Galileo Whispers – Explore Stars, Planets, Galaxies & Beyond https://validator.w3.org/feed/docs/rss2.html Why Deep-Space Radios Borrow a Frequency Reference From Earth Julian Dates: A Continuous Calendar for Astronomical Observations Galileo’s Telescope Helmet and the Problem of Longitude at Sea Meteorites Can Have a Melted Skin Without a Molten Interior Hot-Spring Silica: A Promising but Difficult Place to Find Fossil Life Sun-Synchronous Orbits Keep Mapping Satellites on Solar Time The Lithium Test: A Clue to a Brown Dwarf’s Hidden History Tektites Fall From the Sky, but Their Material Comes From Earth The Missing Link Between Europa’s Surface Oxidants and Ocean Energy Mapping a Planet’s Gravity With Tiny Changes in a Radio Signal One Globular Cluster, Different Chemistry: The Sodium-Oxygen Puzzle The Sunyaev-Zeldovich Effect: How Cluster Gas Distorts the CMB Europa’s Double Ridges: What a Greenland Analog Can Explain Intracluster Light: The Stars Between Galaxies Privacy Policy Terms of Use About Cookie Policy Solar Neutrinos Take the Direct Route Out of the Core The Integrated Sachs-Wolfe Effect: Ancient Light Meets a Changing Universe An Ocean Changes the Way Enceladus Wobbles Ultra-Compact Dwarfs Blur the Line Between Star Clusters and Galaxies How Radio Occultation Reveals a Planet’s Atmosphere J2000, Equinox, and Epoch: Reading a Star Catalog Correctly Galileo’s Inclined Plane: Why a Famous Museum Model Rings Bells Ultra-Diffuse Galaxies Spread Their Starlight Almost Out of Sight Radar Shadows Hide Terrain Even in Full Sunlight RA and Dec vs. Altitude and Azimuth: Two Ways to Locate a Star Galileo’s Water Clock: Measuring Time by Weighing Water How a Solar Storm Can Tear Off a Comet’s Ion Tail The Phosphate Clue Hidden in Enceladus’s Ice Grains Skip Entry Gives a Returning Space Capsule More Room to Maneuver Inside Galileo’s Ship, Shared Motion Hides the Journey A Collapsing Comet Cliff Can Unleash an Outburst Enceladus Has Hydrogen. Could Methanogens Use It? A Mars Rover’s Wheels Can Turn Farther Than It Travels The Helium Flash Doesn’t Blow a Red Giant Apart Standard Sirens: Measuring Cosmic Distance With Gravitational Waves Miranda’s Patchwork Surface Records More Than One Chapter Why Mars Rover Data Usually Takes a Detour Through Orbiters How Stars Build Carbon Across an Unstable Nuclear Bridge A Gravitational-Wave Chirp Carries a Clue to Mass Pluto and Charon Share a Center Outside Pluto The Orbit Puzzle Behind a Dwarf Galaxy’s Hidden Mass A Moving Radar Antenna Can Act Like a Much Longer One Star-Hopping Works Better When the Chart Matches the View Pluto’s Nitrogen Ice Flows Without Becoming a Surface River Faint Stellar Shells Preserve Clues to a Galaxy’s Past Gamma-Ray Telescopes Turn Light Into Particle Tracks Home