When you think of outer space, you're likely picturing stars, planets and moons. But much of space is filled with clouds of gas, plasma and stardust—known as interstellar clouds.

Earth is quietly collecting radioactive debris from an ancient stellar explosion as our Solar System drifts through a giant ...

Through analysis of ice cores from Greenland and Antarctica, a research team has found evidence of an extreme solar storm that occurred about 9,200 years ago. What puzzles the researchers is that the ...

A section of ice core extracted from Antarctica. (Alfred Wegener Institute/Esther Horvath) This glittering spaceship Earth ...

The outer planets of the solar system are swarmed by ice-wrapped moons. Some of these, such as Saturn's moon Enceladus, are known to have oceans of liquid water between the ice shell and the rocky ...

Clouds come in myriad shapes, sizes and types, which control their effects on climate. New research led by the University of Washington shows that splintering of frozen liquid droplets to form ice ...