Carl Sagan

American astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator. Dad of 4 sons and 1 daughter.

[EarthSky @earthskyscience]

C. Brezina in MI wrote: “Red moon! We couldn’t imagine what was causing the color then learned it was forest fires.”
https://t.co/uO3KDcqB5F

[EarthSky @earthskyscience]

See the 2 giant sunspots – AR2673 and AR2674?

Photo: Gowrishankar Lakshminarayanan

Your eclipse glasses will work to see the sunspots!

[NASA @NASA]

.@Space_Station cameras provide another captivating view of the devastatingly powerful & unyielding #HurricaneIrma https://t.co/mdZwv9BJwh

[National Air and Space Museum @airandspace]

TDIH 1995: Space Shuttle Endeavour (STS-69) launched carrying SPARTAN 201 satellite, now at our Udvar-Hazy Ctr: https://t.co/8mUjjEwnFQ

[Carl Sagan @RealCarlSagan_]

Did you know that it takes a photon 200,000 years to travel from the core of the Sun to the surface!!

[Carl Sagan @RealCarlSagan_]

did you know that we can only detect about 5% of the matter in the universe.

[Carl Sagan @RealCarlSagan_]

Did you know Jousting is the official sport of the state of Maryland???

[Carl Sagan @RealCarlSagan_]

Did you know that velociraptors were slightly bigger than chickens!🐔🐤🐣🐥

[Carl Sagan @RealCarlSagan_]

Did you know the total weight of all the ants on Earth is greater than total weight of all the humans on the planet.

[Carl Sagan @RealCarlSagan_]

Did you know more than 2,500 left-handed people are killed every year from using equipment meant for right-handed people.

[Carl Sagan @RealCarlSagan_]

Did you know psychology is the brain trying to comprehend itself!

[Carl Sagan @RealCarlSagan_]

Did you know vending machines kill 4 times as many people as sharks per year!! Crazy😎😎😂😂😂😂😂😂😂😂😂😂😂🤠🤠🤠

[EarthSky @earthskyscience]

Look for the daytime moon in the west after sunrise! https://t.co/aiQC0aTTNL Image credit: Brian Pate #waninggibbous

[NOAA Satellites @NOAASatellites]

On 9/6 #GOES16's Solar Ultraviolet Imager observed the most powerful solar flare in over a decade! More on SUVI @ https://t.co/HQGqqSrW4S

[Carl Sagan @RealCarlSagan_]

one of my biggest personal struggles is dealing with my anti social tendencies.

[Carl Sagan @RealCarlSagan_]

Did you know that there are two mammals that lay eggs!! he duck-billed platypus and the echidna

[Carl Sagan @RealCarlSagan_]

Did you know that Saturn would float if you would put it in water!💯💯

[Carl Sagan @RealCarlSagan_]

"Imagination will often carry us to worlds that never were. But without it we go nowhere" ~ Carl Sagan

[Carl Sagan @RealCarlSagan_]

currently writing my 567th paper on astronomy #grindneverstops 😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤😤