[NEWS] Six D-Brief links: Sagittarius A*, GRBs, Saturn, Planet Nine, Earth, starlight

[rfmcdonald]

• Are the radio jets of Sagittarius A* at the heart of our galaxy pointed directly at Earth? D-Brief reports reports.


• Astronomers might finally have established a firm connection between supernovas and gamma-ray bursts. D-Brief reports reports.


• The length of a day on Saturn has finally been established, at just over 10 hours and 33 minutes. D-Brief reports reports.


• The supposed signature of Planet Nine might be a creation not of a ninth planet but rather by a thick distant belt of objects. D-Brief reports reports.


• Did the collision of protoplanet Theia with the young Earth seen the subsequent world with the materials needed for life? D-Brief reports reports.


• The very idea of an encyclopedia of galactic starlight is profoundly poetic, to say nothing of its scientific uses. D-Brief reports reports.