Figure 1: A screen capture of the Chandra webpage, taken just after our 15th anniversary in 2014. Credit: NASA/CXC.
Peter Coles has a blog "about the Universe, and all that surrounds it".
Sean Carroll has a blog covering a range of topics in physics and astrophysics, including cosmology. Warning, some equations have been spotted.
David Kipping from Columbia has an impressive set of videos on exoplanets and related research in his Cool Worlds series.
Katie Frey from Wolbach Library at the Harvard-Smithsonian Center for Astrophysics has curated an extensive set of astronomy videos.
Figure 2: The cover of Coloring the Universe, showing an optical image from the NSF’s Mayall 4-meter telescope at Kitt Peak National Observatory of IC 1396A, a dark nebula more commonly known as the Elephant Trunk Nebula. Credit: T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOAO/AURA/NSF).
Here’s a brief explanation from Caltech about “How can I become an astronomer?”. Note there is a problem with the link to the AAS career brochure at the end. This is the correct link (https://aas.org/files/resources/Careers-in-Astronomy.pdf).