Solar System Research

Article	Citations
On the Influence of the Rayleigh–Taylor Instability on the Formation of Dust Clouds in the Mesosphere of Mars	15
On the Theory of an Inverse Energy Cascade in Helical Turbulence of a Nonmagnetic Astrophysical Disk	14
Analysis of Hydrogen Concentrations in a Tectonically Deformed Impact Crater in the Area of the South Pole of the Moon	14
Native Nickel–Iron Metals from Lonar Crater Impactites (India) and Regolith of the Moon	13
Features of Degassing of the Main Silicate Minerals in the Temperature Range 200–1000°C	12
Growth of the Moon Due To Bodies Ejected from the Earth	11
Chandrasekhar’s Integral Equilibrium Theorems Modified in the Context of Non-Gaussian Kappa Statistics for a Spherically Symmetric Protostar Cloud	10
Elements of Formalism of Curado–Tsallis Nonadditive Statistics. Rathie–Kannappan Difference Information	9
Charged Dust on the Moon	9
Relativistic Effect of Geodetic Precession in the Rotation of Dwarf Planets and Asteroids of the Solar System	9
Coronae–Sources of Young Volcanism on Venus: Topographic Features and Estimates of Productivity	8
Erratum to: LIDAR for Investigation of the Martian Atmosphere from the Surface	8
Low-Energy Transit Trajectories Near Libration Points	7
The Spirin’s Concept of the RNA World	7
Photochemical Equilibrium and Ozone Balance Equation in the Nighttime Hydroxyl Layer on Mars	7
Astronomical Aspects of the Origin and Development of Life	6
Spatial and Genetic Relations of Coronae, Lobate Plains, and Rift Zones of Venus	6
Dust Complex for Studying the Dust Particle Dynamics in the Near-Surface Atmosphere of Mars	5
Structure of the Martian Dayside Magnetosphere: Two Types	5
Study of Small Bodies of the Solar System: Odyssey-Asteroids Project	5
On the Design and Operation of Heat Pipes as Part of the Thermal Control Systems of the Landing Module of Interplanetary Stations for the Study of the Solar System Bodies	4
Experimental Study of the Resistance of Corrugated Mesh Micrometeoroid/Orbital Debris Shields	4
Special Groups of Potentially Hazardous Asteroids	4
Results of Polarimetric Monitoring of Near-Earth Asteroids at the 2.6-m KrAO Telescope and the 2-m Telescope of the Terskol Peak Observatory	4
Numerical Modeling of the Dynamics of Artificial Satellites of the Moon	4

Detection of Collisional Asteroid Orbits Under Observable Nonlinearity in the Problem of Orbit Improvement	4
Gaia Data Release 3: Distribution of Spectral Groups of Near-Earth Asteroids	4
The Impact of Black Radiation on the Jeans Gravitational Instability Criterion in a Circumstellar Plasma Disk in View of Nonisentropic Effects	4
Constructing an Initial Confidence Region Far from the Observational ARC and Estimating the Probability of an Asteroid Impact with the Earth	4
The Influence of the Exosphere of an Active Asteroid on the Polarization of Scattered Light and the Possibility of Estimating Its Properties from Ground-Based Measurements	4
Spatial and Genetic Relationships of Volcanic Coronae and Large Volcanoes of Venus	4
Impact Craters on Earth with a Diameter of More than 200 km: Numerical Modeling	4
Selected Problems of Classical and Modern Celestial Mechanics and Stellar Dynamics: I–Classical Results	3
Internal Structure of the Magnetic Funnel in the Polar Heliosphere	3
Improvement of a Uniaxial Seismic Accelerometer, an Integral Part of the Three-Axis Seismic Accelerometer SEM (ExoMars Seismometer)	3
Searching for Life on Venus: History of the Problem and Basic Concepts	3
Migration of Celestial Bodies in the Solar System and in Some Exoplanetary Systems	3
Astrometry and Photometry of Potentially Dangerous Asteroid 65690 (1991 DG)	3
The Generation of O2 and CO by CO2 Glow Discharge for In-Situ Martian Atmospheric Utilization	3
Model Variations of the Crust Thickness of Mars and Venus Using the Love Numbers Method	3
On the Kinetic Features of Sedimentation of Dust Particles in the Martian Atmosphere	3
