Extraterrestrials Invade California! Alien Con 2016 in Photos

By Hanneke Weitering, Space.com Staff Writer | November 6, 2016 08:40am ET

Alien Con 2016

The History Channel hosted a convention for fans of the TV series "Ancient Aliens" and science-fiction enthusiasts in Santa Clara, Calif. over the Halloween weekend. Check out the incredible costumes and celebrity guests in this gallery.

Spaceship Wreck

An Alien Con attendee takes a selfie in front of giant sculpture of a wrecked spaceship on Oct. 28.

Alien Abduction

This Alien Con attendee poses for a photo in the clutches of a vicious-looking alien.

Saber Combat Skills Workshop

Alien Con 2016 hosted a saber combat workshop for attendees on Oct. 29.

The Receptionist

An inflatable alien sits behind the reception desk to greet visitors at Alien Con 2016.

An Alien Couple

Two Alien Con attendees dress up for a costume party on Oct. 28.

Alien Faces for Sale

A vendor sells alien masks at Alien Con 2016.

Big-Tailed Alien

Alien Con 2016 attendees takes pictures of a man in an impressive alien costume on Oct. 29.

UFO Meets Windmill Woman

A UFO appears to be attacking a windmill on a farm in this Alien Con attendee's costume during the costume party on Oct. 28.

Extraterrestrial Photo Op

Alien Con 2016 attendees take souvenir photos at the main exhibition hall on Oct. 28.

"Star Wars"

Alien Con 2016 attendees dressed in costume at the main exhibition hall on Oct. 28.

The Alien Experts

(Left to right) Author David Childress, researcher Jason Martell, investigative mythologist William Henry, ancient literature expert Ariel Tzadok, and "Ancient Aliens" producer Max Thompson on a panel discussion during the Alien Con 2016 on Oct. 29.

Katee Sackhoff

Actress Katee Sackhoff of the series "Battlestar Galactica" signs autographs at Alien Con 2016 on Oct. 28.

"Lost in Space"

Former child actor Bill Mumy, who played the role of Will Robinson in the 1960s CBS science-fiction television series "Lost in Space," signs autographs at Alien Con 2016 on Oct. 28.

Tom Skerritt

Actor Tom Skerritt, who played a role in the movie "Alien," signs autographs at Alien Con 2016 on Oct. 28.

"Ancient Aliens"

TV Producer Kristina Djokic, who worked on the History Channel show "Ancient Aliens," speaks at Alien Con 2016 during a panel discussion on Oct. 28.

"Ancient Aliens"

Giorgio A. Tsoukalos, executive producer of "Ancient Aliens," signs autographs for Alien Con 2016 fans and attendees on Oct. 29.

"Lost in Space" Robot

Attendees take photos of the "Lost in Space" robot during the Alien Con 2016 on Oct. 29.

Mark Goddard

Actor Mark Goddard, who starred in the 1960s CBS television series, "Lost in Space," signs autographs at Alien Con 2016 on Oct. 28.

Thrifty, Nifty Alien

This Alien Con 2016 attendee had brilliant idea for a low-budget alien costume a costume party on Oct. 28.

R2-D2

Star Wars' R2-D2 also made an appearance at Alien Con 2016. Here, fans check out the robot replica in the main exhibition hall on Oct. 28.

Virtual Reality at Alien Con

Alien Con 2016 attendees play with Teratini VR game on Oct. 29.

The Alien Shop

Alien Con 2016 attendees purchase merchandise at the main exhibition hall on Oct. 28.

Proof of Alien Intervention

Alien Con 2016 merchandise

Author Bio

Hanneke Weitering, Space.com Staff Writer: Hanneke joined the team at Space.com in August 2016 as a staff writer and producer. She's a self-proclaimed science geek from the South with a passion for all things out of this world! She has previously written for Scholastic, MedPage Today, Scienceline, and Oak Ridge National Lab. After studying physics at the University of Tennessee in her home town of Knoxville, she moved to New York City and earned her graduate degree in Science, Health and Environmental Reporting (SHERP) from New York University. To keep up with Hanneke's latest work, follow her on Twitter, Facebook or Google+.; Hanneke Weitering, Space.com Staff Writer on

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