It is believed that the observable universe contains at least 100-200 billion galaxies. Moreover, the number of stars in the Milky Way alone, according to …

Science and education
It is believed that the observable universe contains at least 100-200 billion galaxies. Moreover, the number of stars in the Milky Way alone, according to …
Today, scientists (and along with you and me) know about the existence of more than 4300 exoplanets – worlds that revolve around alien stars. Is …