Vyacheslav M. Kovtunenko: Scientist and Designer of Space Technologies	3
Estimation of the Neutron Component of the Radiation Background in the Gale Crater on Mars	3
Drake Formula and Exoplanets	3
Radar Images of Permanently Shadowed Regions at the South Pole of the Moon	3
Jeans’ Instability of a Protoplanetary Disk with Accounting for the Magnetic Field and Radiation Modified within the Nonextensive Tsallis Kinetics	3
Search for Extraterrestrial Life: the “Goldilocks Zone” vs. the “Snow Maiden Zone”	3
Ultralow Frequency Resonators: on the 80th Anniversary of the Discovery of Alfvén Waves	3
Influence of Planetary Encounters on the Magnitude of the Yarkovsky Effect in Asteroid Dynamics	3
IPI-500 Pulsed Plasma Injector for Scientific Experiments on Board the International Space Station	3
Analysis of Single Event Effects Created by Space Ionizing Radiation in the Microcircuits of the Interplanetary Spacecraft Radio Electronic Equipment	3
Impact Structures on Venus as a Result of Asteroid Destruction in the Atmosphere	3
Astrometric and Photometric Studies of a Potentially Hazardous Asteroid (138971) 2001 CB21	3
Accuracy of Estimation of the Probability of Asteroid Collision with the Earth Based on Linear Stochastic Modeling of Parametric Uncertainty	2
Scientific Instrumentation Complex for the ExoMars-2022 Landing Platform	2
Geological Structure of the Upper Part of Nirgal Vallis, Mars	2
Study of Migration of Giant Planets and Formation of Populations of Distant Trans-Neptunian Objects in the Nice Model	2
The Surface Morphology of the Partially Shadowed Floors of Three Craters near the Pole of the Moon	2
Extra-Atmospheric Astronomy and the New James Webb Space Telescope	2
Resonant Outcomes of Interactions of Massive Interstellar Objects with the Solar System	2
Simulation of the Rotational Dynamics and Light Curves of Saturn’s Small Moons in the Fast Rotation Mode	2
On the Prospects for Estimating the Properties of Particles in an Active Asteroid Exosphere by Features in the UV and Visible Reflectance Spectra	2
Secular Resonances in the Zones of Action of Tesseral Resonances 1 : 5–1 : 11 and Features of the Orbital Evolution of Objects Inhabiting these Zones	2
Potentially Primary Xenon Components in Nanodiamond-Enriched Meteorite Fractions: New Isotopic Compositions and Carrier Phases	2
Aerostat Probe for Studying the Atmosphere and Surface of Venus	2
Evolutionary History of the Atmosphere of the Young Mini-Neptune HD 207496b	2
Features of Foreshock Transients at Planetary Bow Shocks	2
Motion of Planetesimals in the Hill Sphere of the Star Proxima Centauri	2
Rényi Thermodynamics as a Mandatory Supporting Basis for Adequate Modeling of the Evolution of a Protoplanetary Gas-Dust Disk with a Fractal Structure	2
Sublimation-Driven Dust Activity of Primitive-Type Asteroids as a Sign of the Presence of Н2О Ice	2
On the Question of the Origin of the Equatorial Rift on Pluto’s Moon Charon	2
Design and Optimizing an Interplanetary Trajectory of a Spacecraft to Mercury	2
Surface Thermal Inertia of Near-Earth Asteroid (469219) Kamo`oalewa: Statistical Estimation and Implications	2
Determination of the Motion Parameters of Near-Earth Objects from Position Measurements Performed at the Terskol Observatory	2
New Morphological Catalog of the Craters of Mercury	2

Erratum to: Daylight Visibility of Jupiter with the Naked Eye	2
Spectrophotometry and Other Remote-Sensing Methods to Study Asteroids: Achievements and New Approaches	2
Study of the Dynamical Evolution of the Compact Planetary System Kepler-51	2
Method for the Preliminary Thermal Analysis of the Dashboard of the Lunar Lander: Part 2. Measurement of the Temperature of Mounting Seats and TCS Modification Options	2
Jeans Gravitational Instability of a Rotating Collisionless Magnetized Plasma with Anisotropic Pressure	2
Lunar Ephemeris Parameters for the EPM2023a	1
Obtaining Plasma–Dust Clouds from Meteoritic Matter, its Analogs and Simulants of Lunar Regolith Using Microwave Discharge	1
