Astronomy Picture of the Day: Total Solar Eclipse Shadow from a Balloon

Where were you during the Great American Eclipse of 2017?

Astronomy Picture of the Day: Fire on Earth

Sometimes, regions of planet Earth light up with fire.

Astronomy Picture of the Day: Stripping ESO 137-001

Spiral galaxy ESO 137-001 hurtles through massive galaxy cluster Abell 3627 some 220 million light years away.

Astronomy Picture of the Day: Messier 20 and 21

The beautiful Trifid Nebula, also known as Messier 20, is easy to find with a small telescope in the nebula rich constellation Sagittarius.

Astronomy Picture of the Day: Comet, Heart and Soul

The greenish coma of comet 21P/Giacobini-Zinner stands out at the left of this telephoto skyscape spanning over 10 degrees toward the northern constellations Cassiopeia and Perseus.

Astronomy Picture of the Day: Asteroid Ryugu from Hayabusa2

This big space diamond has an estimated value of over 80 billion dollars.

Astronomy Picture of the Day: Glowing Elements in the Soul Nebula

Stars are forming in the Soul of the Queen of Aethopia.

Astronomy Picture of the Day: Active Prominences on a Quiet Sun

Why is the Sun so quiet? As the Sun enters into a period of time known as a Solar Minimum, it is, as expected, showing fewer sunspots and active regions than usual.

Astronomy Picture of the Day: Asperitas Clouds Over New Zealand

What kind of clouds are these? Although their cause is presently unknown, such unusual atmospheric structures, as menacing as they might seem, do not appear to be harbingers of meteorological doom.

Astronomy Picture of the Day: Seeing Titan

Shrouded in a thick atmosphere, Saturn's largest moon Titan really is hard to see.

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