Group Information
Last Activity: | 5 Months Ago |
Group Leader: | tom4611 |
Moderators: |
RockportSpur novagalme |
Submissions: | Open |
Group Visitors: | 628,635 |
Founded: | April 20th, 2013 |
Top Contributors
Recently Active Members
Recently Joined Members
Globular Cluster Messier 54
Wallpaper Description:
This stunning space image from the VLT Survey Telescope at ESO's Paranal Observatory in northern Chile shows the globular cluster Messier 54. This cluster looks very similar to many others, but it has a secret. Messier 54 doesn't belong to the Milky Way, but actually is part of a small satellite galaxy, the Sagittarius Dwarf Galaxy. This unusual parentage has allowed astronomers to use the Very Large Telescope (VLT) to test whether unexpectedly low levels of the element lithium in stars are also found in stars outside the Milky Way.Credit: ESO