Earth
Alberta Clipper, Panhandle Hooker, and snow, snow, snow
An Alberta Clipper developed in Canada this week and quickly moved southeast toward the Great Lakes. Meanwhile, the chances for snow have been going up.
Space
Small asteroid hit Earth’s atmosphere yesterday
A small asteroid harmlessly hit Earth's atmosphere over Siberia in Russia yesterday. More info with a map and images of the fireball here.
Tonight

Visible planets and night sky guide for December

Visible planets and night sky guide. Tonight, watch for the moon close to bright Venus. Tomorrow morning, look for Mars in front of the Beehive star cluster.
Earth
Sun

Sun news December 4: M flare ends activity lull

Sun news for December 4, 2024: A new region has broken the recent lull in activity with an M2.4 flare. Will it continue?
Earth
Human World

Audubon Christmas Bird Count signup has begun

The Audubon Christmas Bird Count, held each winter, is one of the longest-running community science projects. You can help collect important data about birds.
Space

Oceans on Venus never existed, new study suggests

Researchers at the University of Cambridge say that it's likely there were never any oceans on Venus. The planet might have always been as hot as it is now.
Space
Spaceflight
Sun

Proba-3: A sun-observing telescope made from 2 satellites

ESA is launching an ambitious spacecraft to study the sun's atmosphere. Proba-3 comprises 2 satellites that will align to form an artificial solar eclipse.
Earth

Carnivorous wolves feed on nectar: Lifeform of the week

Carnivorous wolves feeding on the nectar of flowers!? Yes! Scientists have seen and documented it for the first time. Read more about wolves here.
Space
Spaceflight

NASA testing underwater robots to explore ocean worlds

NASA is testing prototypes for autonomous underwater robots that could one day explore our solar system's subsurface oceans.
Astronomy Essentials

Earth flies between Jupiter and the sun on December 7

Giant Jupiter is closest to Earth for 2024 on December 6. Then Earth will fly between the sun and Jupiter - bringing Jupiter to opposition - on December 7.