Features of Space Debris Migration in the Earth–Moon System	1
Formation of a Plasma Layer During the Passage of the Moon through the Magnetic Ropes of the Solar Wind	1
Reduction of the Mass of the Main Asteroid Belt and the Mars Zone due to Solar Radiation and the Influence of Jupiter—II: Scenario of the Evolution of the Residual Disk Density	1
The Evolutionary State of Near-Earth Comet 7P/Pons–Winnecke	1
Selecting a Landing Site for the Luna 27 Spacecraft	1
The Geochemical Effect of Impact Processing of Polar Regolith on the Moon	1
Estimation of the Rate of Slope Processes and Morphological Variability of Kilometer-Sized Impact Craters on the Moon	1
Development of Lunar Soil Simulant for Sintering Experiments	1
Analytical Approximations of the Characteristics of Nighttime Hydroxyl on Mars and Intra-Annual Variations	1
Influence of the Dielectric Permittivity of the Surface Layer on Charging of Airless Cosmic Bodies	1
Analysis of Spacecraft Flight Trajectories to Venus with a Flyby of Asteroids	1
Estimation of Ejecta Thickness from Impact Craters in the South Polar Region of the Moon	1
Resonant Interactions of Poincaré Waves in the Shallow Water Approximation	1
Methodological Aspect of the Problem of Structural Identification of the Parameters of the Dynamic Scheme of a Spacecraft	1
Some Characteristic Features of Latitudinal Variations in Methane and Ammonia Absorption on Jupiter	1
Asteroid 4 Vesta: from Ground Observations to the Dawn Mission–Evolution of Concepts of Mineralogical Composition and Surface Structure	1
Development of the Concept of Intelligent Mobile Platforms for the International Scientific Lunar Station	1
Plasma-Dust Processes in the Vicinity of Comets	1
Nonlinear Oblique Whistler Wave in Solar Wind Plasma in the Vicinity of Earth’s Foreshock	1
Coronae of Venus: Geological, Topographic and Morphometric Characteristics	1
On the Probability of Capturing Preplanetary Bodies into the Protolunar Swarm During the Formation of the Earth−Moon System	1
Seasonal Variation of Martian Surface Temperature over Gale Crater and Surroundings	1
The Influence of Water on the Formation of a Dusty Plasma Exosphere above the Surface of an Asteroid	1
Manifestations of Anomalous Dissipation in Dusty Plasma in the Solar System: Atmosphereless Cosmic Bodies	1
Calculation of Precession of Space Objects Using an Approximate Theory of a Gyroscope with Error Estimation	1
Numerical Simulation of the Orbital Motion of Geosynchronous Objects from Positional Observations	1
Effects of Modified Potential and Quantum Correction in the Generalized Perturbed Interacting CR3BP with Variable Mass	1
Simulation Analysis of Precise Orbit Determination of Cislunar Space Probe Based on Two-Way Range-Rate and Laser Ranging	1
Preface	1
4D Modeling of Kinematics of a Selected Galaxy Subsystem	1
Electromagnetic Noise in the Near-Surface Martian Atmosphere: Research Methods	1
Studies of Isotopic Fractionation of D/H Water Ice in Lunar Regolith	1
Experimental Transformation of the Chelyabinsk LL5 Meteorite Matter of Light-colored Lithology into Dark-colored Lithology	1
Internal Structure of Venus Based on the PREM Model	1
Map of the Circumpolar Regions of the Moon from Latitudes +/–55°	1
Analysis of Acoustic Wave Phenomena in Radiation Magnetic Hydrodynamics	1
When Did Stars Create the Chemical Basis of Life?	1
Two-Parameter Sharma–Mittal Entropy Functional as the Foundation of the Family of Generalized Thermodynamics of Nonextensive Systems	1
Comet 2I/Borisov in Comparison with Comets of the Solar System	1
A Plausible Minimum Value of the Neptunian Tidal Dissipation Factor Estimated from Triton’s Astrometric Observations	0
Models of the Night-Sky Brightness and the Efficiency of Searching for Exoplanets with the Microlensing Method	0
Cosmic Regulators of the Earth’s Climate	0
Ground Testing of the Landing Platform Television System of the Exomars-2022 Spacecraft	0
