Latest Henrietta Swan Leavitt Stories
By discovering the first double star where a pulsating Cepheid variable and another star pass in front of one another, an international team of astronomers has solved a decades-old mystery.
New, very precise measurements have shown that the rotation of the Milky Way is simpler than previously thought.
Taking advantage of the presence of light echoes, a team of astronomers have used an ESO telescope to measure, at the 1% precision level, the distance of a Cepheid - a class of variable stars that constitutes one of the first steps in the cosmic distance.
- A transitional zone between two communities containing the characteristic species of each.