Comets are notoriously unpredictable. Some of the most spectacular of these icy visitors pop up unexpectedly, careening ...

Comet SWAN, hailing from the Oort Cloud beyond Pluto, may not have survived its recent trip past the sun and is fading fast.

We had Comet Tsuchinshan-ATLAS last October shining ... at the sky but at images taken by the Solar and Heliospheric Observatory. They were looking at the data from the Solar Wind Anisotropies ...

“These are relics from when the solar system first formed,” said Jason Ybarra, director of the West Virginia University Planetarium and Observatory ... to Earth like Tsuchinshan-Atlas did ...