Few details have been mentioned about their discovery thus far, but they have hyped this discovery as a solution to an age-old mystery.

The press release read in full:

NASA will detail a major science finding from the agency's ongoing exploration of Mars during a news briefing at 11:30 a.m. EDT on Monday, Sept. 28 at the James Webb Auditorium at NASA Headquarters in Washington. The event will be broadcast live on NASA Television and the agency's website.

News conference participants will be:

· Jim Green, director of planetary science at NASA Headquarters

· Michael Meyer, lead scientist for the Mars Exploration Program at NASA Headquarters

· Lujendra Ojha of the Georgia Institute of Technology in Atlanta

· Mary Beth Wilhelm of NASA's Ames Research Center in Moffett Field, California and the Georgia Institute of Technology