1. The orbital evolution of resonant chains of exoplanets incorporating circularisation produced by tidal interaction with the central star with application to the HD 158259 and EPIC 245950175 systems

   • J. C. B. Papaloizou

   Original Article Open access 12 June 2021 Article: 30

   

2. Asymptotic behaviour of orbit determination for hyperbolic maps

   • Stefano Marò
   • Claudio Bonanno

   Original Article Open access 12 June 2021 Article: 29

   

3. Bounded Martian satellite relative motion

   • Guy Marcus
   • Pini Gurfil

   Original Article 11 June 2021 Article: 28

   

4. The planar two-body problem for spheroids and disks

   • Margrethe Wold
   • John T. Conway

   Original Article Open access 01 June 2021 Article: 27

   

5. The Manifold Of Variations: impact location of short-term impactors

   • Alessio Del Vigna
   • Linda Dimare
   • Davide Bracali Cioci

   Original Article Open access 20 May 2021 Article: 26

   

6. Correction to: Analytic orbit theory with any arbitrary spherical harmonic as the dominant perturbation

   • Bharat Mahajan
   • Kyle T. Alfriend

   Correction 20 May 2021 Article: 25

   

7. Identification of asteroid groups in the \(z_1\) and \(z_2\) nonlinear secular resonances through genetic algorithms

   • V. Carruba
   • S. Aljbaae
   • R. C. Domingos

   Original Article 18 May 2021 Article: 24

   

8. A new perturbative solution to the motion around triangular Lagrangian points in the elliptic restricted three-body problem

   • Bálint Boldizsár
   • Tamás Kovács
   • József Vanyó

   Original Article Open access 18 May 2021 Article: 23