You can always rely on hecklerspray to answer some of the most pressing issues facing humanity.

Whether it is world famine, climate change, cancer or Justin Bieber, we always want to be there tackling it head first.

And this week is no different as we ask the question: Who are the sexiest aliens to ever appear on our TV or cinema screens? We've even included a couple of men is here too.

Of course, realistically, the chances of us finding any intelligent life at all in the cosmos are slim – never mind the kind of alien that would not look out of place on the cover of Vanity Fair.

In fact, it's more likely to look like the crap that grows in your coffee mug when you leave it in your bedroom too long.

Mind you, there are some sick people around. Anyway, here goes.

22. Mary, the three-breasted prostitute (Lycia Naff)

Total Recall

She has three breasts. Nothing else needs to be said.

21. Borg Queen (Alice Krige)

Star Trek: First Contact



OK, there is something wrong with us.

20. Celeste Martin (Kim Basinger)

My Stepmother is an Alien

One of the sexiest women of the Eighties.

19. Diana (Jane Badler)

The original series of V



Just imagine what she could do with that mouth of hers.

18. Lt. Saavik (Kirstie Alley)

Star Trek 2: Wrath of Khan

Yeah, we know, but she was kind of hot in the early days.

17. Princess Aura (Ornella Muti)

Flash Gordon



Sexiest voice in the universe.

16. Superman (Any actor playing him)

Superman

What? He's Superman for God?s sake.

15. Boomer/Sharon Valeri (Grace Park)

Battlestar Galactica



Not bad for a toaster.

14. Xev Bellringer (Xenia Seeberg)

Lexx

A half cluster lizard and half renegade love slave ? our favourite combination.

13. Anna (Morena Baccharin)

V: The new series



Would have been higher, but she cancelled an interview with hecklerspray at the last minute. Bet she's kicking herself now.

12. Ezri Dax (Nicole de Boer)

Deep Space Nine



Essentially, Jadzia Dax version II, which can't be all bad.

11. Chiana (Gigi Edgley)

Farscape

She's a little Chiana doll.

10. Jadzia Dax (Terry Farrell)

Deep Space Nine

The original and the best.

9. Neytiri (Zoe Saldana)

Avatar

Not bad, as far as blue-skinned CGI characters go anyway.

8. Princess Leia Organa (Carrie Fisher)

Star Wars IV-VI

Two words: gold bikini.

7. Han Solo (Harrison Ford)

Star Wars IV-VI

Come on, even straight men would consider it.

6. Seven of Nine (Jeri Ryan)

Star Trek: Voyager

Is she really an alien? Who cares! Nobody is the universe could look as good as that in that outfit.

5. T’Pol (Jolene Blalock)

Star Trek: Enterprise



Check out the clip. All we can say is the bloke must be gay.

4. Marta (Yvonne Craig)

Star Trek: Original series

One of the originals ? and still one of the best.

3. Caprica Six (Tricia Helfer)

Battlestar Galactica

Errr, the sexiest toaster in the galaxy.

2. Leeloo (Mila Jovovich)

The Fifth Element

It's the outfit that really does it.

1. Sil (Natasha Henstridge)

Species 1-2

A movie about a really hot alien who is desperate to breed, no matter what? Always going to be a winner.

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