Circular Astronomy

Tag: nasa

  • The Spectroscopic Frontier: A Comprehensive Review of Exoplanet Atmospheric Characterization in the JWST Era

    Abstract This literature review examines the dramatic advancements in exoplanet atmospheric characterization, charting the field’s transition from initial detections to detailed, high-fidelity spectroscopic analyses in the era of the James Webb Space Telescope (JWST). The foundational observational techniques—Transmission Spectroscopy (Charbonneau et al. ) and Secondary Eclipse/Emission Spectroscopy (Deming et al. )—have been augmented by the…

  • Giant Impacts, Planetary Instability, and Debris: Exoplanetary Evolution Analogues

    Abstract The architecture and bulk properties of exoplanetary systems confirm that giant impact (GI) events and subsequent dynamical instability, previously inferred from Solar System remnants, are universal mechanisms of planetary evolution. This review establishes observational analogues across distant systems that validate the outcomes predicted by high-resolution Smoothed Particle Hydrodynamics (SPH) simulations: merging, hit-and-run, erosion, and…

  • Giant Impacts, LHB, and Planetary Evolution: A Comprehensive Review of Solar System Cataclysms

    Abstract: Cataclysmic impact events represent the dominant, stochastic drivers shaping the fundamental composition, dynamics, and architecture of the Solar System. This comprehensive review synthesizes the evolution of planetary impact science, tracing the paradigm shift initiated by Eugene Shoemaker’s discovery of shocked quartz to the current era of high-fidelity numerical modeling. Planetary evolution is governed by…

  • The Reusable Rocket Revolution: A Comprehensive Guide to the Technology, Economics, and Future of Spaceflight

    For decades, the concept of a fully reusable rocket capable of airline-like operations has been the ultimate goal in spaceflight, promising to dramatically lower the cost of accessing orbit, AND with the advent of systems like the Space Shuttle and the modern success of SpaceX’s Falcon 9, the world has proven that recovering and reflying…

  • A Decade of Discovery: A Literature Review on the IBEX Ribbon and its Implications for the Heliosphere

    Over a decade ago, a small NASA satellite, the Interstellar Boundary Explorer (IBEX), made a revolutionary discovery that fundamentally changed our understanding of the heliosphere, the protective bubble of solar wind that envelops our solar system. Rather than the smooth, predictable boundary scientists had modeled for years, IBEX’s first all-sky map revealed a startling and…

  • A Comprehensive Literature Review of the NASA Interstellar Mapping and Acceleration Probe (IMAP) Mission

    Objectives, Instrumentation, and Contributions to Heliophysics The heliosphere, the colossal magnetic bubble created by the Sun’s constant solar wind, acts as our solar system’s first and most critical line of defense, deflecting the majority of harmful galactic cosmic radiation. Despite decades of exploration, from the pioneering, single-point measurements of the Voyager missions to the groundbreaking…

  • Solar Activity Affects Earth’s Spin and Length of Day

    Solar Activity Affects Earth’s Spin and Length of Day

    As always, post is in beta mode (work in progress) The solar wind impacts the shape and behavior of the objects in our solar system. See Reference: Sunlight puts asteroids in a spin and Sunlight makes asteroids spin in strange ways Does it also impact Earth’s spin? Created with the assitance of: https://storm.genie.stanford.edu/article/earth-spin-length-of-day-and-sun-activity-since-1995-1318710 Further reading:…

  • What are the Key Components of the  Interstellar Mapping and Acceleration Probe (IMAP) 

    Livestream of the IMAP Assembly https://imap.princeton.edu/clean-room-video-feed The Interstellar Mapping and Acceleration Probe (IMAP) is a NASA mission designed to study the heliosphere and its interaction with the interstellar medium. The spacecraft comprises several key components: 1. Scientific Instruments: IMAP is equipped with ten specialized instruments to achieve its scientific objectives: Charged Particle-Sensing Instrument Installed on…

  • What Are The Primary Objectives of the NASA’s IMAP Mission in 2025?

    The Interstellar Mapping and Acceleration Probe (IMAP) is a NASA heliophysics mission scheduled for launch on April 29, 2025.  Falcon 9 will launch @NASA’s super cool Interstellar Mapping and Acceleration Probe (IMAP), which will help researchers better understand the boundary of the heliosphere, a magnetic barrier surrounding our solar system → https://t.co/HfQaFt4l6Y pic.twitter.com/ORKeuZc1bK — SpaceX…

  • Protoplanetary Disc Oph163131 – Surface Layers Lack Grains Larger than 1 µm

    JWST imaging of edge-on protoplanetary disks. III. Drastic morphological transformation across the mid-infrared in Oph163131. Marion Villenave et. al. https://t.co/aMCnahCjLs pic.twitter.com/NZDlPOVrjK — AstroArxiv (@AstroArxiv) October 2, 2024 https://platform.twitter.com/widgets.js “The lack of sharp-edged structures in the extended patchy emission argues against the presence of shocks and suggests photoexcitation or stochastic heating of material smoothly flowing away…