Pre-Study: What to Study
9 Subtopics · 73 ConceptsAstronomical Unit, Light-Year and Parsec
Importance 4/5 What to StudyMeasuring Cosmic Distances: Parallax, Cepheids and Standard Candles
Importance 3/5 What to Study
Big Bang Theory
Importance 4/5 What to StudyEvidence for the Big Bang: Redshift, Hubble's Law and Cosmic Microwave Background
Importance 4/5 What to StudyDark Energy, Dark Matter and Ordinary Matter
Importance 4/5 What to StudyStandard Model of Cosmology (ΛCDM) and Evolving Dark Energy
Importance 2/5 What to StudyHubble Constant and the Hubble Tension
Importance 3/5 What to Study
Ways of Observing the Universe
Telescopes Across the Electromagnetic Spectrum
Importance 3/5 What to StudyInterferometry and Telescope Arrays (ALMA)
Importance 2/5 What to StudyNeutrino and Multi-Messenger Astronomy (IceCube)
Importance 3/5 What to StudySpace Telescopes
Hubble Space Telescope
Importance 3/5 What to StudyJames Webb Space Telescope
Importance 4/5 What to StudyNancy Grace Roman Space Telescope
Importance 2/5 What to StudyAstroSat
Importance 4/5 What to StudyInternational Ground-Based Observatories
Event Horizon Telescope and the First Black Hole Image
Importance 3/5 What to StudyThirty Meter Telescope
Importance 3/5 What to StudySquare Kilometre Array and the Murchison Widefield Array
Importance 3/5 What to StudyVera C. Rubin Observatory
Importance 2/5 What to StudyTelescopes and Observatories in India
Devasthal Optical Telescope (ARIES, Nainital)
Importance 2/5 What to StudyRadio Telescopes in India: GMRT and SARAS
Importance 3/5 What to StudyGRAPES-3 and Cosmic Rays
Importance 3/5 What to StudyMACE Gamma-Ray Observatory at Hanle
Importance 3/5 What to StudyTelescope Facilities in the Union Budget 2026-27
Importance 3/5 What to Study
The Sun and the Solar Cycle
Layers of the Sun and Sunspots
Importance 3/5 What to StudySolar Cycle and Its Phases
Importance 4/5 What to StudySolar Flares, Coronal Mass Ejections and Their Effects on Earth
Importance 5/5 What to StudySpace Weather Monitoring (SOLAR-1)
Importance 2/5 What to StudyEarth's Magnetic Shield
Geotail
Importance 2/5 What to StudyVan Allen Radiation Belts and Auroras
Importance 4/5 What to StudyEclipses and Lunar Events
Solar Eclipses: Total, Annular and Partial
Importance 3/5 What to StudyLunar Eclipse and the Blood Moon
Importance 3/5 What to StudyBlue Moon, Micromoon and Supermoon
Importance 2/5 What to Study
Gravity
Nature of Gravity
Importance 2/5 What to StudyVariation of Gravity on Earth and the GRACE Mission
Importance 3/5 What to StudyMicrogravity and Its Research
Importance 3/5 What to StudyGeneral Relativity
Einstein's General Theory of Relativity
Importance 4/5 What to StudyImplications and Applications of General Relativity
Importance 2/5 What to StudyGravitational Lensing
Importance 3/5 What to StudyGravitational Waves
Gravitational Waves: Nature and Sources
Importance 5/5 What to StudyLIGO and the Detection of Gravitational Waves
Importance 4/5 What to StudyLIGO-India
Importance 4/5 What to StudyLISA: Space-Based Gravitational-Wave Observatory
Importance 4/5 What to Study
Birth of a Star
Stars and Nuclear Fusion
Importance 3/5 What to StudyStellar Nebula, Protostar and T Tauri Stage
Importance 2/5 What to StudyMain Sequence Stage
Main Sequence Stars, Lifespan and Red Dwarfs
Importance 3/5 What to StudyBlue Straggler Stars
Importance 2/5 What to StudyDeath of a Star
Red Giants and Supergiants
Importance 3/5 What to StudyPlanetary Nebulae and White Dwarfs
Importance 3/5 What to StudyChandrasekhar Limit
Importance 4/5 What to StudyNova and Supernova Compared
Importance 3/5 What to StudyNeutron Stars and Black Holes
Neutron Stars, Pulsars and Magnetars
Importance 4/5 What to StudyBlack Holes: Formation and Types
Importance 5/5 What to StudyStructure of a Black Hole
Importance 3/5 What to Study
Galaxies and the Milky Way
Importance 2/5 What to StudyActive Galaxies and Radio Galaxies
Importance 2/5 What to StudyQuasars and Blazars
Importance 3/5 What to Study
Planets, Dwarf Planets and Moons
IAU Definition of a Planet
Importance 4/5 What to StudyDwarf Planets and Pluto's Reclassification
Importance 4/5 What to StudyMoons and Ploonets
Importance 3/5 What to StudyExoplanets and Habitability
Exoplanets and How They Are Detected
Importance 4/5 What to StudyFormation of Giant Planets in Protoplanetary Disks
Importance 2/5 What to StudyGoldilocks Zone
Importance 4/5 What to StudyAstrobiology and the Search for Life Beyond Earth
Importance 3/5 What to Study
Asteroids and Belts of Small Bodies
Asteroids and the Main Asteroid Belt
Importance 5/5 What to StudyKuiper Belt and Oort Cloud
Importance 3/5 What to StudyAsteroid Psyche and NASA's Psyche Mission
Importance 2/5 What to StudyMeteoroids, Meteors and Meteorites
Meteoroids, Meteors and Meteorites Distinguished
Importance 4/5 What to StudyFireballs, Bolides and Impact Craters
Importance 2/5 What to StudyComets
Comets: Composition, Tails and Orbits
Importance 5/5 What to StudyInterstellar Objects (3I/ATLAS)
Importance 3/5 What to StudyPlanetary Defence
Near-Earth Objects and Asteroid Tracking
Importance 3/5 What to StudyDART Mission and Kinetic Impact
Importance 4/5 What to StudyESA's Hera Mission
Importance 3/5 What to Study