Viking 1 Lander (USA) Exploring Mars 1976 July 1976 the Viking-One spacecraft tested for life on...

Viking 1 Lander (USA) Exploring Mars 1976

July 1976 the Viking-One spacecraft tested for life on Mars with four experiments.

Extraterrestrial Life (On Mars?)

ScienceNotes SPI 0807.5.4 BiodiversityExobiology

One experiment gave a positive reading. (Results were considered inconclusive)

D) March 2011 -NASA scientist, Richard B. Hoover, (astrobiologist) stated for the 3rd time his view that microfossils were present in meteorites from Mars

A) 1984 -A Martian meteorite found on Earth showed potential signs of life

B) 1998 -Another Martian meteorite found on Earth appeared to have fossils of life forms similar to bacteriaC) July 2003 -NASA confirmed the existence of water on Mars in the form of underground ice.

Extraterrestrial Life (On Mars?)


Does intelligent life (aliens) exist elsewhere in the universe?

If yes, what would they look like?Let’s view some images about what Hollywood and the general public thinks aliens might look like.


Notice that they are all humanoid.Why are aliens usually depicted as looking humanoid?

Star Wars: Wookies


Star Wars: Greedo


Star Wars: Jabba the Hutt


Alien Abduction Stories: (Blue or Gray Aliens)


Star Trek-Aliens: (Male and Female)


Independence Day (movie)


What About UFOs?

U.F.O.stands for unidentified flying object

(see images on following slides)


can be anything flying in the sky that you don’t recognize

However, just because you don't recognize it does not mean that it is extraterrestrial (maybe or maybe not)

Flying Saucers (Are these real?)


What About Spaceships from the Movies?

Movie Spaceships

(see images on following slides)


often have "magical" anti-gravity devices and faster-than-light engines (both may be impossible)

come in all shapes and sizes

Star WarsX-Wing Fighter


Battlestar GalacticaViper Fighter


Star Wars Star Destroyer


Battlestar GalacticaBattlestar Combat Ship


Star Trek: USS Enterprise


Have intelligent aliens ever visited Earth? I your groups and decide yes or no about this question. Then

provide (at least) one valid scientific reason to support your point of view.

Would intelligent aliens be friendly or hostile?

Again decide yes or no to this question and again provide (at least) one valid logical reason to support your opinion.


Brainpop Video

Now we will watch a Brainpop video (After watching it, complete the Brainpop quiz)

Click on this link and log in: Brainpop website

ScienceSPI 0807.5.4 BiodiversityExobiology

Viking 1 Lander (USA) Exploring Mars 1976 July 1976 the Viking-One spacecraft tested for life on...

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