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.
The Double Cluster in Perseus
This pretty starfield spans about three full moons (1.5 degrees) across the heroic northern constellation of Perseus . It holds the famous pair of open star clusters , h and Chi…
Fireworks vs Supermoon
On July 4, an almost Full Moon rose in planet Earth's evening skies. Also known as a Buck Moon, the full lunar phase ( full on July 3 at 11:39 UTC) was near perigee, the closest…
A Map of the Observable Universe
What if you could see out to the edge of the observable universe ? You would see galaxies, galaxies, galaxies, and then, well, quasar s, which are the bright centers of distant…
Aurora over Icelandic Waterfall
It seemed like the sky exploded. The original idea was to photograph an aurora over a waterfall. After waiting for hours under opaque clouds , though, hope was running out. Others…
Venus in Ultraviolet 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…
Milky Way and Aurora over Antarctica
It was one of the better skies of this long night. In parts of Antarctica , not only is it winter, but the Sun can spend weeks below the horizon. At China 's Zhongshan Station ,…
Three Galaxies in Draco
This tantalizing trio of galaxies sometimes called the Draco Group, is located in the northern constellation of (you guessed it) Draco, the Dragon . From left to right are face-on…
Orbits of Potentially Hazardous Asteroids
Are asteroids dangerous? Some are, but the likelihood of a dangerous asteroid striking the Earth during any given year is low. Because some past mass extinction event s have been…
A Message from the Gravitational Universe
Monitoring 68 pulsar s with very large radio telescope s, the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has uncovered evidence for the gravitational…
Messier 24: Sagittarius Star Cloud
Unlike most entries in Charles Messier's famous catalog of deep sky objects, M24 is not a bright galaxy, star cluster, or nebula. It's a gap in nearby, obscuring interstellar dust…
MAVEN's Ultraviolet Mars
These two global views of Mars were captured at ultraviolet wavelengths, beyond the spectrum visible to human eyes. Recorded by the MAVEN spacecraft's Imaging Ultraviolet…
The Belt of Venus over Mount Everest
You've surely seen it, but you might not have noticed it. During a cloudless twilight , just before sunrise or after sunset , part of the atmosphere above the horizon appears…
Lightning on Jupiter
Does lightning occur only on Earth? No. Spacecraft in our Solar System have detected lightning on other planets, including Mars , Jupiter and Saturn , and lightning is likely on…
3D Ingenuity
The multicolor, stereo imaging Mastcam-Z on the Perseverance rover zoomed in to capture this 3D close-up (get out your red/blue glasses) of the Mars Ingenuity helicopter on…
Giant Galaxies in Pavo
Over 500,000 light years across, NGC 6872 (top right) is a truly enormous barred spiral galaxy , at least 5 times the size of our own very large Milky Way. The appearance of this…
Stars and Dust across Corona Australis
Cosmic dust clouds cross a rich field of stars in this telescopic vista near the northern boundary of Corona Australis , the Southern Crown. Part of a sprawling molecular cloud…
Three Sun Paths
Does the Sun follow the same path every day? No . The Sun's path changes during the year, tracing a longer route during the summer than the winter. Pictured here , the Sun's arc…
The Ñandú in the Milky Way
Have you seen the bird in the Milky Way? Beyond the man in the Moon , the night sky is filled with stories, and cultures throughout history have projected some of their most…
The Busy Center of the Lagoon Nebula
The center of the Lagoon Nebula is a whirlwind of spectacular star formation. Visible near the image center, at least two long funnel-shaped clouds, each roughly half a light-year…
Saturn's Northern Hexagon
Why would clouds form a hexagon on Saturn? Nobody is sure. Originally discovered during the Voyager flybys of Saturn in the 1980s, nobody has ever seen anything like it anywhere…
Planet Earth at Night II
Recorded during 2017, timelapse sequences from the International Space Station are compiled in this serene video of planet Earth at Night. Fans of low Earth orbit can start by…
Sunset to Sunrise over the Baltic Sea
This serene view from the coast of Sweden looks across the Baltic sea and compresses time, presenting the passage of one night in a single photograph. From sunset to sunrise,…
M15: Dense Globular Star Cluster
Messier 15 is an immense swarm of over 100,000 stars. A 13 billion year old relic of the early formative years of our galaxy it's one of about 170 globular star clusters that…
The Shark Nebula
There is no sea on Earth large enough to contain the Shark nebula. This predator apparition poses us no danger as it is composed only of interstellar gas and dust . Dark dust like…
Viewing discoveries from 7 July 2023 through 14 June 2023.