From tweeting about UFOs to sharing their thoughts on government UFO conspiracies, celebrities were vocal about their UFO beliefs in 2011. Some even tweeted their personal UFO sightings.

Have you seen a bright light zipping around in the sky and wondered if you were witnessing an extraterrestrial visitation? That UFO could have been a fancy remote control airplane lit up with LED lights.

The idea of life on Venus is not given much credence by most mainstream scientists because of the extreme surface temperatures, which can exceed 800 degrees Fahrenheit.

The Search for Extraterrestrial Intelligence (SETI) program has not gone unscathed from the recent economic turmoil. In fact, in April of last year, their flagship radar field went dark.