Browse NASA Astronomy Picture of the Day archive by date and media: Archive Discoveries
Browse the NASA APOD archive without needing the exact date first. Filter by media type and keep moving deeper into older images and videos.
NGC 7331 Close-Up
Big, beautiful spiral galaxy NGC 7331 is often touted as an analog to our own Milky Way . About 50 million light-years distant in the northern constellation Pegasus , NGC 7331 was…
Galaxy NGC 474: Shells and Star Streams
What's happening to galaxy NGC 474? The multiple layers of emission appear strangely complex and unexpected given the relatively featureless appearance of the elliptical galaxy in…
NGC 7635: The Bubble Nebula Expanding
It's the bubble versus the cloud. NGC 7635, the Bubble Nebula , is being pushed out by the stellar wind of massive star BD+602522 , visible in blue toward the right, inside the…
Venus and the Triply Ultraviolet Sun
An unusual type of solar eclipse occurred in 2012. Usually it is the Earth's Moon that eclipses the Sun. That year, most unusually, the planet Venus took a turn. Like a solar…
Earthshadow and the Beehive
The Earth's dark umbral shadow is shaped like a cone extending into space . Of course its circular cross section at the distance of the Moon is more easily seen during a lunar…
Moonrise Eclipse
This atmospheric picture of a distant horizon looks toward the tall Trisul peaks of India's snowy Himalayan mountains. Taken from a remote location on January 31, bright star…
Moonset Eclipse
Near the closest point in its orbit, the second Full Moon of the month occurred on January 31. So did the first Total Lunar Eclipse of 2018, as the Moon slid through planet…
The First Explorer
Sixty years ago, on January 31, 1958, the First Explorer was successfully launched by the Army Ballistic Missile Agency on a Jupiter-C rocket. Inaugurating the era of space…
Venus at Night in Infrared from Akatsuki
Why is Venus so different from Earth? To help find out, Japan launched the robotic Akatsuki spacecraft which entered orbit around Venus late in 2015 after an unplanned five-year…
The Spider and The Fly
Will the spider ever catch the fly? Not if both are large emission nebulas toward the constellation of the Charioteer ( Auriga ). The spider -shaped gas cloud on the left is…
Laguna Starry Sky
Staring toward the heavens , one of the many lagunas in the Atacama Desert salt flat calmly reflects a starry night sky near San Pedro de Atacama, Chile, planet Earth. Cosmic…
Selfie at Vera Rubin Ridge
On sol 1943 of its journey of exploration across the surface of Mars, the Curiosity Rover recorded this selfie at the south rim of Vera Rubin Ridge. Of course a sol is a Martian…
Cartwheel of Fortune
By chance, a collision of two galaxies has created a surprisingly recognizable shape on a cosmic scale, The Cartwheel Galaxy . The Cartwheel is part of a group of galaxies about…
The Tadpoles of IC 410
This telescopic close-up shows off the otherwise faint emission nebula IC 410. It also features two remarkable inhabitants of the cosmic pond of gas and dust below and left of…
Ribbons and Pearls of Spiral Galaxy NGC 1398
Why do some spiral galaxies have a ring around the center? Spiral galaxy NGC 1398 not only has a ring of pearly stars, gas and dust around its center, but a bar of stars and gas…
The Upper Michigan Blizzard of 1938
Yes, but can your blizzard do this? In Upper Michigan 's Storm of the Century in 1938, some snow drifts reached the level of utility poles . Nearly a meter of new and unexpected…
Old Moon in the New Moon's Arms
Also known as the Moon's “ashen glow” or the “Old Moon in the New Moon's arms”, earthshine is earthlight reflected from the Moon's night side. This stunning image of earthshine…
Clouds in the LMC
An alluring sight in southern skies, the Large Magellanic Cloud (LMC) is seen in this deep and detailed telescopic mosaic . Recorded with broadband and narrowband filters, the…
Blue Comet in the Hyades
Stars of the Hyades cluster are scattered through this mosaic spanning over 5 degrees on the sky toward the constellation Taurus. Presently cruising through the Solar System, the…
In the Valley of Orion
This exciting and unfamiliar view of the Orion Nebula is a visualization based on astronomical data and movie rendering techniques. Up close and personal with a famous stellar…
An Elephant's Trunk in Cepheus
With image data from telescopes large and small, this close-up features the dusty Elephant's Trunk Nebula. It winds through the emission nebula and young star cluster complex IC…
Rigel and the Witch Head Nebula
By starlight this eerie visage shines in the dark, a crooked profile evoking its popular name, the Witch Head Nebula . In fact, this entrancing telescopic portrait gives the…
Three Galaxies and a Comet
Diffuse starlight and dark nebulae along the southern Milky Way arc over the horizon and sprawl diagonally through this gorgeous nightscape. The breath-taking mosaic spans a wide…
Launch and Landing
A composite of three consecutive exposures, this night skyscape follows the January 7 launch and first stage landing of a Falcon 9 rocket from a beach on planet Earth's space…
Viewing discoveries from 7 February 2018 through 13 January 2018.