Archivo de la etiqueta: Astronomy photo

From March 20-23, 2018, the Solar Dynamics Observatory captured a series of images of our Sun and then ran together three sequences in three different extreme ultraviolet wavelengths.

Attendees talk with NASA staff at exhibit booths during Sneak Peek Friday at the USA Science and Engineering Festival, Friday, April 6, 2018. At the festival, NASA showcased the future of human space exploration – including the Orion spacecraft and the Space Launch System rocket.

These graceful arcs are a cosmic phenomenon known as an Einstein ring – created as the light from distant galaxies warps around an extremely large mass, like a galaxy cluster.

Gullies on Martian sand dunes, like these in Matara Crater, have been very active, with many flows in the last ten years.

We honor the legacy of Dr. Martin Luther King Jr., who delivered the famous «I’ve been to the mountaintop» speech in Memphis, Tennessee fifty years ago, the day before he was assassinated on April 4, 1968. This image taken from the International Space Station shows a detailed view of the city of Memphis from low-Earth orbit.