Astronomy Picture of the Day: M31: The Andromeda Galaxy

What is the nearest major galaxy to our own Milky Way Galaxy? Andromeda. In fact, our Galaxy is thought to look much like Andromeda.

Astronomy Picture of the Day: Comet Wirtanen Passes by the Earth

Today Comet Wirtanen passes by the Earth. The kilometer-sized dirty snowball orbits the Sun every 5.4 years, ranging as far out as Jupiter and as close in as the Earth.

Astronomy Picture of the Day: Geminids and Friends

From a radiant in the constellation of the Twins, the annual Geminid meteor shower rained down on our fair planet this week.

Astronomy Picture of the Day: Swimming on Jupiter

On October 29, the Juno spacecraft once again dove near the turbulent Jovian cloud tops.

Astronomy Picture of the Day: 3D Bennu

Put on your red/blue glasses and float next to asteroid 101955 Bennu.

Astronomy Picture of the Day: M43: Orion Falls

Is there a waterfall in Orion? No, but some of the dust in M43 appears similar to a waterfall on Earth.

Astronomy Picture of the Day: Arp 188 and the Tadpole's Tail

Why does this galaxy have such a long tail? In this stunning vista, based on image data from the Hubble Legacy Archive, distant galaxies form a dramatic backdrop for disrupted spiral galaxy Arp 188, the Tadpole Galaxy.

Astronomy Picture of the Day: Sound and Light Captured by Mars InSight

Your arm on Mars has unusual powers. For one thing it is nearly 2 meters long, has a scoop and grapple built into its hand, and has a camera built into its forearm.

Astronomy Picture of the Day: Aurora Shimmer, Meteor Flash

Some night skies are serene and passive -- others shimmer and flash. The later, in the form of auroras and meteors, haunted skies over the island of Kvaløya, near Tromsø Norway on 2009 December 13.

Astronomy Picture of the Day: Tiny Planet Timelapse

You can pack a lot of sky watching into 30 seconds on this tiny planet. Of course, the full spherical image timelapse video was recorded on planet Earth, from Grande Pines Observatory outside Pinehurst, North Carolina.

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