What is a little bigger than our moon but almost 1.4 times more massive than our sun? ZTF J1901 + 1458, one of the smallest white dwarf stars ever seen by astronomers. The dying shell of a sun-like star was detected relatively close, just 133 light-years away, by a series of ground-based and space-based telescopes. In a …
Former US Defense Secretary Donald Rumsfeld has died at 88 years of age. He was one of former President George W. Bush’s most trusted men and played a very relevant role in the invasion, first of Afghanistan and then in Iraq , wars that have lasted more than a decade. That of the Asian country still lasts. “It is …