Astronaut Kathryn Thornton Works on Hubble Space Telescope

Astronaut Kathryn C. Thornton works with equipment associated with servicing chores on the Hubble Space Telescope during the fourth spacewalk on the eleven-day mission. via NASA https://ift.tt/9CGOjVZ

Cluster in the Cloud

This striking image shows the densely packed globular cluster known as NGC 2210, which is situated in the Large Magellanic Cloud (LMC). The LMC lies about 157 000 light-years from Earth, and is a so-called satellite galaxy of the Milky Way, meaning that the two galaxies are gravitationally bound. Globular clusters are very stable, tightly bound clusters of thousands or even millions of stars. Their stability means that they can last a long time, and therefore globular clusters are often studied in order to investigate potentially very old stellar populations. via NASA https://ift.tt/7h6l0Ja

Artemis II Crew’s SLS Visit

Artemis II NASA astronauts Reid Wiseman (left) and Christina Koch (middle) of NASA and CSA (Canadian Space Agency) astronaut Jeremy Hansen (second from left) view the core stage for the Space Launch System rocket at the agency’s Michoud Assembly Facility in New Orleans on Nov. 16. The three astronauts, along with NASA’s Victor Glover, will launch atop the rocket stage to venture around the Moon on Artemis II, the first crewed flight for Artemis. via NASA https://ift.tt/7dm3lLN

25 Years Ago: The First Pieces of the International Space Station

The mated Russian-built Zarya (left) and U.S.-built Unity modules are backdropped against the blackness of space and Earth's horizon shortly after leaving Endeavour's cargo bay. The photo was taken with an electronic still camera at 21:20:21 GMT, Dec. 13. via NASA https://ift.tt/rL9tP1S

Saturn and Jupiter Conjunction

The Moon, left, Saturn, upper right, and Jupiter, lower right, are seen after sunset from Washington, DC, Thurs. Dec. 17, 2020. The two planets drew closer to each other in the sky as they headed towards a “great conjunction” on Dec. 21, where the two giant planets appeared a tenth of a degree apart. via NASA https://ift.tt/wnDWPo6

Pioneer 10 Crosses the Asteroid Belt (Illustration)

If spacecraft are to visit the outer solar system, they must cross the asteroid belt between Mars and Jupiter. The Pioneer mission was faced with the question of just how dangerous this asteroid belt would be to a spacecraft passing through it. via NASA https://ift.tt/ZETxuvi

NASA Research Pilot David Zahn

"Everyone needs an anchor from their community to motivate and inspire them to move forward. I want to be a motivational anchor for the next generation of minorities." – David Zahn, NASA Research Pilot, Ames Research Center via NASA https://ift.tt/wzl94Kd