This galaxy is called M63 because of its listing the the Messier catalog. It’s also known as the Sunflower Galaxy. M63 has a spiral shape with no central bar feature and moderate to loosely wound arms. The spiral structure isn’t readily apparent in visible light. However, when viewed in the near infrared, the galaxy’s two spiral arms are easily seen. Each arm wraps 150° around the galaxy and extends up to 13,000 light-years from the nucleus.
Image Credit: ESA / NASA
NGC 6118 is a grand-design spiral galaxy, and it shines bright in this image taken by ESO’s Very Large Telescope. Its central bar and tight spiral arms are clearly visible. The galaxy is sometimes known to amateur astronomers as the “Blinking Galaxy” because this relatively faint, fuzzy object can appear to flick into existence when viewed through small telescopes and then suddenly disappear again as the observer’s eye position shifted.
Image Credit: ESO
Gamma ray bursts are the brightest explosions we see in the Universe. The farthest known GRB occurred 12.2 billion light-years away in the constellation Carina. The explosion that created GRB 080916C contained the power of 9,000 supernovae. This very short movie shows Fermi Large Area Telescope observations of GRB 080916C. About 8 minutes of data are compressed into 6 seconds. The colored dots represent gamma rays of different energies. The blue dots represent lower-energy gamma rays; green, moderate energies; and red, the highest energies.
Video Credit: NASA / DOE / Fermi LAT Collaboration