Tweet of the DAY 📌@NASA @esa Space Agency


#ICYMI – crews with @NASAGroundSys at @NASAKennedy added the launch vehicle stage adapter atop the massive SLS core stage on the mobile launcher earlier this week.


Our IRIS mission launched 8 years ago today! IRIS observes how solar material moves, gathers energy, and heats up as it travels through a little-understood region in the Sun’s lower atmosphere. Explore IRIS science at


Selfies aren’t an Earthbound phenomenon only. Rovers like @NASAPersevere can also take selfies alllll the way from the Red Planet. 𝘽𝙪𝙩 𝙝𝙤𝙬? We got you covered


Happy Launch Anniversary IRIS! The mission to study the solar atmosphere was placed in orbit by a Pegasus XL rocket. The Pegasus was released from the “Stargazer” L-1011 carrier aircraft. IRIS is a mission to observe how solar material moves and gathers energy


Did you know a massive star is sort of like an onion? Before it dies as a supernova, it consists of multiple layers of different chemical elements from hydrogen at the surface down to iron at the core. #OnionDay


We were pleased to welcome Maryland @GovLarryHogan to Wallops to tour our range control center, sounding rockets fabrication and test facility, @VCSFA_MARS launch complex, and @NorthropGrumman Antares rocket.

@Space_Station TWEET

A @Roscosmos resupply ship will launch to the station at 7:27pm ET on Tuesday and dock two days later live on @NASA TV.


It’s #SunDay! @USPS issued new #SunScienceStamps showcasing our views of the Sun from space. Explore the data behind each stamp:

@NASA_Marshall TWEET

#ICYMI: Stacking of #NASAMarshall-built element completed for agency’s Moon rocket, @chandraxray measures motions of remarkable cosmic structure, and take 360-degree tours of Marshall!


“I got into this because I saw a picture from Sojourner, NASA’s first Mars rover,” – Vandi Verma, @NASAPersevere chief engineer for robotic operations at @NASAJPL. Watch as she explains how & why our rover takes a selfie on the Red Planet:

@ISS_Research TWEET

A market is growing at gravity’s edge, benefiting those of us on Earth down below. Explore the businesses working aboard the @Space_Station in @NASAScienceCast’s 3-part series.


Check out the whereabouts of our @NASAPersevere rover on Mars with this interactive map. Track its latest location and traverse path for Perseverance at the Jezero Crater. Try it now:

@esa TWEET

“Engineering is the making of things that did not previously exist, whereas science is the discovering of things that have long existed.” — David Billington

@esa TWEET

This NASA/ESA @HUBBLE_space Telescope image is one of the sharpest wide-angle views taken of Messier 82 (M82), a galaxy remarkable for its flame-like plumes of glowing hydrogen blasting from its central regions where young stars are being born