RCW 86: Historical Supernova Remnant

2026-07-24 Chinese astronomers

In 185 AD, Chinese astronomers recorded the appearance of a new star in the Nanmen asterism. That part of the sky is identified with part of the southern constellation Centaurus on modern star charts. In fact, the new star was reported to be ...

The Large Magellanic Cloud

2026-07-23 Monica Mesa Text: Cecilia Chirenti (NASA GSFC, UMCP, CRESST II)

Have you ever seen another galaxy with your own eyes? The featured image shows the Large Magellanic Cloud (LMC), one of the closest neighbors of our Milky Way. If you are anywhere south of latitude 20° N (but the further south, the better), ...

The Corona Australis Molecular Cloud...

2026-07-22

The Southern Crown (Corona Australis) dazzles with young and ancient celestial jewels. The Corona Australis Cloud is a collage of reflection and emission nebulae on the left of today’s image. At 430 light years away, this cloud is one of the ...

Turtle Rock on Mars

2026-07-21

Is this a fossilized turtle on Mars? No. Although resembling a large Earth tortoise, this is a layered rock outcrop on Mars that is estimated to span about 15 meters, making it much larger than turtles on Earth. NASA’s robotic Curiosity rover ...

NGC 3576: The Statue of Liberty Nebula

2026-07-20 Logan Carpenter

What's happening in the Statue of Liberty nebula? Bright stars and interesting molecules are forming and being liberated. The complex nebula resides in the star forming region called RCW 57, and besides the iconic monument, to some looks ...

Flying Saucer Crash Lands in Utah Desert

2026-07-19

A flying saucer from outer space crash-landed in the Utah desert after being tracked by radar and chased by helicopters. The year was 2004, and no space aliens were involved. The saucer, pictured here, was the Genesis sample return capsule, ...

Shadow and Rainbow

2026-07-18

At sunset, an alignment of rainbow and mountain shadow was captured in this remarkable snapshot. The stunning view was recorded from a fire lookout on Smith Peak in the Plumas National Forest near Portola, California on July 13. Still, near ...

The Dust Trail of Comet Tempel 2

2026-07-17 Dan Bartlett

Comet 10P/Tempel 2 orbits the Sun once every 5.4 years. Currently visible in binoculars or small telescopes toward the constellation Capricornus, the periodic comet is captured in this sharp telescopic image from July 11 sporting a bright nuclear ...

NGC 300: A Cosmic Gemstone with Stars...

2026-07-16 Team Ciel Austral Text: Cecilia Chirenti (NASA GSFC, UMCP, CRESST II)

This sparkling, colorful gemstone is a spiral galaxy, NGC 300. It is one of the closest spiral galaxies to Earth, only about 6 million light-years away. But does it really look like this? Here is a more standard portrait of it. This ...

Red Sprites in the Tatacoa Desert

2026-07-15 Mario Vargas Text: Keighley Rockcliffe (NASA GSFC, UMBC CSST, CRESST II)

Is there an angry Sith using force lightning in the Tatacoa Desert? This is not science fiction, but a red sprite with multiple streamers! Ordinary lightning occurs when thundercloud particles collide, lose their electrons, and build up negative ...