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Astronomy
Action! Rubin Observatory Officially Starts Its 10-Year LSST Survey
On June 30, 2026, the NSF-DOE Vera C. Rubin Observatory formally began the Legacy Survey of Space and Time, a decade-long nightly scan of the southern sky with the world's largest digital camera.
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Stargazing
July 4's Sky Show: Mars and Uranus Stage Their Closest Meeting Until 2053
Before dawn on July 4, 2026, Mars and Uranus pass just ~0.1 degree apart - their tightest pairing until 2053 and a rare chance to bag faint Uranus using bright Mars as a guide.
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Commercial
Rocket Lab Buys Iridium for $8 Billion, Trading Rockets for a Working Satellite Network
Rocket Lab will acquire satellite operator Iridium in a cash-and-stock deal valuing it near $8 billion, buying 66 working satellites, rare L-band spectrum, and instant recurring revenue instead of building it all itself.
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Missions
A Planet TESS Was Never Built to See: First Microlensing World Pulled From the Archive
NASA's TESS, designed to catch transit dips, has for the first time bagged a planet through gravitational microlensing — a distant super-Jupiter, Gaia23bra b, teased out of archived data after ESA's Gaia flagged the event in 2023.
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Science & Discovery
Webb Reads the Atmosphere of a Giant Planet That Outlived Its Star
Webb has detected the first atmosphere ever seen on a planet transiting a white dwarf: WD 1856 b, a 4-to-11-Jupiter-mass giant that survived its star's death and now circles the stellar corpse every 34 hours, carrying clouds and probable methane.
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Astronomy
X-ray Echoes of Dead Stars Nudge the Milky Way's Outer Arms Farther Out
Using dust-scattered X-ray light echoes from three gamma-ray bursts, astronomers re-measured two of the Milky Way's outer spiral arms and found them up to 10% farther from the galactic center than assumed.
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Stargazing
Aurora Alert: An X1.1 Flare and Back-to-Back CMEs Open a June 30-July 1 Storm Window
NOAA flagged G1-G2 storm conditions for June 30 into July 1 as a June 26 CME arrived and a slower June 27 CME chased behind, while AR4479 fired an X1.1 flare at 20:50 UTC - putting aurora within reach of northern-tier U.S. skies.
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Astronomy
A Super-Earth on the Cosmic Shoreline: UC Irvine Sharpens Up GJ 3378 b, 25 Light-Years Away
UC Irvine astronomers revised the mass and orbit of GJ 3378 b, placing the twice-Earth-size world firmly in its red dwarf's habitable zone just 25 light-years away — and on the shortlist for NASA's Habitable Worlds Observatory.
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Astronomy
Australia's MWA Bags Its First Millisecond Pulsar — and It's in an 833-Day Orbit
The Murchison Widefield Array found PSR J0125-5854, a 24-millisecond pulsar in a wide, near-circular 833-day binary — the MWA's first MSP and the first pulsar from the SMART survey's deep-pass search.
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Commercial
NASA Buys Four More Moon Landings: Astrobotic, Firefly and Intuitive Machines Split ~$590M in CLPS Orders
NASA awarded four CLPS task orders worth roughly $590M to Astrobotic, Firefly and Intuitive Machines to land four robotic missions on the Moon in late 2028, each carrying three payloads including the SCALPSS plume-imaging cameras.
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Missions
New Horizons Feels the Drag: Interstellar Atoms Are Braking the Solar Wind at 58 AU
SwRI's Heather Elliott and the New Horizons SWAP team report the solar wind at 58 AU is now 13-15% slower than at Earth, as interstellar atoms mass-load and brake it near the heliosphere's edge.
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Science & Discovery
The Radio Sky Is Brighter Than We Thought: A New SKA-Low Measurement Rewrites the Low-Frequency Map
A single SKALA4.1 antenna on an SKA-Low ground mesh in Western Australia measured the absolute brightness of the 60–350 MHz sky, and found the standard Global Sky Model runs 1.2 to 1.5 times too dim, deepening the puzzle of the excess radio background.
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