Comet tails, often seen as beautiful celestial phenomena, are more than just a visual spectacle. They hold critical information about solar winds and the Sun’s activity, providing insight into the ...

Astrophotographer Brennan Gilmore captured this photo of Comet Lemmon on October 4, 2025 from central Virginia. No two comets are exactly alike. While SWAN’s orbit is very well aligned with the plane ...

Every so often, the Kuiper Belt and Oort Cloud throw galactic snowballs made up of ice, dust and rocks our way: 4.6-billion-year-old leftovers from the formation of the solar system. These ...