Alternative journal entry:
A statue from the asari Hesperia period was recovered from the Athena Nebula. Find someone on the Citadel who can use it.
Listen in on the asari scientist sitting at the Bank area of the Presidium Commons. You will find her only after you stop Udina's coup.
Alternatively, a Search and Rescue operation in the Athena Nebula will yield the statue and this mission's journal entry. In this case it is labeled Citadel: Hesperia Period Statue.