C/2013 A1 is an Oort cloud comet discovered on 3 January 2013 by Robert H. McNaught at Siding Spring Observatory using the 0.5-meter Uppsala Southern Schmidt Telescope.
Comet Siding Spring as seen by Hubble on 11 March 2014
Orbiters take cover from Comet Siding Spring during Mars flyby
Mars as seen from Comet Siding Spring
Comet Siding Spring as seen from Mars
A comet tail is a projection of material from a comet that often becomes visible when illuminated by the Sun, while the comet passes through the inner Solar System. As a comet approaches the Sun, sola
The Great Comet of 2024 with tail (left) and anti-tail visible
Finson-Probstein diagram for comet C/1956 R1 (Arend-Roland) on 28 April 1957 looking down on the orbital plane
Finson-Probstein diagram for comet C/1956 R1 (Arend-Roland) on 28 April 1957 as seen from Earth
Trajectories of heavy dust particles ejected from the comet's nucleus