Joseph Gordon-Levitt's older brother Dan passed away over the weekend. The "Inception" and "500 Days of Summer" star announced the news via his Twitter account: "My super hero brother @burningdan 1974-2010. Celebrate his life here ~ http://bit.ly/dBTMQ8 because he's f---ing awesome."

Joseph's tweet directed fans to his website, hitRECord.org, on which he and his brother, a.k.a. "Burning Dan," were partners.

"BURNING dAN brightly embodied that bold beastly bliss sometimes referred to as 'the creative spirit,' " the actor wrote in tribute on the site. "He was my chief collaborator on the foundational incarnations of hitRECord.org over the years and continues to inspire us ever the more. He would absolutely positively insist that we not let this bad news deter us on our collective mission. That said, I might not feel up to it for a little while."

No details have been released surrounding his death. Dan, 36, was an artist-of-all-trades, who dabbled in photography and performance art, and taught fire dancing at the Flow Temple Arts School in Venice, California. In his own words, Dan was "a Flow Artist, performance photographer, swashbuckler, computer programmer and internet citizen bent on saving the world with panache."

Dan told Popeater in August that fire dancing "is a combination of performance art and dance and meditation and yoga and sort of self-transformation, to give you a fun way of doing something that's really good for you and helps you be an even smoother, more awesome person than you already were."

Dan also talked about the special bond he shared with his brother.

"It's wonderful to be mistaken for him. He taught me to question the relationships other people have with their siblings because he would be my favorite person in the world even if I wasn't lucky enough to know him as my brother," Dan said. "He's just awesome in every way that I pay attention to."

Both hitRECord.org and Dan's tumblr have been flooded with messages of love and support for the Gordon-Levitt family.

"Dan touched so many lives and will continue to inspire people long after he is gone," one commenter wrote. "Not a person who has met him has a bad thing to say of him, he was truly a magnificent soul. It's a sad day to know he is gone, but his teachings live on."

Share your well-wishes for Dan's family in the comments.