Anne’s Image of the Day: The Fireworks Galaxy
By Annelies Rhemrev
October 30, 2012
The Fireworks Galaxy, a spiral galaxy in Cepheus and Cygnus
Image Credit & Copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona (http://www.caelumobservatory.com/index.html)
Clich here [...]
Blazars Still Mysterious Cosmic Objects
By Annelies Rhemrev
A blazar is a galaxy with an intensely bright central nucleus containing a supermassive black hole, much like a quasar. The difference is that a blazar can emit light with extremely high energy gamma rays that are sometimes [...]
Anne’s Image of the Day: NGC 2787
By Annelies Rhemrev
October 28, 2012
NGC 2787, a lenticular galaxy in Ursa Major
Image Credit: M. Carollo (Swiss Federal Institute of Technology, Zurich), NASA and The Hubble Heritage Team (STScI/AURA)
Click here for a larger image.
NGC 2787 [...]
Anne’s Image of the Day: The Cartwheel Galaxy
By Annelies Rhemrev
October 26, 2012
The Cartwheel Galaxy, a ring galaxy in Sculptor
Image Credit: ESA/Hubble & NASA
Click here for a larger image.
The Cartwheel Galaxy (ESO 350-40) is a ring galaxy of some 150,000 light-years across (which [...]
Anne’s Image of the Day: The Eyes
By Annelies Rhemrev
October 22, 2012
The Eyes, a galaxy pair in Virgo
Image Credit & Copyright: Ken Crawford, Rancho Del Sol Observatory (http://www.imagingdeepsky.com and www.aicccd.com)
For larger image click here.
The Eyes (also [...]
Anne’s Image of the Day: Circinus Galaxy
By Annelies Rhemrev
October 14, 2012
Circinus Galaxy, an active spiral galaxy in Circinus
Image Credit: Andrew S. Wilson (U. Maryland) et al., WFPC2, HST, NASA
For a larger image click here.
Circinus Galaxy (ESO 97-G13), is an active spiral [...]
Star- and Planet-Forming Dust in Galaxies Soon After Big Bang
By Annelies Rhemrev
Dust is an annoyance in everyday life, but an important building block of stars and planets. As such, astronomers need to understand how cosmic dust forms over time — it’s an integral step in figuring out the evolution [...]