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Astronomers have discovered the remains of one of the oldest planetary systems in our galaxy. Clues were provided by two white dwarfs, each 90 and 120 light years away from Earth. They are supposed to be over 10 billion years old. White dwarfs are the cores of extinct stars. These were not massive enough to explode in a supernova and become a black hole or neutron star. Instead, they have lost their outer shells and are now cooling. They have high density but low luminosity. 10.7 billion years oldResearchers* at…

They give the room a great scent and a pleasant mood. However, scented candles can release substances of concern. The cozy season has begun! That means out with the scented candles, in with the cozy blanket, and drinking lots and lots of tea. Scented candles and room fragrances exude lovely notes of vanilla, orange, or cinnamon throughout the room. Unfortunately, what is good for your well-being can harm your health. Researchers have found that candles release questionable substances and can thus lead to headaches, dizziness, and other complaints. Surprising warningsThere…

Will it be in Tokyo, Delhi, or Cairo? Will it be somewhere among the evergreen forests of Central Africa, or will it be in a U.S. state in the Midwest? Or even in Austria? Today, in any case, the birth of the eighth billionth earth citizen is expected: 8,000,000,000 people – thousand times as many as in Austria, will thus live on our fragile globe, according to the calculations of the United Nations. Fear of overpopulationIt is an unbelievable population development that has taken place in the last 200 years:…

According to a recent study, the Arctic is now similarly littered with plastic as densely populated regions. High concentrations of microplastics are found in the water, in rivers, on the seafloor, on uninhabited beaches, and even in ice and snow, report researchers at the Alfred Wegener Institute (AWI) in Bremerhaven. This has consequences for the living creatures there, but possibly also for the climate. The Arctic is perceived as a largely untouched wilderness – but that no longer corresponds to reality, says AWI biologist Melanie Bergmann, co-author of the analysis…

For the first time in three years, the Netherlands has celebrated the traditional arrival of St. Nicholas, which was previously canceled due to the Corona epidemic. According to broadcaster NOS, thousands of people turned out Saturday in Hellevoetsluis, near Rotterdam, for the welcoming ceremony for Sinterklaas, as the saint with the rakish white beard and red bishop’s coat is known in the Netherlands.From there, the arrival of St. Nicholas was televised this year and staged in numerous other cities. According to legend, Sinterklaas travels by steamship every November from Spain…