In the US, the flu season starts in October and can go until early spring, with cases peaking in February.

Viral respiratory infection season is setting in for the northern hemisphere, which includes flu, COVID-19, and RSV. The ...

Severe flu seasons abroad and low vaccination numbers in California may hint that a dangerous flu season is on the horizon.

JACKSONVILLE, Fla. — The 2025 tropical cyclone season is off to an unusually calm start across the Northern Hemisphere, marking the slowest beginning to the season since 1973, just over half a century ...

An unusual pattern has emerged ahead of Atlantic hurricane season: No tropical cyclones have formed anywhere in the Northern Hemisphere in 2025 as of May 16. This includes all tropical storms, ...

Expect an uptick in aurora sightings near the spring equinox on March 20, as celestial geometry swings in favor of geomagnetic disturbances. The sun is about to enter the Northern Hemisphere, which ...

In a precursor to what we might expect in the coming flu season in the United States and across the Northern Hemisphere, a ...

An Iranian man jumps over a firework celebrating Chaharshanbe Souri, or Wednesday Feast, an ancient Festival of Fire on the eve of the last Wednesday of the Persian year, in Tehran, Iran, Tuesday.