Neliota looks at flashes on the Moon

Using a system developed under an ESA contract, the Greek NELIOTA project has begun to detect flashes of light caused by small pieces of rock striking the Moon’s surface. NELIOTA is the first system that…

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Saturn from above (or below, if you insist)

These natural color views (and corresponding animated movie sequences) from NASA’s Cassini spacecraft compare the appearance of Saturn’s north-polar region in June 2013 and April 2017. In both views, Saturn’s polar hexagon dominates the scene….


The donut planet

Scientists suggest in a new study the existence of a planetary object called a “synestia,” a huge, spinning, donut-shaped mass of hot, vaporized rock, formed as planet-sized objects smash into each other. At one point…


Saddling up for a different universe

Researchers have shown how singularities – which are normally only found at the centre of black holes and hidden from view – could exist in highly curved three-dimensional space. The researchers, from the University of…


Trappist-1h up close(r)

Scientists using NASA’s Kepler Space Telescope identified a regular pattern in the orbits of the planets in the TRAPPIST-1 system that confirmed suspected details about the orbit of its outermost and least understood planet, TRAPPIST-1h….


When it rained on Mars

At one stage in its history rain storms on Mars were so heavy – and the raindrops so large – that they changed the planet’s surface, carving valleys and altering the shape of meteorite impact…


Everybody watch Tabby(‘s star)

It was early Thursday morning when astronomer Matt Muterspaugh noticed something strange with the star he had been observing for the last year and a half. Telescope data taken from the night before showed that…