Long Shadows of the Montes Caucasus When the Moon
is at its first quarter phase, the Sun rises along the
Montes Caucasus
as seen from the lunar surface

A Solstice Sun Tattoo The word
solstice is from the Latin for Sun and to pause or stand still

Sunset Solstice over Stonehenge Yesterday the Sun reached its southernmost point in planet Earth's sky

Red Sprites and Circular Elves Lightning over Italy What's happening in the sky?

Lightning

Mystery: Little Red Dots in the Early Universe What are these little red dots (LRDs)?

Nobody knows

Unicorn, Fox Fur and Christmas Tree A star forming region
cataloged as NGC 2264,
this beautiful but complex arrangement of interstellar gas and dust is about
2,700 light-years distant in the faint but fanciful constellation
Monoceros, the Unicorn

3I/ATLAS Flyby Attention grabbing interstellar visitor
3I/ATLAS made
its not-so-close flyby of our fair planet on December 19
at a distance of 1

Apollo 17's Moonship Awkward and angular looking,
Apollo 17's
lunar module Challenger
was designed for flight in the near vacuum of space

NGC 1898: Globular Cluster in the Large Magellanic Cloud Jewels don't shine this bright -- only stars do

M1: The Crab Nebula This is the mess that is left when a star explodes

An Artificial Comet Yes, but can your comet tail do this?

No, and what you are seeing is not the
tail of a
comet

HH-222: The Waterfall Nebula What created the Waterfall Nebula?

The origin is still being researched

Auroral Corona Cycle 25 solar maximum
made 2025 a great year for
aurora borealis
(or aurora australis)
on planet Earth

NanoSail-D2 In 2011, on January 20,
NASA's
NanoSail-D2 unfurled a very thin and very reflective
10 square meter sail becoming the first solar sail spacecraft in
low Earth orbit

The Red Rectangle Nebula from Hubble How was the unusual Red Rectangle nebula created?

At the nebula's center is an aging
binary star system
that surely powers the nebula but does not, as yet, explain its colors

Full Moonlight The Full Moon is the brightest lunar phase,
and tonight you can
stand in the light of the first Full Moon of 2026