The g-r vs. r-i colours of 3I/ATLAS from our measurements compared with solar system objects and other ISOs (Meech et al. 2017; Bolin et al. 2020). We use the scheme

Oblique view of part of a system of FSRs, recording multiple river tributaries, likely all active at the same or similar times. This shows rivers meandering, areas where river banks

Phase-folded radial velocities of the planets in the L 98-59 system. (a): L 98-59.06. (b): L 98-59 b. (c): L 98-59 c. (d)t: L 98-59 d. (e): L 98-59 e.

(a) The Earth’s extensive and H-rich exosphere scatters solar Lyman-α photons, producing the geocoronal airglow; (b) the geometry of Earth’s illumination by the Sun (adapted from Kameda et al. 2017).