Detailed studies of nearby Local Group galaxies offer an unique window to understanding galaxy formation and evolution. The analysis of Colour-Magnitude Diagrams reaching the oldest main sequence turnoffs to determine their star formation histories ('CMD fitting') has revolutionised our understanding on how these galaxies work. In particular, the

We present time-resolved 10.4 m Gran Telescopio Canarias and 4.2 m William Herschel Telescope intermediate resolution spectroscopy of the X-ray transient MAXI J1820+070 (=ASASSN-18ey) obtained during its decline to the quiescent state. Cross-correlation of the 21 individual spectra against late-type templates reveals a sinusoidal velocity

Continuing the EURONEAR data-mining projects, we developed the VIMP tool to search for Virtual Impactor asteroids (VIs) using our Mega-Precovery archival image collection. VIMP identifies candidate images probably holding VIs which are prioritised and scrutinised by human reducers. First, we applied VIMP to the Blanco-DECam archive (about 300,000

We outline a number of science advantages for adding a K or Ks filter (lambda_c 2.15 microns) and propose to extend the wavelength coverage for WFIRST into the K-band, where the gains of going to space are much more pronounced than at shorter wavelengths.

The "European CMB Coordinator" group has a roadmap consisting of three axes: One is to build and deploy a 5m reflecting telescope at the South Pole; a second is to build and deploy 0.5m refracting telescopes in the Atacama Desert in Chile; and a third is to deploy low-frequency telescopes aimed at characterizing the sky in the 5-40 GHz range.

The OSIRIS-REx asteroid sample-return mission is currently orbiting primitive near-Earth asteroid (101955) Bennu. Thousands of images are being acquired by the MapCam instrument onboard the spacecraft. In this work, we present preliminary results of a spectral clustering analysis applied to these color images.