All articles
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NASA & Agencies
Asteroid Day 2026: As Hera Closes In on Dimorphos, Planetary Defense Gets Its Moment
On June 30, 2026, the UN-sanctioned Asteroid Day arrives at a hinge point: DART proved we can nudge an asteroid, and ESA's Hera spacecraft is due at Didymos-Dimorphos by year's end to inspect the wreckage.
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Science & Discovery
Could Giant Alien Mirrors Betray ET? A New Study Tests Whether Orbiting Megastructures Would Survive
A new study models whether huge, feather-light orbital mirrors could survive around exoplanets — and finds that radiation pressure dooms most configurations, making any long-lived mirror a sign of active engineering.
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Stargazing
The Blaze Star on the Brink: Why Sky-Watchers Are Still Waiting for T Coronae Borealis to Erupt
A recurrent nova 3,000 light-years away should brighten to naked-eye visibility any night now — but T Coronae Borealis blew past its statistically favored June 25 date and still sits at baseline. Here's why the watch continues.
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Stargazing
A Skyscraper-Sized 'Peanut' Buzzes Earth: Tracking Asteroid 1997 NC1's June 27 Flyby
Potentially hazardous asteroid (152637) 1997 NC1 — a slowly spinning, peanut-shaped ~1-km body — passed safely within 6.7 lunar distances on June 27, 2026, doubling as a backyard-telescope target and a planetary-defense radar opportunity.
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Missions
NASA Just Tested a 'Gas-Pump Nozzle' for Orbit — and It Could Be the Key to Mars
NASA's Marshall Space Flight Center and L3Harris have operationally tested a developmental cryocoupler — a quick-disconnect nozzle for transferring ultra-cold propellant between spacecraft and future orbital depots, a capability never demonstrated in orbit.
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Astronomy
A Razor-Thin Thread Across the Veil: Amateurs Spot a 1,200-AU H-alpha Mystery in the Cygnus Loop
Backyard astronomers and professionals teamed up to find a needle-thin, H-alpha-only filament streaking the Veil Nebula — just 1.63 arcseconds wide, roughly 1,200 AU, and likely a non-radiative shock front.
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Military Space
Tactical Radio From Orbit: York's 'Dragoon' Proves LEO Can Do GEO's Job
York Space Systems' Dragoon satellite ran five successful two-way UHF tactical-comms demos from low Earth orbit, and coverage indicates the SDA is trimming its satellite buy — reportedly canceling 11 — on the strength of the result.
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Missions
Two Astronauts, One Stubborn Wrist: NASA's June 30 Spacewalk to Fix Canadarm2
On June 30, NASA's Chris Williams and Jessica Meir will step outside the ISS to swap a failed 91-kilogram wrist joint on Canadarm2, the robotic arm that drew elevated motor current and stopped responding on May 27.
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Astronomy
Hubble's 'Chandelier Cluster' Reveals Its Ancient Stars Formed in Two Separate Bursts
Hubble's June 2026 image of NGC 6723, the 'Chandelier Cluster,' shows its 10-billion-year-old stars formed in two closely spaced bursts — the second within 634 million years of the first — undercutting the old idea that globular clusters are single-age populations.
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Stargazing
A June 26 CME Is Inbound: NOAA Posts a Storm Watch and the Aurora Could Reach the Northern U.S.
A coronal mass ejection that left the Sun on June 26 is forecast to reach Earth around June 30, and NOAA has issued a geomagnetic storm watch — with aurora possibly visible as far south as Seattle and Minneapolis.
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Science & Discovery
Marsquakes Reveal a Hidden Magma Engine Beneath the Red Planet's Crust
Seismic data from NASA's InSight lander points to vast, Earth-like magma systems deep inside Mars — built without plate tectonics, and possibly still fed by active mantle plumes.
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NASA & Agencies
NASA and the SBA Sign a Deal to Funnel Small Businesses Into the Space Economy
NASA and the Small Business Administration signed a memorandum of agreement on June 29, 2026, launching an interagency initiative to grow the American space economy under President Trump's National Space Policy.
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