Discovery of magnetic bright points in the quiet Sun
Most of the solar surface seems to be non-magnetic. However, it carries a magnetic flux and energy that easily exceed those of sunspots, plage and network all...
Discovery of pulsations in the nitrogen-rich PG1159 star PG 1144+005
Up to 98% of all single stars will eventually become white dwarfs - stars that link the history and future evolution of the Galaxy, and whose previous evolution...
Discovery of Stars Surrounded by Iron Dust in the Large Magellanic Cloud
Stars with masses between one and eight times the mass of the Sun evolve along the asymptotic giant branch (AGB) before ending their lives as white dwarfs. It...
Discovery of the highest-energy photons from a gamma-ray burst by the MAGIC telescopes
Gamma-ray bursts (GRBs) are brief and extremely powerful cosmic explosions. They are thought to result from the collapse of massive stars or the merging of...
Discovery of the polluting stars that form the second stellar generation in globular clusters
Historically, globular clusters (GCs) have been used as laboratories for studying stellar evolution, because it was thought that all the stars in a globular...
Dissecting the Spitzer color-magnitude diagrams of extreme LMC AGB stars.
For the first time we use self-consistent evolutionary models of low-and intermediate-mass stars (1-8 solar masses) coupled with theoretical dust formation...
Early-type galaxies (ETGs) were historically considered as ‘boring’ objects by astronomers. This galaxy category encompasses lenticular and elliptical galaxies...
Downflowing umbral flashes as evidence of standing waves in sunspot umbrae
Umbral flashes are sudden brightenings commonly visible in the core of some chromospheric lines. Theoretical and numerical modeling suggests that they are...
Dual dust chemistry around evolved stars of the Large Magellanic Cloud
During the final stages of their lives, stars with masses between one and eight times the mass of the Sun evolve along the asymptotic giant branch (AGB). AGB...