Sharper graphics, a classroom mode for teachers, and a simpler start. SHARPER, DEEPER DIVES • HD graphics are rebuilt to draw the dive on the GPU. • The dive has depth: colour nebulae, soft lights in front of the run, shockwave ripples when you smash, and heat haze around your orb. • Settings > Graphics lets you turn each effect on or off. • In Low Power Mode, or when the phone runs hot, the game lowers its resolution. If it gets hot, HD pauses until it cools. FOR THE CLASSROOM • Classroom mode opens the Gravity Lab and Solar System Lab directly, with no game menus or rewards on screen. Turn it on in Settings > Science, or open a classroom link. • Classroom mode has its own Science Quiz, with no rewards. • Kepler's law figures now use NASA's sidereal orbital periods. A SIMPLER START • New players see three choices: Drop In, Guided Drop and the Observatory. The rest opens after the first drop. • Replay the Guided Drop at any time from Settings. • Ranks and Mastery are now tabs in the bottom bar. • The Observatory puts the labs first. YOUR VESSEL • Vessel Studio shows every option as a tile, with a larger live preview, in HD when HD is on. • Trail particles now recolour your orb's own sparks. • The phoenix beats its wings, the koi's fins ripple and the dragon's tail slithers. IN THE DROP • A new level-cleared screen, with rank medallions. • After a continue, the dive waits for your touch. • The module button is bigger and ripples when a charge is ready. • Fixes for Ranks after a progress reset, a Star Forge crash, and missions that counted twice

New hazards. Deeper drops. A bigger Science Lab. THE DIVE • Nebula clouds from level 20. They thicken the void and drag hardest on an expanded orb. • Black holes from level 30. They pull you sideways. Stay compressed to skim past the horizon. • Every level now asks for a deeper drop than the last. • Thick obsidian slabs are slimmer, at the same spacing. SCIENCE LAB • The Lab now opens on a live orbit map of the planets, moving at their real relative periods. • Solar System Lab: all eight planets plus a Hot Jupiter, and an Expand view of the whole system on one shared clock. • Wien's law: slide a star from 2,400 K to 40,000 K and watch its peak and its colour shift. Betelgeuse, the Sun and Rigel are one tap away. • Compress Earth: squeeze the planet down to its Schwarzschild radius, 8.87 mm, and watch escape speed climb to the speed of light. • Terminal velocity: an orb falls in real time beside its exact speed curve. Try a skydiver, then a baseball. • Mastery bars now shine as you progress. LOOK AND FEEL • Sharper everywhere: up to 3× native pixel density on iPhone and iPad. • Rankings get glass crests for the top three and show how far you've moved since your last look. • The PULSE DIVE sign now breathes like a real neon tube (it stays still with reduced motion on). • iPad stays in portrait, so rotating no longer disturbs the screen. • The shop lights up: every module and upgrade has its own neon colour.

New hazards. Deeper drops. A bigger Science Lab. THE DIVE ---------------------------------------------------------------- • Nebula clouds from level 20. They thicken the void and drag hardest on an expanded orb. • Black holes from level 30. They pull you sideways. Stay compressed to skim past the horizon. • Every level now asks for a deeper drop than the last. • Thick obsidian slabs are slimmer, at the same spacing. SCIENCE LAB ---------------------------------------------------------------- • The Lab now opens on a live orbit map of the planets, moving at their real relative periods. • Solar System Lab: all eight planets plus a Hot Jupiter, and an Expand view of the whole system on one shared clock. • Wien's law: slide a star from 2,400 K to 40,000 K and watch its peak and its colour shift. Betelgeuse, the Sun and Rigel are one tap away. • Compress Earth: squeeze the planet down to its Schwarzschild radius, 8.87 mm, and watch escape speed climb to the speed of light. • Terminal velocity: an orb falls in real time beside its exact speed curve. Try a skydiver, then a baseball. • Mastery bars now shine as you progress. LOOK AND FEEL ---------------------------------------------------------------- • Sharper everywhere: up to 3× native pixel density on iPhone and iPad. • Rankings get glass crests for the top three and show how far you've moved since your last look. • The PULSE DIVE sign now breathes like a real neon tube (it stays still with reduced motion on). • iPad stays in portrait, so rotating no longer disturbs the screen.

What's New in Pulse Dive 1.3 (Build 39): • Solar System Perturbation Lab: Explore how planetary systems respond to change. Adjust orbital distance, planet mass, and host star luminosity in real time to observe effects on orbital period, equilibrium temperature, Hill spheres, and Roche tidal limits. • Equivalence Principle Testing: Toggle the equivalence of gravitational and inertial mass to see how universal free-fall physics holds our solar system together. • Permanent Navigation Dock: Quick, unified access across all screens to Dive, Missions, Science Hub, Hangar, and Settings. • Visual & Tactile Polish: Rebalanced global leaderboard interface, richer interactive feedback on daily claims and progression milestones, and enhanced vessel detail.

A new Science Lab, real physics you can drive yourself, and an honest dive readout. SCIENCE LAB The daily quiz was buried two taps deep under Mastery, which was the wrong place for it. There is now a Science Lab on the main menu holding the daily quiz, the new Gravity Lab and the full source list in one screen, with a dot when the quiz is waiting for you. GRAVITY LAB Set a mass and a distance and watch Newton's law of universal gravitation solve live. It works out orbital velocity and period, escape velocity, tidal acceleration and the Roche limit, then shows its answers next to the published ones so you can check the arithmetic yourself. Kepler's third law is run across all eight planets. The Moon's tide on Earth, Saturn's rings and the Earth-Moon Roche limit all land where the literature says they should. A MORE HONEST READOUT The in-dive physics numbers were tuned for feel rather than accuracy. The drag model has been rescaled so mass, density, terminal velocity and drag coefficient are real quantities in real units, and the game now says plainly where it is a stylised arcade model rather than a simulation. SOURCES The source list used to cover the 61 facts. It now covers all 151 facts and quiz questions, grouped by topic, so every claim in the app can be traced to a published NASA, ESA, IAU, LIGO or Event Horizon Telescope reference.

A home screen widget, a much deeper science pool, and a way to say thanks. WIDGET The Astrophysics Fact of the Day now lives on your home screen and lock screen. It shows the fact and the source it came from, changes at midnight, and works with no account and no network. MORE SCIENCE The fact pool grew from 24 entries to 61, and the quiz from 48 questions to 90. Before this, a daily fact came back around every 24 days. Every new fact and question is sourced from published NASA, ESA, IAU, LIGO or Event Horizon Telescope references, and you can read the full list under Settings > Fact sources. TIP JAR Entirely optional, and it unlocks nothing. The whole game is already yours. If Pulse Dive is worth something to you, there is now a way to say so.