Mars Reptilian Whale Or Complex Sand Dunes [557 X 1443]

Star cluster NGC 2264, also called the "Christmas tree cluster," is an array of young stars that are between one and five million years old. We know what you're thinking: young?! For a little comparison, the Sun is a middle-aged star about 5 billion years old about 1,000 times older than the stars in this cluster.

This image combines data from Chandra (red, green, and blue) with optical data (green and white) captured by astrophotographer Michael Clow with his telescope in Arizona in November 2024.

X-ray: NASA/CXC/SAO; Optical: Clow, M.; Image Processing: NASA/CXC/SAO/L. Frattare and K. Arcand

By Smithsonian and NASAChandraXray

NGC 6523, Lagoon 

星河坠落 By - 眯眼缄默

M104, Sombrero Galaxy

The Gamma Cygni Nebula Image Credit: Min Xie, Chen Wu, Yizhou Zhang, and Benchu Tang

Clearest Image ever taken of Mars’ North Pole. Yes that’s water ice.

Summer Milky Way at Beverley, Western Australia Nikon d5500 - 50mm - ISO 3200 - f/2.8 - Foreground: 7 x 13s - Sky: 32 x 30s

A picture of the solar eclipse from the ISS

re-edited my pic to reveal more details

Our graceful and faithful Moon

Orion rising over Death Valley // Brett Nickeson

A few easily-spotted nebulae include Barnard's Loop and the Orion Nebula