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The most consequential part of the new UAP disclosure debate may not be a video. It may be a sentence in a memo: current and former government personnel are being…
When the Moon’s shadow crosses the Earth on August 12, the darkness will last only a few minutes in any one place. NASA is planning to use those minutes as…
A black hole’s event horizon is invisible. Light that crosses it cannot return to a telescope, so astronomers do not photograph the black hole itself in the usual sense. They…
The Sun appears hottest at its bright surface, but the outer atmosphere above it is far hotter. The photosphere, the layer we see as the Sun’s surface, is about 5,500…
Andromeda is often described as the Milky Way’s larger neighbour and future collision partner. A new study using NASA’s Hubble Space Telescope adds another part to that story: the galaxy…
Black holes are difficult to find when they are quiet. The one in NASA’s latest Swift result gave itself away by destroying a star. The flare came from the outskirts…
Pluto’s famous heart is not a smooth, frozen decoration. A new analysis of images from NASA’s New Horizons flyby suggests that liquid nitrogen may occasionally rise through cracks in the…
Moon dust is not just a dirtier version of sand. It is made of sharp, broken grains created by billions of years of impacts, with no wind or water to…
The Perseid meteor shower reaches its 2026 peak on the night of August 12 and into the morning of August 13. This year the timing is especially friendly to observers…
From the rim of Jezero Crater, Earth is only a bright point in the sky. On July 2, NASA’s Perseverance rover watched that point vanish behind Phobos, Mars’ larger moon,…
Moon dust looks soft in photographs, but it is a difficult material for machines and people. The grains are sharp, abrasive and electrically clingy. NASA engineers at Johnson Space Center…
NASA is testing the communications and radar hardware for a proposed Mars aircraft mission called SkyFall. The project is still on Earth, but its engineers are working through the details…
Earth’s poles are constantly shedding heat into space, but much of that energy is invisible to human eyes. NASA’s twin PREFIRE CubeSats are measuring that far-infrared loss directly, and the…
Neanderthals and modern humans did not simply occupy the same landscape and disappear from one another’s story. A study of Üçağızlı II Cave in southern Türkiye points to a longer…
Empty space is not completely empty in the equations of quantum physics. Under an ordinary magnetic field, that distinction is impossible to notice. Near a magnetar—a neutron star with a…
Forecasting a solar storm is a little like watching a wave leave a distant coast and trying to guess when it will reach the beach. Scientists can see a coronal…
Archaeologists have returned to a rare Iron Age fort in Shropshire that sits in a wetland landscape rather than on a hill. The University of Birmingham has begun a new,…
Radiocarbon dating is one of archaeology’s most useful tools, but it is often described as if a laboratory can place an exact year on any ancient object. The method is…
Stars do not actually switch their lights on and off when they twinkle. The flicker happens between the star and your eyes, as its light passes through Earth’s moving atmosphere.…
The Oort Cloud is one of the strangest places in the Solar System because it has never been seen directly. Astronomers infer its existence from the paths of long-period comets:…
At Kurd Qaburstan in northern Mesopotamia, archaeologists are finding the kind of evidence that allows a destroyed city to be read from several directions at once. Cuneiform tablets, administrative sealings,…
Two different kinds of Neolithic tomb have been identified beside one another near Maree in County Galway. One is a court tomb, a long stone-built monument with an open space…
Near Chelmsford, archaeologists have been studying a large Iron Age cemetery that spans the years before and after the Roman conquest of Britain. The site contains more than 100 cremated…
KONA BLUE sounds like the name of a completed retrieval operation. AARO’s own record is narrower: it describes a proposed sensitive program that was never approved or formally established. The…