We’re celebrating 50 years of Landsat. via NASA https://ift.tt/mt4h5LR

Beautiful spiral galaxy Messier 74 (also known as NGC 628) lies some 32 million light-years away toward the constellation Pisces. An island universe of about 100 billion stars with two prominent spiral arms, M74 has long been admired by astronomers as a perfect example of a grand-design spiral galaxy. M74’s central region is brought into […]

HDV is developing the necessary systems to enable urban drone flights that travel beyond visual sight. via NASA https://ift.tt/KFuzTas

Imaged on July 15 2022, comet C/2017 K2 (PanSTARRS) had a Messier moment, sharing this wide telescopic field of view with globular star cluster Messier 10. Of course M10 was cataloged by 18th century comet hunter Charles Messier as the 10th object on his list of things that were definitely not comets. While M10 is […]

The Apollo 11 crew simulates deploying and using lunar tools on the surface of the Moon during a training exercise on April 22, 1969. via NASA https://ift.tt/WQZjRsP

Why does Jupiter have rings? Jupiter’s main ring was discovered in 1979 by NASA’s passing Voyager 1 spacecraft, but its origin was then a mystery. Data from NASA’s Galileo spacecraft that orbited Jupiter from 1995 to 2003, however, confirmed the hypothesis that this ring was created by meteoroid impacts on small nearby moons. As a […]

Supernovas are the explosive deaths of the universe’s most massive stars. via NASA https://ift.tt/Tf0Ml8c

Stars come in bunches. The most famous bunch of stars on the sky is the Pleiades, a bright cluster that can be easily seen with the unaided eye. The Pleiades lies only about 450 light years away, formed about 100 million years ago, and will likely last about another 250 million years. Our Sun was […]

This tunnel view looking up from level 5 is of the Zero Gravity Facility at Lewis Research Center, now known as the Glenn Research Center. via NASA https://ift.tt/baS9MEU

OK, but why can’t you combine images from Webb and Hubble? You can, and today’s featured image shows one impressive result. Although the recently launched James Webb Space Telescope (Webb) has a larger mirror than Hubble, it specializes in infrared light and can’t see blue — only up to about orange. Conversely, the Hubble Space […]