Astronomy Picture of Day: Galaxy and Quasar# Astronomy - 天文
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The Galaxy and the Quasar
Credit: R. Knacke (Penn State Erie) et al., Hubble Heritage Team, NASA
Explanation: Is the galaxy in the center connected to the quasar on the upper right?
Disagreements about systems like this have raged for decades and have been used to
challenge the foundations of modern cosmology. Some believe that the quasar Markarian
205 was recently ejected from galaxy NGC 4319, indicating that the high redshift of
Markarian 205 is not indicative of its distance. Most astro
Credit: R. Knacke (Penn State Erie) et al., Hubble Heritage Team, NASA
Explanation: Is the galaxy in the center connected to the quasar on the upper right?
Disagreements about systems like this have raged for decades and have been used to
challenge the foundations of modern cosmology. Some believe that the quasar Markarian
205 was recently ejected from galaxy NGC 4319, indicating that the high redshift of
Markarian 205 is not indicative of its distance. Most astro