6+ hour, 47+ min ago   (88+ words) The most comprehensive catalogue of exploding white dwarf stars ever assembled has revealed new clues about dark energy, the mysterious force driving the universe’s accelerating expansion....

1+ day, 9+ hour ago   (185+ words) Light could only travel freely in the Universe after cosmic reionization. Before that, neutral hydrogen stopped photons from travelling. The JWST has found evidence of an overdensity of galaxies carving out a bubble of reionization. Is this how it all…...

3+ day, 15+ hour ago   (641+ words) Astronomers refine their understanding of gas movement by observing it in more types of environments, and in more complex environments. Researchers in Japan recently used CO observations to map gas in an especially complex and unique environment: Stephan's Quintet. The…...

3+ day, 21+ hour ago   (157+ words) A few hundred million years after the Big Bang, the first stars ignited - literally the “let there be light” moment for the universe. Now known to astronomers as Population III, or Pop III, stars, these giants were very different from…...

4+ day, 17+ hour ago   (222+ words) Some eROSITA quasars in this study. The eight exceptional black hole are at the upper left of the figure. Credit: Buchner, et al In short, these giant black holes are eating themselves out of house and home. One distinct feature…...

5+ day, 16+ hour ago   (161+ words) Each of the quiet black holes we've discovered this way has a small stellar companion. This means that in the past these were asymmetrical binaries, meaning that one of the stars was much larger than the other. The remnants of…...

6+ day, 17+ hour ago   (31+ words) Future gravitational wave observatories will be able to see the gravitational waves of close-orbiting binary stars. A newly studied white dwarf system could be one of the first systems we observe....

1+ week, 4+ day ago   (427+ words) Extreme quasars near the dawn of time are giving astrophysicists clues to the formation of supermassive black holes....

1+ week, 4+ day ago   (838+ words) The JWST examined ancient light from the Universe's first galaxies and black holes and uncovered some puzzles. Galaxies and SMBH from the Universe's early days were much more fully-formed than cosmologists thought they might be. Finding an explanation for these…...

2+ week, 4+ day ago   (1070+ words) Mass transfer between stars isn't rare. Most stars, including massive ones, are born in binary pairs, and this situation is ripe for mass transfer between the stellar siblings. Since stars expand as they age and evolve, it makes interactions between…...