A 50-million-solar-mass black hole in a galaxy 700 million years after the Big Bang weighs more than the galaxy that surrounds it, supporting the idea that the universe started making giant black holes earlier than the standard story allows.
A static fire test on Thursday night ended in a fireball at Launch Complex 36, destroying the NG-4 vehicle, damaging ground infrastructure, and pulling the second-largest US rocket out of service for an unknown stretch.
Zhang Lu, Wu Fei and Zhang Hongzhang touched down in Inner Mongolia Friday after the longest Chinese crewed mission yet, ending a stay that was extended when a debris-cracked window forced an unprecedented spacecraft swap last fall.
Sergey Kud-Sverchkov and Sergei Mikaev installed a solar radiation sensor on Zvezda and retrieved two long-running Russian experiments during the 279th station-supporting EVA.
At a press conference in Washington, NASA named the contractors, rovers, and hopping drones that will go to the lunar south pole between now and 2029. It is the first hard schedule of dollars and hardware behind Administrator Jared Isaacman's March pledge to build a permanent base.
TESS caught a rare triple star system in which a swollen red giant and a pair of sun-like stars orbit on almost exactly the same plane, blocking each other in turn from our viewpoint. The geometry is so well aligned that the masses, sizes, and temperatures of all three stars can be read straight off the light curve.
LIGO, Virgo, and KAGRA's fourth catalog shows a clean gap in black-hole masses starting near 44 solar masses, exactly where stellar theory says collapsing stars should fail to leave a remnant. Anything heavier had to be built from smaller mergers.
On May 29, 1919, two British expeditions photographed stars near the eclipsed sun and measured a number that Newton could not produce. The light bent by 1.75 arcseconds, general relativity passed its first real test, and a Swiss patent clerk became a household name overnight.
A Warwick-led team built an automated vetter called RAVEN, ran it across hundreds of thousands of TESS light curves, and confirmed 118 new worlds. Among them is the first direct measurement of just how empty the Neptunian desert really is.
Curious people who find space fascinating but do not have aerospace engineering degrees. The reader who wants to understand why a Starship test flight matters, what Europa Clipper is actually looking for, or why fast radio bursts are so strange. Sagan-era wonder applied to the news cycle.
Every article is both. We never simplify to the point of being wrong, and we never leave jargon unexplained. If we use a technical term, we explain it. If we cannot explain something clearly, we say so. Space is genuinely complicated. The goal is to honor that complexity while making it readable.
The same posture Carl Sagan modeled: genuinely curious, rigorous, and skeptical without being dismissive. We cover congressional hearings, Pentagon disclosures, and scientific efforts to study the question seriously. We do not publish conspiracy content or treat extraordinary claims as credible without extraordinary evidence. The UAP question is interesting precisely because it is being taken seriously by credible institutions. We cover that seriously.
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