ESO

The Orion Nebula

An article published in the journal “Astronomy & Astrophysics” describes a new study of the Orion Nebula. A combination of observations made with the ALMA radio telescope, the 30-meter IRAM telescope and the HAWK-I instrument installed on ESO’s VLT allowed the creation of a unique image of the Orion Nebula. It’s an area of ​​space in which there are various molecular clouds where gas concentrations give life to new stars in processes that can be best studied by putting together the data collected at different electromagnetic frequencies.

The star Pi1 Gruis seen by PIONIER (Image ESO)

An article published in the journal “Nature” describes the first direct observation of granulation on the surface of a star outside the solar system. An international team of Astronomers led by ESO’s Clauda Paladini used the PIONIER instrument installed on ESO’s VLT (Very Large Telescope) to conduct that observation on the star Pi1 Gruis. It was possible to observe its granules, convective cells each about 120 million kilometers across, because the dust that usually hinders these studies was far from the star.

Hubble Ultra Deep Field galaxies seen by MUSE (Image ESO/MUSE HUDF collaboration)

A series of 10 articles to be published in the journal “Astronomy & Astrophysics” describes various aspects of the deepest spectroscopic investigation ever carried out with the MUSE instrument installed on ESO’s Very Large Telescope (VLT) in Chile. An international team with many researchers focused on the Hubble Space Telescope’s Ultra Deep Field (HUDF) to measure distances and properties of 1,600 very dim galaxies, of which 72 were never detected before.

Artist's impression of interstellar asteroid 'Oumuamua (Image ESO/M. Kornmesser)

An article published in the journal “Nature” describes the observations carried out on ‘Oumuamua, the named given to the interstellar asteroid whose discovery was announced only a few weeks ago. It was designated as A/2017 U1 but after the creation of a new class of objects for interstellar asteroids its designation was modified into 1I/2017 U1. Observations with ESO’s VLT (Very Large Telescope) and other telescopes showed that it’s likely dense, rocky, reddish and with a very elongated shape.

Artist's impressione of the exoplanet Ross 128 b and its star (Image ESO/M. Kornmesser)

An article published in the journal “Astronomy & Astrophysics” describes the discovery of the exoplanet Ross 128 b, which might be similar to Earth with a mass of at least 35% higher than the Earth’s. A team of researchers used the HARPS instrument at the Silla Observatory in Chile to discover this planet about 11 light years from Earth. Its orbit might be in ​its system’s habitable zone making it the second exoplanet closest to the solar system with those characteristics after Proxima b.