musk.

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People Can Be Identified by Breathing Patterns Alone, Scientists Find

Every breath you take, they really may be watching you.

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In ‘Cancer Alley,’ a Battle Over Who Gets to Measure Air Pollution

Community groups are fighting an unusual Louisiana law that restricts how they use data from air-quality monitors, saying it violates free speech.

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How ShakeAlert Warns California About Earthquakes

Even a few seconds’ notice gives people time to prepare before the shaking.

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Edison’s Power Lines Were Under Strain 14 Hours Before Eaton Fire

New data suggests there were faults on Southern California Edison’s transmission lines early on Jan. 7 before the fire started that evening.

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For Once, Good News About the B.Q.E.

Fewer overweight trucks are heading toward Queens, the Department of Transportation found, thanks to hidden sensors.

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Are Smart Thermostats Worth the Money?

Here’s what to know about potential savings on your power bill, and the environmental benefits.

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Bird Strikes Are a Common Problem for Flights

It is not uncommon for planes to strike wildlife, but most episodes don’t result in deaths or serious injuries.

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