Kamala Harris has plans to improve health, boost the economy and mitigate climate change. Donald Trump has threats and a dangerous record

Predators’ electricity gives caterpillars an early warning

We can’t yet tell how life got its start on Earth. That’s one great reason to keep looking for life elsewhere

AI fights conspiracy theories, Massachusetts leads the way on waste reduction, and more in this week’s science news roundup

The year 2024 could easily shape up to be the hottest ever measured, climate scientists say

Scientists have traced a baffling monotonous planetary hum that lasted for nine days back to a glacier in Greenland