Impossible Astronaut Day

Impossible Astronaut Day is observed next on Wednesday, April 23rd, 2025 (150 days from today).

How many days until Impossible Astronaut Day?

Impossible

A chance for all lovers of the British sci-fi television series, Doctor Who, celebrate Impossible Astronaut Day on April 23rd.

History of Impossible Astronaut Day

On April 23, 2011, the first episode of the sixth season of the "Doctor Who" series aired on television as "The Impossible Astronaut". In fact, this sci-fi series first appeared on television in 1963.

The show has garnered fans of different generations and it follows the adventures of the Doctor, a time-traveling 'alien'. The Doctor travels through time and space in a time machine that is also a spaceship, known as the Tardis. Tardis looks like a discreet London police box from the 1960s.

The episode "Impossible Astronaut" quickly became one of the most viewed and highly rated episodes. In this episode, the content is the introduction of new alien monsters, called Silence. The characters cannot remember that they saw the alien monsters when they took their eyes off them. To remind themselves that they've seen monsters, the characters begin tally marks on their skins.

To celebrate this day, all Whovians draw tally marks on their skin or body parts. As an inside joke, fans act normal and pretend they don't know why the tally points are there.

Some truths about Impossible Astronaut Day

  • 12 actors played the role of Doctor

In general, there were 12 different actors who played the Doctor in the movie.

  • The program aims to educate children

The director of the first episode stated that the series aims to educate children about the human condition.

  • The first doctor's health problems led to the concept of regeneration

The concept of the Doctor's regeneration was created by some health problems of the first actor playing the Doctor.

  • Tardis wasn't always supposed to look like a police box

In some episodes, Tardis is shown to be possible to blend into the times and places it travels because one of its circuits is damaged, it stays forever as a 60s’ police phone box.

  • Douglas Adams has written several episodes of Doctor Who

Douglas Adams, author of "The Hitchhiker's Guide to the Galaxy" was commissioned to write episodes of the hit sci-fi series.

Some interesting reasons explained for Impossible Astronaut Day favorite

  • We love the setting of this episode

The episode's setting is beautiful, and its raw cinematic feel is one of the best we've seen.

  • The beginning of this episode was amazing

The opening of this volume shows the killing of the series' main character, which is a definite shocking opening for fans.

  • It is a reminder about the best enemy of Doctor Who

In this episode, we were introduced to Doctor Who's greatest enemy, the Silence. They are voted as the best monster designs on the show.

How to celebrate Impossible Astronaut Day

  • Watch the episode "Impossible Astronaut"

To revive your memories, watch the episode "Impossible Astronaut".

  • If you haven't seen the show yet, now is the time!

If you haven't seen the show yet, now is a better time than ever and who knows, you might be joining all the other Whovians!

  • Mark the tally on your body

Mark the tally on your body like the characters did in the episode "Impossible Astronaut".

Observed

Impossible Astronaut Day has been observed annually on April 23rd.

Dates

Sunday, April 23rd, 2023

Tuesday, April 23rd, 2024

Wednesday, April 23rd, 2025

Thursday, April 23rd, 2026

Friday, April 23rd, 2027

Also on Wednesday, April 23rd, 2025

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