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Why were two Viking boat graves buried one inside the other? At Vinjeøra, a woman’s ninth-century boat was placed inside an older man’s burial, raising questions about family, memory and land.
How did ancient observers know Earth was round? Greek, Indian and Islamic scholars used eclipses, shadows and the changing sky to test Earth’s shape long before Columbus.
Did Viking burial clothes carry Arabic script? The Birka textile claim was disputed, while a separate ring and silver trade provide firmer evidence of Norse–Islamic contact.
Could henbane explain Viking berserker trance? A Fyrkat burial and toxicology offer clues, but the evidence stops short of proving a battle drug.
Why did the “Siberian unicorn” disappear? New dating places this giant Ice Age rhino alongside humans, while its specialised steppe diet offers a stronger clue than the myth.
Who invented zero? The answer is a long history of place-value marks, Brahmagupta’s arithmetic and evidence from the Bakhshālī manuscript—not one sudden invention.
Hilda’s reconstructed face is based on a skull held by the University of Edinburgh. The method can estimate some proportions, but the image cannot prove a unique appearance or a druidic identity.
A small sandstone object found at Humayma in southern Jordan may be one of the earliest physical chess pieces, but its identification as a rook remains provisional.
Meteorites are more than rocks from space. Their minerals, isotopes and tiny chondrules preserve a record of how the young Solar System took shape—and what they cannot tell us.
A UAP report becomes more useful when it preserves raw data, records the sensor conditions and lets independent analysts test ordinary explanations.
Bathymetry, sediments and preserved artefacts can reveal drowned landscapes, but a seafloor shape becomes archaeology only when several lines of evidence agree.
Some galaxies stop forming stars when hot gas, black-hole energy and depleted fuel change the balance that lets new suns appear.
Ancient DNA can reveal relationships and movements between populations, but it cannot by itself name a culture or explain why people moved.
Astronomers identified 118 expanding hydrogen superbubbles across Andromeda and found that clustered supernovae can supply enough energy to sustain the galaxy’s observed turbulence.
Archaeologists dated a ditch-and-rampart system at Oued Beht in Morocco to 3,500–4,000 years ago. Here is what it reveals about a changing North African settlement.
A Mars Express view of Thyles Rupes near the south pole reveals kilometre-high cliffs, frozen dunes and a landscape shaped by cooling, dust and frost. Mars is usually pictured in…
A 222-metre crater formed on the Moon in 2024 but was found only after a routine comparison of Lunar Reconnaissance Orbiter images. Here is what the fresh impact reveals about the lunar surface.
A habitable world is not the same as a living world. Here is how scientists define biosignatures, test false positives and build a case for life beyond Earth.
Radio telescopes measure radio waves, combine signals and reconstruct images of hidden cosmic structures.
Ancient flood stories are not geological reports. Sediment layers, settlement dates and the Black Sea debate show how researchers test whether memory and geology could meet.
Astronomers confirmed Elias 2-24 b, a Jupiter-mass world less than a million years old still growing inside its star’s birth disk. Here is how they found it.
A new Nature Astronomy study finds that black holes of very different sizes may launch jets at the same low accretion threshold. Tidal disruption events let astronomers watch the transition in real time.
A lost city is rarely identified by one spectacular object. Learn how archaeologists combine inscriptions, architecture, stratigraphy and landscape evidence to test the case.
Tutankhamun’s tomb has always looked strangely small for a royal burial. That oddity helped create one of archaeology’s most persistent questions: does the known tomb, KV62, stop where its walls…