SmithsonianObs (SAO)

Step into the explosion of a massive star with a new interactive simulation created by @SmithsonianEdu with @saoastro. Explore "Journey Through an Exploded Star" at http://s.si.edu/supernova .pic.twitter.com/HanYLgcsWr

Starting NOW: don’t miss the opportunity to visualize & better understand the electromagnetic spectrum through this newly available @smithsonian 360° tour through the center of an exploded star, narrated by @saoastro astronomer @kimberlykowal. http://s.si.edu/360supernova pic.twitter.com/trnABX5IwA

Psst, zoom in. Can you spot Messier 87 on this glass plate photograph from March 15, 1934? It looks very different from the images we've been seeing in the news lately. (plate MC27128) #EHTBlackHole #galaxy #history #photograph #space #BlackHolepic.twitter.com/IYecd6oku3

Katie Bouman led the creation of an algorithm that helped capture the first ever image of a black hole. We asked her what this breakthrough means for science. For more reaction from other scientists, visit our YouTube channel: https://go.nature.com/2P3CBNn pic.twitter.com/mrz65x3nzA

What does today's black hole image news mean? Our @ChandraXRay Observatory team puts it into perspective and shares just what a difficult feat it was for @NSF and @EHTelescope to obtain the new black hole image. Read more about #EHTBlackHole: https://go.nasa.gov/2G53mgk pic.twitter.com/TQD8HSdbGG

This is the first image ever of a black hole. The breakthrough discovery by the @ehtelescope is an image of Messier 87’s (M87’s) supermassive black hole in the center of the Virgo galaxy cluster, 55 million light-years away. #EHTBlackhole #RealBlackHolepic.twitter.com/nU96UFbjeq

Did you hear the news? Today, the Event Horizon Telescope team revealed the first ever picture of a black hole. Congratulations to our friends at @saoastro and the rest of the team on this historic achievement. #EHTBlackHolepic.twitter.com/r085tu6Wdl

On March 6, our Solar Dynamics Observatory witnessed a lunar transit where both the Sun and Moon displayed a little odd behavior. Not only did the Moon seem to double pack partway through, but the Sun seems to "shiver" throughout. Here's why it happened: https://blogs.nasa.gov/sunspot/2019/03/20/dancing-the-lunar-transit/ …pic.twitter.com/TRsznTvNUt

Ursula Marvin was a planetary geologist at the Smithsonian Astrophysical Observatory. She hunted for meteorites in Antarctica and analyzed moon rocks from the Apollo missions http://bit.ly/2Up4Nfm  #BecauseOfHerStorypic.twitter.com/xtzxh8aeDI

#BecauseOfHerStory we know more about the cosmos. : @SmithsonianChanpic.twitter.com/scU0O5ApzG

Who wore it better? Ralphie's little brother from "A Christmas Story" or Dr. Ursula Marvin, geologist at @saoastro? Here, she displays her Antarctic gear during an expedition where she searched for and analyzed meteorites. More on her work -->http://s.si.edu/2RcnPXU  (:96-1022)pic.twitter.com/vpSJ5fS5wD