Streamlining the situation

Sometimes, the most complex problems can be solved with the simplest approaches. Such was the case for researchers as they tried to resolve a longstanding issue of fluid friction — the resistance between an object moving through fluid, or conversely, …

Hubble directly measures mass of a lone white dwarf

Astronomers have directly measured the mass of a single, isolated white dwarf — the surviving core of a burned-out, Sun-like star. Researchers found that the white dwarf is 56 percent the mass of our Sun. This agrees with earlier theoretical predictio…