Calculation of the Non-Gravitational A2 Parameter Using Ground-Based Observations of the Apparent Close Approaches between Near-Earth Asteroids and Gaia Stars	0
The δ-Cancrids Meteor Complex	0
Emilkowalski Family Formation Scenario Based on Modeling of the Probabilistic Evolution of Asteroid Orbits	0
Age Estimation of Young Asteroid Pairs	0
The First Space Project of Georgy N. Babakin	0
Method of Checking the Spectral Sensitivity of Optical Paths of the Sun-Terahertz Scientific Instrumentation in the Frequency Range 0.4–20 THz	0
Climate Disasters at the Dawn of Mankind and their Long-Term Consequences	0
Accuracy of Methods for Estimating the Age of Pairs of Trans-Neptunian Objects in Close Orbits	0
Solution of the Euler–Lambert Problem Based on the Okhotsimsky–Egorov Ballistic Approach	0
Determination of the Preliminary Orbit in the Coplanar Case	0
Thermal Sounding of the Martian Atmosphere Using the ACS TIRVIM FT-IR Spectrometer on Board ExoMars TGO: Method for Solving the Inverse Problem	0
One-Dimensional Model of Vertical Transport of Chemical Components in the Mars Atmosphere up to the Lower Thermosphere	0
Review of Models of Black Bodies Used in Aerospace Vehicles: Part 2. Promising Models of Onboard Black Bodies	0
Results of Observation of the Occultation of the Star TYC 5254-00839-1 by Triton in 2022 at the Sanglokh Observatory	0
Magnetic Exoplanets in the Subalvenic Stellar Wind: Collimators of the Interplanetary Magnetic Field	0
On the Modeling of a Compressible MHD Turbulence of an Accretion Protoplanetary Disk	0
A Simplified Geometrical Approach to Calculation of Solar Eclipses of a Planet’s Satellite in Solving Practical Problems of Venus Exploration	0
New Spectrometer ULTIMAN for Space Plasma Research	0
Rotational Dynamics of Asteroids Approaching Planets	0
Features of Degassing of the Carbonaceous Chondrite Dar al Gani 190 (CO3) in the Temperature Range 200–800°C	0
Impact Crater with Traces of Tectonic Deformation in the South Polar Region of the Moon	0
Some Thoughts on Discoveries in Astrobiology	0
Geological Details of the Main Landing Ellipses of Luna-25	0
Influence of Mantle Inelasticity on the Model Value of the Chandler Wobble Period of Mars	0
Simulation Experiments on the Deposition of Charged Particles of LMS-1D Regolith on the Solar Panels of Spacecraft	0
Accelerometers of the Meteorological Complex for the Study of the Upper Atmosphere of Mars	0
Erratum to: Pulkovo Observations of the Major Planets, Their Satellites and Pluto	0
Observations of Potentially Hazardous Asteroid 139622 (2001 QQ142)	0
Change in Plasma Composition During the Rotation of the Magnetopause of Mars	0
Influence of Asteroid Shape Deformations When Approaching the Earth on Rotational State Disturbances and the Value of the Yarkovsky Effect	0

Nonthermal Atmospheric Loss of the Sub-Neptune π Men c Due to Exothermic Photochemistry	0
Analysis of Water in the Regolith of the Moon Using the LASMA-LR Instrument During the Luna-27 Mission	0
Advancement and Challenges in Methods of Predicting the Motion of Near-Earth Asteroids	0
Generation of Tsunami Waves During the Fall of 10-km Asteroids into the Ocean	0
The Role of Radial Transport in Forming Minor Bodies of the Outer Solar System	0
Earth-Like Models of the Internal Structure of Venus	0
Studying the Dynamics of Multiplets of Orbital Resonances of Asteroids with Small Perihelion Distances	0
Assessment of “Meteor Airburst” Radiation in the Atmosphere of Venus	0
Contaminants in the Lunar Regolith	0
New Results of Radiation Study on Board TGO ExoMars in 2018–2023	0
The Three-Body Problem in Shape Space	0
Negative Polarization of Celestial Bodies: Review and Computer Simulation	0
Ponderomotive Disturbance of the Solar Wind Velocity before the Fronts of Shock Waves	0
Electromagnetic Phenomena Accompanying the Passage of an Iron Meteorite Through the Earth’s Atmosphere	0
Anisotropic MagnetoResistance (AMR) Instrument to Study the Martian Magnetic Environment from the Surface: Expected Scientific Return	0
