The Hubble Space Telescope was born from a previous decadal survey. What leaps forward will come from this one?
The astronomy and astrophysics decadal survey for the 2020s lays out plans to search for life on distant planets, understand the formation of galaxies and solve deep mysteries of physics.
Anyone with an internet connection can search the universe and possibly discover never-before-seen galaxies.
ESO/WFI (Optical); MPIfR/ESO/APEX/A.Weiss et al. (Submillimetre); NASA/CXC/CfA/R.Kraft et al. (X-ray)
Despite the name, some black holes effectively “shine” as they suck up nearby material with such force that it begins to glow. New research reveals a new method for detecting these active black holes.
Plus, the tactics the food industry is using to boost sales of ultra-processed foods in middle-income countries. Listen to The Conversation Weekly.
More than 60 images capturing huge expanses of sky are sent to us from Chile. Within them we can see thousands of bright spots. What do we find when we look closer?
A galaxy 320 million light-years away has a surprisingly similar structure to the Milky Way, suggesting our galaxy isn’t as unique as it once seemed to astronomers.
An image taken by the Hubble telescope of NGC 4639, a barred spiral galaxy in the constellation of Virgo.
The first ever Canadian-led large project on one of the world’s leading telescopes will investigate how the birth and death of galaxies are affected by their environment.
The warped spiral galaxy ESO 510-G13 seen edge-on.
The Milky Way’s disc of stars becomes increasingly warped and twisted the further away they are from the galaxy’s centre.
An artist’s impression of the predicted merger between our Milky Way (right) and the neighboring Andromeda galaxy (left). So which galaxy will dominate?
NASA; ESA; Z. Levay and R. van der Marel, STScI; T. Hallas; and A. Mellinger
Bigger galaxies tend to dominate the smaller, when the two collide. But the pending battle between our Milky Way and the Andromeda galaxy might be a much fairer fight than we previously thought.
So many galaxies viewed by the Hubble Space Telescope: but what’s their real shape in 3D?
NASA, ESA, and J. Lotz and the HFF Team (STScI)
The first reliable measure of the 3D shape of galaxies and their rotation helps to shed light on their history.
Artist’s impression of ZF-COSMOS-20115, a galaxy that stopped making new stars and rapidly turned into a compact red galaxy.
The recipe book for galaxy formation may need to be rewritten after the discovery of a massive galaxy that stopped making new stars early in the Universe’s history.
Untangling the history of the Milky Way.
Understanding how the billions of stars in our galaxy formed and evolved is the subject of a huge galactic archaeology project.
Mysterious Milky Way.
A new discovery can help determine where all the stars in the universe’s galaxies actually come from.
The Andromeda Galaxy.
Astronomers have taken a forensic approach to study the stellar halo of a galaxy to reveal hidden secrets on how such galaxies were formed.
A colour image of G63349, one of the galaxies in the survey, created using near-infrared (VISTA telescope) and optical (Sloan telescope) data collated by the GAMA survey. (The bright green object is a nearby star.)
Our universe’s most exciting days are well behind us, with new research showing the universe is now slowly but surely dying.
There may be more and bigger black holes out there than we thought. Do we need a map?
Meet the supermassive black hole that defied the model.
Elliptical galaxies, like this one, are burnt out and no longer making stars.
Judy Schmidt and J Blakeslee (Dominion Astrophysical Observatory)
What happens to a galaxy when it runs out of the stuff needed to forge new stars?
Something new discovered near our Milky Way.
Several dwarf galaxies have been discovered close to our own Milky Way and are adding to our understanding of how galaxies form. But why haven’t astronomers seen them before?
An artist’s impression of a galactic protocluster forming in the early universe.
European Southern Observatory
Clusters of galaxies have back-stories worthy of a Hollywood blockbuster: their existences are marked by violence, death and birth, arising after extragalactic pile-ups where groups of galaxies crashed…
Gemini North observatory, on Hawaii’s Mauna Kea, shoots a laser beam into the night sky to create an ‘artificial star’, part of a process that helps astronomers remove blurring from any images of galaxies.
Gemini Observatory and Association of Universities for Research in Astronomy
A supermassive black hole has been found in an ultracompact dwarf galaxy – the smallest galaxy known to contain such a massive black hole. This finding, published today in Nature, suggests that supermassive…