Galileo Whispers – Explore Stars, Planets, Galaxies & Beyond https://validator.w3.org/feed/docs/rss2.html Janus and Epimetheus Swap Orbits Without Colliding A Gravitational Lens Can Bring One Distant Star Into View Spin Stabilization Changes How a Spacecraft Sees Space Red Stars Can Trick the Eye During Brightness Estimates Galileo’s Cracked Lens and Its Seventeenth-Century Frame The Chemistry That Keeps a Meteor Train Glowing Could a Virus Be Evidence of Life Beyond Earth? What to Record When a Variable Star Is Too Faint to See Galileo’s Micrometer Used Two Eyes to Measure Moon Positions A Meteor’s Color Is a Poor Chemical Fingerprint Mars Radiation Can Erase Amino Acids Before a Rover Finds Them After a Course Correction, Spacecraft Navigators Measure Again A Nova Can Erupt Again Because Its White Dwarf Survives Adiabatic vs. Isocurvature: Two Ways to Describe Cosmic Seeds Heating Martian Soil Can Change the Organics a Rover Detects Optical Navigation Turns Spacecraft Images Into Trajectory Clues The Disk Instability Behind a Dwarf Nova’s Outburst E Modes and B Modes: Reading the CMB’s Polarization Ganymede’s Magnetosphere Lives Inside Jupiter’s Lensed Quasars: One Source, Several Arrival Times High-Gain and Low-Gain Antennas Make a Pointing Trade-Off Galactic Dust Complicates the Search for Primordial B Modes Europa’s Magnetic Response Points to a Conducting Ocean A Gravitational Lens Can Brighten a Galaxy Without Brightening Each Patch Cold Radio Receivers Add Less Noise to Faint Spacecraft Signals Atmospheric Extinction Can Skew a Visual Star Estimate Jovilabe: A Moving Map of Jupiter’s Moons Why a Meteor’s Sonic Boom Can Arrive Minutes After Its Light 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 Home