Red Dead Evolution
Most galaxies take significant fractions of the age of the universe to noticeably change. Others transform themselves in the first two billion years of the universe. How does this happen?
Spot the Difference! Disentangling High-z Galaxies
The early universe is a period of intense star formation across nearly all galaxies. Is it possible tell these galaxies apart from each other, when the universe was less than a few billion years old?
Cepheid yourself – confirming tensions in the Hubble expansion
New observations of pulsing variable stars weigh in on the Hubble tension. Find out how in this Astrobite!
A history of water loss in the TRAPPIST-1 exoplanets
TRAPPIST-1 promises to be one of the best candidates for habitability in the solar neighborhood. Today we will see that the presence of a system-wide cloud of hydrogen could be traced to a history of water loss in the planets in this system.
A Tale Etched in Time
There she blows! A detective case tracking the motion of material ejected from a star to figure out when the star exploded.
The Evolution of the Bar Fraction
Astronomers have long wished to probe the number of galaxies containing bar structures to ever increasing redshifts. This paper discusses the first results from the Galaxy Zoo Hubble classifications of galaxies out to redshifts of z = 1, in order to study how the fraction of galaxies containing a bar has changed over a cosmic time that has previously not been explored.