The EXO-UV Program: Latest Advances of Experimental Studies to Investigate the Biological Impact of UV Radiation on Exoplanets	0
Mineralogical Characteristics of the Upper Part of the Nirgal Vallis, Mars	0
Search for New Members of Young Asteroid Families	0
Origin of Life on Earth and the Space Project Luna-28	0
Radar Mapping of the South Polar Region of the Moon at 4.2 cm Wavelength	0
Lunar Electric Propulsion Demonstrator Coupled with the Fregat Space Tug: An Experimental Mission Concept	0
Variations in F10.7 by New Dates of Maximum Meteor Streams	0
Editorial	0
Electromagnetic Phenomena Induced by Charged Dust Particles Dynamics in Planetary Atmospheres: Laboratory Simulations and Field Observations	0
Construction of the Formalism of Statistical Thermodynamics of Nonextensive Systems Based on the Kaniadakis Kappa-Entropy	0
The Flux of Differentiated Meteorites to the Earth	0
Wind Speed Variations at the Venus Cloud Top above Aphrodite Terra According to Long-term UV Observations by VMC/VENUS Express and UVI/AKATSUKI	0
Modeling of the Processes of Formation of Dust Fractal Clusters in a Protoplanetary Cloud	0
Pulkovo Observations of the Major Planets, their Satellites and Pluto	0
Search for Signs of Sublimation-Driven Dust Activity of Primitive-Type Asteroids Near Perihelion	0
The Connection Between the April Chi Librids Meteor Shower and Near-Earth Asteroids	0
Modification of Gravitational Instability Criteria for Astrophysical Disks within Nonadditive Thermodynamics	0
On a Two-Zone Approach to Solving the Problem of Detecting NEAs	0
Features of Degassing of the Allende (CV3) Carbonaceous Chondrite in the Temperature Interval of 200–800°C	0
Daylight Visibility of Jupiter with the Naked Eye	0
Spectra of Earth-like Exoplanets with Different Rotation Periods	0
Precise Orbit Determination for Cislunar Space Targets Based on Ground/Space/Lunar Based Integrated Optical Observation Model	0
Comparison of the Surface Morphology of the Floors of Craters near the Pole and at Mid-Latitudes of the Moon	0
Temperature and Pressure Sensors of the Meteorological Complex for the Study of the Mars’s Atmosphere	0
Natural Alloys of the Cu–Ni System from Impactites of the Lonar Crater (India) and Lunar Regolith	0
Porous Dust Clusters in Protoplanetary Disks as Catalysts for Formation of Complex Preorganic Compounds	0
Geotechnical Properties of Lunar Soil Analogue VI-75 in Dry and Frozen State	0
Analytical Approximations of the Characteristics of Nighttime Hydroxyl on Mars and Intra-Annual Variations	0
Propagation of Hydromagnetic Disturbance Waves and Gravitational Instability in a Magnetized Rotating Heat-Conducting Anisotropic Plasma	0
On the Nature of Electrophone Phenomena Accompanying the Passage of Meteoric Bodies through the Earth’s Atmosphere	0
Motion Properties under Various Perturbations in the Circular Restricted 3-Body Problem	0
Analysis of the Evolution of the Moon and the Possible Dynamics of Its Body	0
Improved Numerical Model of Motion of Artificial Satellites of the Moon and its Application in Research Features of the Dynamics of Circumlunar Objects	0
On the Study of Spatial Variability of the Composition of the Substance of Mars in Experiments on Gamma-Ray Spectroscopy on Board the Mobile Vehicle using the Method of “Tagged Charged Particles”	0
Selected Problems of Classical and Modern Celestial Mechanics and Stellar Dynamics: II–Modern Studies	0
Ephemerides of Asteroid Satellites and Estimation of Their Accuracy	0
Determination of Variation Lines and Modeling of Initial Trajectory Dispersion in the Presence of Strong Nonlinearity in Orbit Improvement Problems	0
Secular Orbital Dynamics of Exoplanet Satellite Candidates	0
Mapping Hyperion in Projections of the Triaxial Ellipsoid Based on a New Reference Network and a Digital Terrain Model	0
Stable Orbits in the Feeding Zone of the Planet Proxima Centauri c	0
Current Knowledge of Objects Approaching the Earth	0
