Astronomical winter began on December 21, 2025, with the winter solstice, the shortest day of the year in the Northern Hemisphere.

Nine earthquakes, including a 4.0-magnitude quake, struck near San Ramon on Dec. 20, 2025, causing BART delays but no injuries or major damage.

Severe floods in Morocco’s Safi killed at least 37, with many injured or missing.

A new flu strain is causing an early, severe outbreak across Europe, with cases rising rapidly and health systems under pressure.

Severe winds up to 55 mph hit Montana’s Bitterroot Valley on Dec. 17, 2025, causing widespread damage, power outages, and road closures.

SpaceX lost contact with Starlink satellite 35956 due to an in-orbit anomaly on Dec. 18, 2025; it's tumbling and will likely burn up in weeks.

Colorado issues rare wind warning as strong gusts raise wildfire risks due to dry conditions.

Ontario and New York partner on nuclear energy, including SMRs, to boost clean power and grid reliability.

A woman died in Chilliwack, B.C., when a tree fell on her during a severe windstorm on December 16, 2025.

Hubble reveals two rare cosmic collisions near Fomalhaut, explaining a long-missing "planet" as dust from giant space rocks.