Postdoctoral researcher, Institut für Astrophysik Göttingen.
16 If we count Avogadro's Number of stars that are closest to Earth, how big that space would be? sep 10 '14
12 Why aren't there galaxy-sized balls of iron out there? aug 19 '14
8 What is the exact mass of the Sun? dec 20 '14
7 Why do stars become red giants? sep 15
6 How do star densities work? 1d ago