Planetologists concluded that the subglacial lakes of liquid water under the south pole of Mars discovered several years ago may in fact be hydrated and cold deposits rich in clay, in particular smectite. Reanalysis of Mars Express radar data and laboratory experiments helped to establish this.
Mathematician Daniel Mansfield of the University of New South Wales (UNSW, Australia) reexamined cuneiform clay tablets discovered more than a century ago and found the oldest example of applied geometry on one of them.
American archaeologists carried out radiocarbon dating of 26 human bones and teeth recovered from cave burials at Machu Picchu. The study showed that the ancient city of the Incas remained inhabited until 1530, and the first inhabitants were here no later than 1420, which is almost 20 years earlier than the previous estimate.
Astronomers unexpectedly discovered two unusual objects in the main asteroid belt, located between the orbits of Jupiter and Mars. What surprised scientists was the red color of these asteroids. They shouldn’t be there, that’s why scientists became interested in them.
Underwater archaeologists have discovered wicker baskets containing oil palm fruits and grape seeds at the site of the sunken ancient Egyptian port of Heracleion. Apparently, these items were used as grave goods, which allowed them to survive to this day from the 4th century BC.
Scientists have discovered in the Spanish cave of Ardales drawings left by Neanderthals between 45 and 65 thousand years ago. Chemical analysis showed that the cave art in Spain was of man-made origin, and archaic people brought ocher from outside the monument. Apparently, karst formations played a symbolic role among some groups of Neanderthals.
Astronomers using the SRT ground-based radio telescope have built the most detailed radio map of the Andromeda Galaxy. It made it possible to better study the structure of the galaxy and its properties, as well as to compile a catalog of background sources.
Scientists from the Institute of Astronomy at the University of Hawaii in the United States have discovered an exoplanet at a distance of only 35 light-years – this is the closest exoplanet to Earth ever found and described. It was named COCONUTS-2b.