All articles
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Stargazing
This Week's Dawn Sky: The Crescent Moon Walks From Mars to Jupiter as a CME Nudges the Aurora
Four mornings, Sept. 6-9: a thinning crescent Moon slides past Mars in Gemini, then Jupiter in Cancer, while a C9-flare CME due Sept. 8 puts a "maybe" on high-latitude aurora ahead of the Sept. 11 new Moon.
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Commercial
Falcon 9's Starlink Era in Florida Is Over. Vandenberg Just Became the Workhorse.
SpaceX's 80th Starlink mission of 2026 flies from California, not Florida, because Falcon 9's Cape Starlink run ended Aug. 25 after roughly 260 flights. Starship is supposed to pick up the slack before year-end, and the FAA has already cleared 44 launches a year at LC-39A.
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Science & Discovery
Peptides Don't Just Survive Venus's Acid Clouds. They Fold.
MIT chemists soaked three short peptides in 98% sulfuric acid, the stuff of Venus's upper clouds, and found they held together for weeks and folded into the same defined loop, with the acid itself acting as scaffold.
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Military Space
After Burning $6.27 Billion on OCX, the Space Force Starts Over on GPS Ground Control
Five months after killing the $6.27 billion OCX program, the Space Force is starting work on a new GPS ground-control architecture while a Lockheed Martin stopgap keeps the constellation flying.
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Astronomy
The Universe Still Has the Gas. So Why Did It Stop Making Stars?
FAST stacked 21-cm signals from 2.5 million DESI galaxies and found the universe's atomic hydrogen barely budged while star formation fell by more than half. The fuel is there; galaxies just stopped burning it.
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Commercial
NASA Hands Blue Origin $700 Million to Build a Mars Communications Orbiter
NASA picked Blue Origin over a competing Rocket Lab bid for a ~$700 million contract to build a Blue Ring-based Mars telecom orbiter due at the Red Planet by 2030.
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Missions
ISRO's GSLV-F17 Lofts EOS-05, Ending an Eight-Month Launch Drought
ISRO's GSLV-F17 successfully placed the EOS-05 Earth observation satellite into orbit, marking the agency's first launch since January and restarting its 2026 cadence.
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Stargazing
A Minor Radiation Storm and an Inbound CME Set Up a Weekend Aurora Watch
NOAA logged repeated S1-minor proton storm alerts on September 5 as a coronal mass ejection from sunspot AR4524 heads for Earth, with arrival expected September 8 and a shot at G1-level auroras.
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Astronomy
Hubble Finds a New Decagon Guarding Saturn's South Pole
Hubble archival data reveal a strengthening 10-sided vortex ringing Saturn's south pole — a feature Cassini never saw in 13 years at the planet, and a strange new sibling to its famous northern hexagon.
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Science & Discovery
Is Our Galaxy's Black Hole Flinging Particles to PeV Energies? A New Study Says Maybe
A new theoretical model suggests Sagittarius A* accelerates neutrons to PeV energies via the magnetic Penrose process, while a companion UCLA astrometry paper pins down the black hole's motion and rules out a hidden intermediate-mass companion.
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Astronomy
Hubble Spots a 210-Light-Year Superbubble Carved Into a Star Nursery in the Large Magellanic Cloud
A new Hubble image reveals a 210-by-140-light-year cavity blown into the N44 nebula by massive stars, with nearly 30,000 still-forming stars catalogued in the surrounding shell.
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Commercial
Isar Aerospace's Spectrum Becomes First Rocket to Reach Orbit From Western European Soil
Germany's Isar Aerospace flew its Spectrum rocket to orbit from Norway's Andøya Spaceport on September 5, the first orbital launch ever from mainland Western Europe, 18 months after its debut ended in a pad-side crash.
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