Simulation TNG50: A Galaxy Cluster Forms
How do clusters of galaxies form? Since our universe moves too slowly to watch, faster-moving computer simulations are […]
astronomy
RCW 86: Historical Supernova Remnant
In 185 AD, Chinese astronomers recorded the appearance of a new star in the Nanmen asterism. That part […]
Titan: Moon over Saturn
Like Earth’s moon, Saturn’s largest moon Titan is locked in synchronous rotation. This mosaic of images recorded by […]
NGC 4565: Galaxy on Edge
Magnificent spiral galaxy NGC 4565 is viewed edge-on from planet Earth. Also known as the Needle Galaxy for […]
The Lively Center of the Lagoon Nebula
The center of the Lagoon Nebula is a whirlwind of spectacular star formation. Visible near the image center, […]
A Deep Sky Behind an Eclipsed Moon
The plan was to capture a picturesque part of the sky that was hosting an unusual guest. The […]
The Once and Future Stars of Andromeda
This picture of Andromeda shows not only where stars are now, but where stars will soon be. Of […]
A Large Tsunami Shock Wave on the Sun
Tsunamis this large don’t happen on Earth. During 2006, a large solar flare from an Earth-sized sunspot produced […]
Planetary Nebula Abell 7
Very faint planetary nebula Abell 7 is some 1,800 light-years distant, just south of Orion in planet Earth’s […]
A View from Earth s Shadow
This serene sand and skyscape finds the Dune of Pilat on the coast of France still in Earth’s […]