NASA is preparing to reveal a “major science finding” regarding Mars on Monday, with the agency planning a special news conference to announce the findings.

The event will take place at 11.30 a.m. EDT (4.30 p.m. BST) on Monday, and you will be able to watch it live on NASA TV, which we have handily embedded below. Reporters will be onsite and asking questions by phone, while the public can get involved via #AskNASA.

What will the announcement be about? Well, you’ll have to wait and see, as NASA won’t be releasing any more information to the public until then.

Broadcast live streaming video on Ustream

Taking part in the news conference will be Jim Green, director of planetary science at NASA Headquarters; Michael Meyer, lead scientist for the Mars Exploration Program at NASA Headquarters; graduate student 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; and Alfred McEwen, principal investigator for the High Resolution Imaging Science Experiment (HiRISE) at the University of Arizona in Tucson.

Such events for NASA are not unprecedented, but they do usually herald a major discovery. In July, NASA convened a similar conference to announce the discovery of Kepler-452b, the most Earth-like planet found outside the Solar System to date. While this latest event won’t be announcing life on Mars, its implications could be vital in understanding more about the Red Planet.

So tune in on Monday for a groundbreaking discovery about a world that we think was once rather similar to our own.