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...
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NewsDiscovery of the highest-energy photons from a gamma-ray burst by the MAGIC telescopes
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NewsDiscovery 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...
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NewsDissecting 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...
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NewsDo we need a galactic disc to form stars?
Early-type galaxies (ETGs) were historically considered as ‘boring’ objects by astronomers. This galaxy category encompasses lenticular and elliptical galaxies...
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NewsDownflowing 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...
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NewsDual 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...
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NewsDust in the central parsecs of unobscured AGN provides more challenges to the torus
The black holes at the centres of galaxies are the most mysterious objects in the Universe, not only because of the huge quantities of material within them...
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NewsEarly evolution of disrupted asteroid P/2016 G1 (PANSTARRS)
We present deep imaging observations of activated asteroid P/2016 G1 (PANSTARRS) using the 10.4m Gran Telescopio Canarias ( GTC) from 2016 late April to early...
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NewsEarth’s albedo variations 1998-2014 as measured from ground-based earthshine observations
The Earth’s albedo is a fundamental climate parameter for understanding the radiation budget of the atmosphere. It has been traditionally measured from space...