The Mars rover 'Curiosity' has been combing the red planet for over six years. But what exactly did it just find? NASA isn't saying, but they'll be holding a press conference to talk about 'new science results'. Other than that, we can only speculate. One UFO enthusiast insists it will reveal alien fossils, which would then prove that some form of life once existed on the planet.
The press conference will be streamed online via NASA's website.