Solar System

"From our perspective down in the trenches actually working for the government, it feels like the people up top just have no clue about anything."

The grand total of Saturnian moons is now 274.

Earth's largest iceberg has run aground off the coast of South Georgia Island, a common rendezvous spot for big bergs, new satellite images show.

Natural cycles in Earth's rotational axis and its orbit around the sun drive climatic changes, and now researchers have matched up specific points in those cycles to the timing of ice ages.

This week, geologists announced they discovered the world's oldest known impact crater. It's in Western Australia's ancient Pilbara region.

The discovery that helium and iron can mix at the temperatures and pressures found at the center of Earth could settle a long-standing debate over how our planet formed.

The solar system could be packed with 1 million alien visitors, space rocks shaken away from our cosmic neighbor Alpha Centauri, new research has revealed.

India's Aditya-L1 spacecraft captured detailed observations of a powerful solar flare last year, helping scientists better understand our star's eruptions.

Scientists think geysers on Saturn's moon Enceladus might come from a "mushy" zone of ice along the world.