1. Comparative Analysis of the Model for Exoplanet Atmosphere Outflow

   • P. B. Isakova
   • Ya. N. Pavlyuchenkov
   • V. I. Shematovich

   OriginalPaper 17 June 2021 Pages: 445 - 454

   

2. Properties of Stellar Populations of Eight Galactic Global Clusters with Low Central Surface Brightness

   • M. E. Sharina
   • M. I. Maricheva

   OriginalPaper 17 June 2021 Pages: 455 - 476

   

3. The Collimated Propagation Causes of Astrophysical and Laboratory Jets

   • I. Yu. Kalashnikov
   • A. V. Dodin
   • V. M. Chechetkin

   OriginalPaper Open access 17 June 2021 Pages: 477 - 487

   

4. Ethynyl Around the HII Regions S255 and S257

   • A. I. Buslaeva
   • M. S. Kirsanova
   • A. F. Punanova

   OriginalPaper 17 June 2021 Pages: 488 - 497

   

5. A New Estimate of the Best Value for the Solar Galactocentric Distance

   • V. V. Bobylev
   • A. T. Bajkova

   OriginalPaper 17 June 2021 Pages: 498 - 506

   

6. Active Regions on the Sun with Increased Flare Activity in Cycle 24

   • S. A. Yazev
   • E. S. Isaeva
   • Yu. V. Ishmukhametova

   OriginalPaper 17 June 2021 Pages: 507 - 517

   

7. On the Dynamic Evolution of the Population of Near-Earth Asteroids

   • R. V. Zolotarev
   • B. M. Shustov

   OriginalPaper 17 June 2021 Pages: 518 - 527

   

8. Erratum to: Solution of Kepler’s Equation with Machine Precision

   • M. K. Abubekerov
   • N. Yu. Gostev

   Erratum 17 June 2021 Pages: 528 - 528