Two seemingly unremarkable blue stars hide an intriguing mystery. Extensive nebulae have been discovered in their vicinity, even though the stars themselves do not appear
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The traditional Researchers’ Night program—renamed Science Night starting this year—took place at the Ondřejov Observatory and at the Prague facility’s Galaxy Division on Friday, September
For the seventh year in a row, the Ondřejov Observatory is hosting the international Workshop on Observational Techniques. This year, 21 students are participating; over
Astronomers have discovered hot water vapor for the first time in the vicinity of a hot B[e]-type giant star. The discovery shows that the environment
Objects straddling the boundary between planets and stars offer new insights into how massive bodies can end up in very short orbits. In a study