Science & Discovery
Space science and discovery from Cosmic Herald — planetary science, cosmology, astrobiology, and the search for life beyond Earth.
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Science & Discovery
SpaceX Launches Secretive 'Starfall' Reentry Demo — What the Silence Signals
SpaceX flew a Falcon 9 mission called Starfall — described only as a reentry capsule demonstration — and disclosed almost nothing about it. The deliberate operational security around a clearly serious program may signal something significant ahead.
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Science & Discovery
Trump Executive Order Pushes NASA Toward Quantum-Secured Space Communications
A new executive order directs NASA to plan quantum communication and sensing infrastructure in orbit, accelerating the push toward theoretically unhackable satellite links.
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Science & Discovery
Webb and Hubble Team Up to Reveal an Ancient Relic of the Milky Way's Formation
Terzan 5 isn't a globular cluster after all. Webb and Hubble data reveal four generations of stars spanning 10 billion years, reclassifying it as a rare 'bulge fossil fragment' that survived the Milky Way's chaotic assembly.
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Science & Discovery
The MEO Durability Crisis: Why LEO-Designed Hardware Will Fail the New Orbital Economy
Satellites built with LEO-grade components face premature failure in medium Earth orbit's punishing radiation belt, threatening the economics of planned MEO constellations and servicing hubs.
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Science & Discovery
From Cold Gas to Nuclear Fire: NASA Maps Every Step of How Stars Ignite
A new NASA visualization traces star formation from the first gravitational stirrings in a molecular cloud all the way to main-sequence ignition — a single diagram synthesizing decades of multi-mission observations.
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Science & Discovery
An Interstellar Visitor's Chemical Fingerprint Is Unlike Anything in Our Solar System
Webb's MIRI instrument detected methane, carbon dioxide, and water vapor on comet 3I/ATLAS — the first mid-infrared chemical fingerprint ever taken of an interstellar object. The methane-to-water ratio has no good analog among solar system comets, hinting at a formation environment radically different from our own.
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Science & Discovery
NASA Enlists the Public to Hunt for Faint Objects Hiding in the Sun's Cosmic Backyard
NASA's new citizen science project invites volunteers to search archival data for undiscovered brown dwarfs and dim objects lurking within a few dozen light-years of the Sun.
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Science & Discovery
NASA's Cold Atom Lab Gets Its Fourth Major Upgrade to Study Quantum Gases in Space
NASA activated an upgraded Cold Atom Lab aboard the ISS with new magnetic systems and electronics, cooling atoms below -459°F to create Bose-Einstein condensates and test quantum technologies in microgravity.
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Science & Discovery
Physicists Propose Gravastars as Singularity Alternative: Collapsing Stars May Birth Miniature Universes
Researchers propose that dying stars avoid black hole singularities by spawning tiny universes within themselves. Dark energy expansion counters gravity, creating stable gravastars—and answering a 25-year-old physics debate.
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Science & Discovery
South Africa's MeerKAT Detects Most Distant Hydroxyl Megamaser at Universe's Halfway Point
MeerKAT detects the most distant hydroxyl megamaser ever observed—a record-bright natural space laser in a merging galaxy 8 billion light-years away, revealing how galaxies collided and evolved in the early universe.
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Science & Discovery
Beyond Pluto: What the Kuiper Belt Is Teaching Us About the Solar System's Deep Freeze
New Horizons' flyby of Arrokoth — a pristine contact binary 4.1 billion miles from the Sun — revealed a solar system relic frozen since the dawn of planetary formation. Now scientists want to go deeper, and the Kuiper Belt's secrets are proving stranger than anyone expected.
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Science & Discovery
Magnetars: The Universe's Most Magnetic Objects Are Also Among Its Rarest and Most Violent
With magnetic fields a quadrillion times stronger than Earth's, magnetars are neutron stars pushed to a physical extreme that bends spacetime, cracks their crusts, and briefly outshines entire galaxies — and astrophysicists are still working out how they form.
