UV Diagnosis: AGNs or Star-Forming Galaxies?
Active galactic nuclei (AGN) and star-formation processes ionize gases around galaxies and the Universe. How can we separate the two to pin down the dominant ionizing sources in the early Universe?
Studying the pulse of a galaxy: model and observations
Today we review a study searching for a way to measure the ages of stars in a galaxy. The quantity of long period variable stars gives information about the life cycle of a galaxy, and the authors explain that with their new technique it is possible to take the “pulse” of a galaxy.
Partly Cloudy With a Chance of Messing Everything Up
Have we been misinterpreting our observations of exoplanet atmospheres? Find out why exoplanet scientists fear the wrath of clouds.
Chury – a rubber duck with animal like characteristics
More than a year ago, scientists managed to land on a comet for the very first time in human history. Read on to get a compact overview of some of the most important results of the mission obtained so far.
Sustainable Climates on Greenhouse Super-Earths?
Can life on exo-worlds build its own habitable environment in extremely unfavourable conditions?
We’ll be counting galaxies…
Counting the number of galaxies at a given mass in a region of space gives you the number density – something that can be really easily compared to simulations. But do our observations and theory match up? And how does looking out to higher and higher redshifts help us to better understand our Universe…