All articles
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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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Military Space
China Is Filling Low Orbit With Derelict Rocket Bodies — and Three Have Already Exploded
A LeoLabs analysis finds China abandoned 51 spent rocket bodies above 650 km from 2021-2025 — 86% of the global total — and three have already fragmented, seeding debris clouds that will outlast everyone reading this.
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Astronomy
The Loudest Black-Hole Collision Yet Let Astronomers Touch the Event Horizon Itself
GW250114, the loudest black-hole merger ever recorded and ~3x louder than 2015's GW150914, carries the first gravitational-wave signature tied to a remnant's event horizon rather than its light ring — opening a channel to measure frame-dragging and horizon surface gravity.
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Stargazing
This Week's Sky: Mars Slides Into the Pleiades as the Strawberry Moon Rises
A dated late-June 2026 observing guide: Mars passes the Pleiades June 27-29 in the pre-dawn east, the Full Strawberry Moon rises June 29-30 near Sagittarius' Teapot, Mercury starts retrograde, and the Summer Triangle frames the season's best nebulae.
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Military Space
Space Force Hands Boeing $2 Billion to Extend the Military's 'Cellphone Network in Space'
The U.S. Space Force awarded Boeing up to $2 billion to build two new MUOS narrowband satellites, dethroning incumbent Lockheed Martin and keeping the military's UHF 'cellphone network in space' alive into the mid-2030s.
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NASA & Agencies
Spacewalk 95: Two NASA Astronauts Head Outside to Give Canadarm2 a New Wrist
On June 30, NASA astronauts Chris Williams and Jessica Meir will spend roughly six and a half hours outside the ISS replacing a malfunctioning wrist roll joint on the 25-year-old Canadarm2, the robotic arm that captures and berths visiting cargo ships.
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