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Astronomy Picture of the Day
Updated: 11 hours 19 min ago

Mt. Etna Lava Plume

Tue, 02/05/2017 - 12:00

Mt. Etna Lava Plume   Mt. Etna Lava Plume


A Split Ion Tail for Comet Lovejoy E4

Mon, 01/05/2017 - 10:00

What's happened to Comet Lovejoy? What's happened to Comet Lovejoy?


A White Battle in the Black Sea

Sun, 30/04/2017 - 08:00

Trillions have died in the Earth's seas. Trillions have died in the Earth's seas.


The Holographic Principle

Sat, 29/04/2017 - 06:00

Is this picture worth a thousand words?  Is this picture worth a thousand words?


Between the Rings

Fri, 28/04/2017 - 17:00

Between the Rings Between the Rings


NGC 4302 and NGC 4298

Thu, 27/04/2017 - 15:00

NGC 4302 and NGC 4298 NGC 4302 and NGC 4298


Asteroid 2014 JO25

Wed, 26/04/2017 - 13:00

A day before its closest approach, asteroid 2014 JO25 A day before its closest approach, asteroid 2014 JO25


The Red Spider Planetary Nebula

Tue, 25/04/2017 - 11:00

Oh what a Oh what a


Night Glows

Mon, 24/04/2017 - 09:00

What glows in the night? What glows in the night?


Two Million Stars on the Move

Sun, 23/04/2017 - 07:00

If you could watch the night sky for one million years -- how would it change? If you could watch the night sky for one million years -- how would it change?


Life Enabling Plumes above Enceladus

Sat, 22/04/2017 - 18:00

Life Enabling Plumes above Enceladus  Life Enabling Plumes above Enceladus


Luminous Salar de Uyuni

Fri, 21/04/2017 - 16:00

A scene in high contrast this thoughtful night skyscape is A scene in high contrast this thoughtful night skyscape is


Earth Shadow over Damavand

Thu, 20/04/2017 - 14:00

Through crystal clear skies this beautiful panorama follows the curve of Through crystal clear skies this beautiful panorama follows the curve of


Moons and Jupiter

Wed, 19/04/2017 - 12:00

On April 10, a Full Moon and Jupiter shared this telephoto field of view. On April 10, a Full Moon and Jupiter shared this telephoto field of view.


Leo Trio

Tue, 18/04/2017 - 10:00

This group is popular in the northern spring. This group is popular in the northern spring.


Man, Dog, Sun

Mon, 17/04/2017 - 08:00

This was supposed to be a shot of trees in front of a setting Sun. This was supposed to be a shot of trees in front of a setting Sun.


Galaxy Cluster Gas Creates Hole in Microwave Background

Sun, 16/04/2017 - 06:00

Why would this cluster of galaxy punch a hole in the cosmic microwave background (CMB)? Why would this cluster of galaxy punch a hole in the cosmic microwave background (CMB)?


Comet Hale Bopp Over Val Parola Pass

Sat, 15/04/2017 - 17:00

Comet Hale Bopp Over Val Parola Pass Comet Hale Bopp Over Val Parola Pass


Zeta Oph: Runaway Star

Fri, 14/04/2017 - 15:00

Like a ship plowing through cosmic seas, Like a ship plowing through cosmic seas,


Castle Eye View

Thu, 13/04/2017 - 13:00

The best known asterism in northern skies, The Big Dipper is The best known asterism in northern skies, The Big Dipper is