Bad Astronomy 2 Dec 2020, 14:00 UTC Astronomers have found that a giant cluster of stars orbiting the Andromeda Galaxy is incredibly deficient in heavy elements, so much so that it totally blows away any previous record. This likely means it's terribly ancient, perhaps older than any other such cluster ever seen. It also changes what astronomers think about how such clusters are born.
Spiral-shaped Planetary Disks Should Be More Common. Giant Planets Might Be Disrupting Their Formation1 Dec 2020, 19:20 UTC Planetary system formation is a process that involves astounding and complex forces. Humans have only just started trying to understand what goes on in this extraordinarily important phase of the development of new worlds. As such, we are continuing to make new discoveries and come up with better models that better fit the observations that our instruments are able to collect.
Centauri Dreams 30 Nov 2020, 16:36 UTC There was a time when the Solar System seemed relatively well defined, with nine planets including Pluto and an asteroid belt that orbited in a niche between Mars and Jupiter. These days, in addition to the Kuiper Belt and Oort Cloud, we have to factor in all the objects that move on unusual orbits. We have a mission in the works, called Lucy, to the Jupiter Trojans, those asteroids that share the giant planet’s orbit around the Sun. And today we’re looking at Centaurs, which cross the orbits of giant planets and are in rapid dynamical evolution.
Universe Today 25 Nov 2020, 15:49 UTC The surface of the Sun is a turbulent dance of gravity, plasma, and magnetic fields. Much like the weather on Earth, its behavior can seem unpredictable, but there are patterns to be found when you look closely.