2+ day, 19+ hour ago   (132+ words) The James Webb Space Telescope (JWST) has opened up many wonders of the cosmos to scientists since it began its science operations a few years ago. But one thing that it hasn’t done is find an “exomoon”. These, as yet…...

3+ day, 9+ hour ago   (517+ words) Universe Today Shortly after the James Webb Space Telescope (JWST) became operational, it directed its sophisticated infrared optics towards the early Universe. There, it observed an abundance of small red objects that turned out to be high-redshift galaxies that existed…...

3+ day, 14+ hour ago   (862+ words) A distant star has captured astronomers' attention over the past decade, teasing them with indications that it will soon explode as a supernova. But new research shows that something else entirely is behind the star's outbursts. Rather than an impending…...

3+ day, 17+ 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, 20+ hour ago   (911+ words) We’ve been searching for life on Mars for a long time now, but so far we’ve come up empty. The fundamental problem is a Catch-22 of two of the key ingredients for life. Life as we know it needs liquid…...

3+ day, 22+ 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, 19+ 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…...

4+ day, 21+ hour ago   (115+ words) Halley’s comet captures the imagination in a way that few other astronomical objects do. When it last made its approach toward the Sun (admittedly when this author, who is now middle-aged, was one year old in 1986), humanity responded with a…...

6+ day, 18+ 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, 1+ day ago   (41+ words) Pulsar Timing Arrays have been used to observe the background of gravitational waves in our galaxy. We aren't certain of their origin, but a new study shows a strong source could be early supermassive giants known as dark stars....