Halle Berry took a zero gravity flight to prepare for her latest role as an astronaut.

She said: "I watched lots of videos of astronauts, men and women, actually in space. I took a Zero G gravity flight to get that sense memory in my body.

"That was really important for me to pull off those Zero G scenes that we do on our show.

"I questioned if it would be believable that I were really an astronaut, me, Halle Berry, the actress playing this part. And after I met a few female astronauts I thought, you know, yeah, this really is believable.

"These women are not as far away from who I am. They're mothers, they're wives, they're intelligent.

"Yes, they are accomplished in their field, but they are ordinary everyday women and I thought, I can relate to that."

The raven-haired star loved the weightless scenes in the TV series but admitted they weren't as "hard" to film as when she played Storm in the 'X-Men' film franchise.

When asked if she enjoyed the zero gravity scenes, she added: “I love that part of filmmaking, movie-making, TV-making. I love that.

"That's one of the things I loved the most about being Storm in 'X-Men' was to get to fly and be on those wires and do that kind of stuff myself.

"So, I mean on this show I was just hovering two feet above the ground. When I'm Storm I'm like way up in the air and doing all kinds of things. So, this was not hard for me.

"It was just fun and I'm glad I had that sense memory from actually taking a Zero G flight, because that informed where I put my hands, how much I had a certain energy to move from place to place. And I think all those little details hopefully will make it feel real for the audience."

'Extant' starts on Tuesday (20.01.15) at 9pm on Syfy UK.