Efficient Techniques to Cope with Chaotic Dynamics in Deterministic Systems	0
On the Power Law for Describing the Mass Distribution of Fragments of a Disrupted Cosmic Body	0
On the Approximation of Mass Distribution for a Celestial Body by a Pair of Spheres on the Example of Asteroid (486958) Arrokoth: Comparative Analysis	0
Analysis of Thermal Protection Using an Anisotropic Material During the Return Capsule Descent	0
Chandrasekhar’s Integral Stability Criterion Modified within the Kaniadakis κ-Statistics for an Equilibrium Cloud of a Protostar	0
Potential Primary Xenon Components in Nanodiamond-Enriched Fractions of Meteorites: Characteristics of Isolated Components During Oxidation	0
Spacecraft Motion Control During Landing on the Lunar Surface	0
Space Weathering Change of Grain Surfaces using Meteorite Tests and Related Possible Consequences on Asteroid Properties	0
Dynamic Evolution of Pairs of Trans-Neptunian Objects	0
Study the Non-Linear Stability of Non-Collinear Libration Point in the Restricted Three-Body Configuration When the Shapes of the Primaries are Taken as Heterogeneous and Finite-Straight Segment	0
Estimate of Core-Powered Mass-Loss of Primary Atmosphere of the Mini-Neptune (Ocean Planet) HD 207496b	0
Estimating the Asteroid’s Impact Risk under Significant Nonlinearity in the Orbit Determination Problem	0
Impact-Caused Regolith Reworking within the Polar Regions of the Moon	0
The Influence of Compressibility and Rotation on the Formation of the Dynamo Effect in Magnetized Turbulent Space Plasma	0
Constructing an Entropic-Force Model for the Expansion of the Universe Caused by Gravitationally-Induced Production of Dark Matter	0
Synergetic Approach to Constructing a Structured Turbulence Model	0
Classification of Craters Clusters in the Expanded Catalog of Fresh Impact Sites on Mars	0
On the Nature of Impacts Causing Cometary Outbursts	0
An Optically Thin and Thick Dust Exosphere of Active Asteroids: Spectral Signs and Possible Formation Mechanisms	0
Algorithms for Computing Hamiltonian Normal Form	0
On the Progress and Problems of Observational Meteor Astronomy	0
Features of Designing a Star Catalog for Orientation Sensors of Space Vehicles	0
Non-gravitational Mechanism of Comets’ Ejection from the Oort Cloud Due to Cometary Outbursts	0
Subsurface Water Ice Content in the Cabeus Crater According to Measurements by the LEND Instrument onboard the NASA LRO Orbital Mission	0
Transport Characteristics of a Hierarchical Near-Surface Layer of the Nucleus of Comet 67P/Churyumov–Gerasimenko	0
Crater Formed by the Impact of the Luna-25 Spacecraft	0
On the Chandler Period of Venus	0
The Flight to Neptune and its Moons Triton and Nereid as a Demonstration of the Possibility of using Low-Thrust Engines in Missions to Giant Planets	0
O2 (а1Δg) Airglow at 1.27 μM and upper Mesosphere Dynamics on the Night Side of Venus	0
Determination of Dynamic Parameters of a Group of Space Debris Objects in Geostationary Area According to Positional and Photometric Measurements	0
Non-Hydrostatic Stresses in the Martian Interior without Accounting for the Long-Wavelength Component	0
The Method of Linearization in Optimization Problems of Low-Thrust Spacecraft Trajectories: Optimal Nodes Layout	0
The Kerr-like Primaries in the Circular Hill Problem with Variable Mass	0
Construction of a Spacecraft’s Return Trajectories from the Moon to the Earth for Delivering Regolith Samples to a Defined Zone of the Russian Federation	0
Valley Relief of the Northeastern Part of Terra Cimmeria on Mars	0
On the Validity of the Pancake Models of the Falls of Cosmic Bodies in the Atmosphere	0
Disturbances in the Rotational Dynamics of Asteroid (99942) Apophis at its Approach to the Earth in 2029	0
The Faint Young Sun Paradox and Why Trees Are Green	0
Constructing a Scenario for the Formation of the Emilkowalski Family Based on Modeling the Evolution of Nominal Orbits of Asteroids	0