Thomas Downie

[Thomas Downie @Tdownie1]

@KyriakosAnayio3 It would be interesting if the rover found these rocks within this lakebed.

[Thomas Downie @Tdownie1]

@KyriakosAnayio3 Yes one of the proposed formation scenarios for those rocks is through precipitation from shallow ephemeral lakes.

[Thomas Downie @Tdownie1]

@Tdownie1 https://t.co/jvTKWVX9rH

[Thomas Downie @Tdownie1]

Interesting use of trace minerals in carbonate stalagmites as a record of historical precipitation. Link follows #AqGCw2017

[Thomas Downie @Tdownie1]

@Tdownie1 https://t.co/PfzRYSOgPF

[Thomas Downie @Tdownie1]

Lack of carbonates on Mars suggests atmospheric CO2 was not high enough to sustain liquid water at surface. Link Follows #AqGCw2017

[Ubisoft @Ubisoft]

@CTZ @GreatWallofChin @UberFacts ESPECIALLY the bears. #bearfacts

[John Alexander @JohnMacG7]

Team Ukraine, dodgeball champs!!! #proudofyouteam #forclayton

[Thomas Downie @Tdownie1]

I wouldn't be able to sleep the night before a diploma.

[Thomas Downie @Tdownie1]

Merry Christmas!!

[Thomas Downie @Tdownie1]

Fun Night :)

[Thomas Downie @Tdownie1]

Yay for a black eye the day before Hawaii.

[Thomas Downie @Tdownie1]

@bobynboy #toothlessftw #toothlessftw #toothlessftw

[Thomas Downie @Tdownie1]

@bobynboy why isn't yours?

[Thomas Downie @Tdownie1]

@bobynboy why do you like that picture so much?

[Thomas Downie @Tdownie1]

@bobynboy Not much

[Thomas Downie @Tdownie1]

@bobynboy Oh hey man