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.
Manicouagan Impact Crater from Space
Orbiting 400 kilometers above Quebec, Canada, planet Earth, the International Space Station Expedition 59 crew captured this snapshot of the broad St. Lawrence River and curiously…
M78 from the Euclid Space Telescope
Star formation can be messy. To help find out just how messy, ESA 's new Sun-orbiting Euclid telescope recently captured the most detailed image ever of the bright star forming…
Unraveling NGC 3169
Spiral galaxy NGC 3169 looks to be unraveling like a ball of cosmic yarn. It lies some 70 million light-years away, south of bright star Regulus toward the faint constellation…
Green Aurora over Sweden
It was bright and green and stretched across the sky. This striking aurora display was captured in 2016 just outside of Östersund , Sweden . Six photographic fields were merged to…
CG4: The Globule and the Galaxy
Can a gas cloud eat a galaxy? It's not even close. The “claw” of this odd looking “creature” in the featured photo is a gas cloud known as a cometary globule . This globule,…
Aurora Dome Sky
It seemed like night, but part of the sky glowed purple. It was the now famous night of May 10, 2024, when people over much of the world reported beautiful aurora-filled skies .…
Jupiter Diving
Take this simulated plunge and dive into the upper atmosphere of Jupiter, the Solar System's ruling gas giant. The awesome animation is based on image data from JunoCam, and the…
North Celestial Aurora
Graceful star trail arcs reflect planet Earth's daily rotation in this colorful night skyscape. To create the timelapse composite, on May 12 consecutive exposures were recorded…
Aurora Banks Peninsula
This well-composed composite panoramic view looks due south from Banks Peninsula near Christchurch on New Zealand's South Island. The base of a tower-like rocky sea stack is awash…
Aurora Georgia
A familiar sight from Georgia, USA, the Moon sets near the western horizon in this rural night skyscape. Captured on May 10 before local midnight, the image overexposes the Moon's…
AR 3664 at the Sun's Edge
What did the monster active region that created the recent auroras look like when at the Sun's edge? There, AR 3664 better showed its 3D structure. Pictured, a large multi-pronged…
The 37 Cluster
For the mostly harmless denizens of planet Earth, the brighter stars of open cluster NGC 2169 seem to form a cosmic 37 . Did you expect 42 ? From our perspective, the improbable…
AR 3664 on a Setting Sun
It was larger than the Earth. It was so big you could actually see it on the Sun's surface without magnification. It contained powerful and tangled magnetic fields as well as…
Red Aurora over Poland
Northern lights don't usually reach this far south. Magnetic chaos in the Sun's huge Active Region 3664 , however, produced a surface explosion that sent a burst of electrons,…
AR 3664: Giant Sunspot Group
Right now, one of the largest sunspot groups in recent history is crossing the Sun. Active Region 3664 is not only big -- it's violent, throwing off clouds of particles into the…
Simulation: Two Black Holes Merge
Relax and watch two black holes merge. Inspired by the first direct detection of gravitational waves in 2015, this simulation plays in slow motion but would take about one third…
The Galaxy, the Jet, and a Famous Black Hole
Bright elliptical galaxy Messier 87 (M87) is home to the supermassive black hole captured in 2017 by planet Earth's Event Horizon Telescope in the first ever image of a black…
Visualization: A Black Hole Accretion Disk
What would it look like to circle a black hole? If the black hole was surrounded by a swirling disk of glowing and accreting gas, then the great gravity of the black hole would…
Black Hole Accreting with Jet
What happens when a black hole devours a star? Many details remain unknown, but observations are providing new clues. In 2014, a powerful explosion was recorded by the…
A Total Solar Eclipse from Sliver to Ring
This is how the Sun disappeared from the daytime sky last month. The featured time-lapse video was created from stills taken from Mountain View, Arkansas, USA on 2024 April 8.…
A Black Hole Disrupts a Passing Star
What happens to a star that goes near a black hole? If the star directly impacts a massive black hole , then the star falls in completely -- and everything vanishes. More likely ,…
3 ATs
Despite their resemblance to R2D2 , these three are not the droids you're looking for. Instead, the enclosures house 1.8 meter Auxiliary Telescopes (ATs) at Paranal Observatory in…
Temperatures on Exoplanet WASP-43b
A mere 280 light-years from Earth , tidally locked, Jupiter-sized exoplanet WASP-43b orbits its parent star once every 0.8 Earth days. That puts it about 2 million kilometers…
M100: A Grand Design Spiral Galaxy
Majestic on a truly cosmic scale, M100 is appropriately known as a grand design spiral galaxy. The large galaxy of over 100 billion stars has well-defined spiral arms, similar to…
Viewing discoveries from 25 May 2024 through 2 May 2024.