black holes

  • A Black Hole in Sagittarius

    The folks at Astronomy Magazine published an article a short time ago reminding us that the black hole at the center of our galaxy (Sagittarius A*) was discovered 50 years ago this year. A Few Articles About Black Holes

  • The Dark Universe

    FAS Astronomers Blog, Volume 31, Number 3. This is part 2 of a 5-part series on the Universe (The Visible Universe, The Dark Universe, The Microscopic Universe, The Expanding Universe, and The Multiverse). There is much we can see in the visible universe. On the other hand, the universe is also dark and mysterious. And…

  • Sagittarius A* and the Event Horizon Telescope

    FAS Astronomers Blog, Volume 30, Number 7. Some 26,000 light years away, between the constellations Sagittarius and Scorpius, is the center of the Milky Way galaxy. Our galactic center is extremely dense with stars packed in much tighter than here in the galactic outskirts. The editors of EarthSky note that it would outshine a full…

  • Black Holes

    Young Astronomers Blog, Volume 28, Number 22. The 2020 Nobel prize in physics was recently awarded to three scientists, Roger Penrose, Reinhard Genzel, and Andrea Ghez, for their landmark work with Black Holes. Black Holes are probably one of the strangest and most interesting objects in the cosmos. Their density is so great that gravity…

  • Stellar Society Lecture at GTCC, Friday, 12 April

    A free public lecture will be held at 7 p.m. on Friday, 12 April at the Koury Auditorium at GTCC’s Jamestown campus. Please note that the location for this talk is NOT the same auditorium as was used for TriStar. Koury is Building 19 on the campus map at http://www.gtcc.edu/media/10954/jamestowncampusmap.pdf. TriStar was in Building 25.…