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The article about the discovery is published in the prestigious Science Magazine and the lead author is Trifon Trifonov of Max Planck Institute of Astronomy who is an alumni of Sofia St. Kliment Ohridski University, Faculty of Physics.
Astronomers have discovered a new exoplanet about 25 light-years away, and they say it should be the first target when the next-generation James Webb Space Telescope launches later this year (Science 2021, DOI: 10.1126/science.abd7645). Trifon Trifonov of the Max Planck Institute for Astronomy and colleagues found the exoplanet, Gliese 486 b, during a survey of about 350 red dwarf stars. They predict it is rocky, a little larger than Earth, and about as hot as Venus. Their observations also suggest that Gliese 486 b has a metal core, like Earth, but that it is tidally locked to its star, Gliese 486, similar to the way the moon is locked to Earth. It orbits Gliese 486 once every day and a half. Gliese 486 b is attractive for telescope observations; because it’s so close to Gliese 486, a bright star, it should offer astronomers good transit spectroscopy, which relies on the star’s light passing through the exoplanet’s atmosphere. Gliese 486 b is hot enough that scientists will also be able to do emission spectroscopy based on radiation from the exoplanet itself. Trifonov says that compared with other rocky exoplanets, Gliese 486 b appears to have the best characteristics for emission spectroscopy and the second-best for transit spectroscopy. But that all depends on Gliese 486 b’s having an atmosphere; Trifonov says his team’s models put the exoplanet on a knife’s edge, with enough gravity to retain an atmosphere but enough stellar radiation to blow it away.
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Scientists at the Japanese National Astronomical Observatory in collaboration with colleagues at the British Imperial College and with the help of several powerful telescopes have discovered the oldest galactic cluster, reports BTA.
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Over the next 24 hours, expect cloudy skies with rainfall across the eastern half of the country, where precipitation may be intense in some areas. Meanwhile, the western half will see clouds clearing during the day, becoming mostly sunny
Overnight, rainfall across the country will temporarily cease, with some areas experiencing breaks in the clouds
Overnight, the precipitation zone will gradually shift eastward, with significant amounts expected in parts of Central and Eastern Bulgaria, accompanied by thunderstorms
Romanian media outlets have reported that storm "Renata" has made landfall in Romania, bringing with it strong winds and heavy precipitation. Following two weeks of record high temperatures, the mercury has plummeted by 15-20 degrees Celsius, as reported
The concluded winter presented unusually elevated temperatures and a 'milder' heating season for thousands of Bulgarians
For the past four years, residents of the picturesque village of Brestovitsa in Plovdiv have been grappling with a troubling issue: muddy water contaminated with manganese flowing from their taps
UN Happiness Report: Bulgaria's Astonishing Leap in Rankings
Bulgaria: 3 Regions With Lowest Life Expectancy - EU Report 2022
