Classical Cepheids are the most important primary indicators for the extragalactic distance scale. Establishing the

Classical Cepheids are the most important primary indicators for the extragalactic distance scale. Establishing the

Nearly 30 years after ROSAT, the german-russian mission eROSITA, planned for launch in spring 2019,

It has been known for decades that the observed number of baryons in the local

Theoretical and observational studies of dust condensed in outflows from AGB stars have substantially advanced the understanding

Recently, enormous (> 200 kpc) Lyman-alpha nebulae (ELAN) have been discovered around radio-quiet z~2-3 quasars.

The Sun's atmosphere consists of the photosphere, chromosphere and corona. The solar chromosphere bridges the