- October 6, 2025This ESA/Webb Picture of the Month shows eight stunning examples of gravitational lensing. Gravitational lensing, which was first predicted by…
- October 5, 2025NGC 5248 (also known as Caldwell 45) is a compact intermediate spiral galaxy in the constellation Boötes. Its velocity with…
- October 4, 2025NGC 7380 is a young open cluster of stars in the northern circumpolar constellation of Cepheus, discovered by Caroline Herschel…
- October 3, 2025NGC 1365, also known as the Fornax Propeller Galaxy or the Great Barred Spiral Galaxy, is a double-barred spiral galaxy…
- October 2, 2025The Triangulum Galaxy is a spiral galaxy 2.73 million light-years (ly) from Earth in the constellation Triangulum. It is catalogued as…
- October 1, 2025Ten thousand years ago, before the dawn of recorded human history, a new light would suddenly have appeared in the…
- September 30, 2025It may look like these comets are racing, but they are not. Comets C/2025 K1 ATLAS (left) and C/2025 R2…
- September 29, 2025Stars of all ages are on display in today’s NASA/ESA Hubble Space Telescope Picture of the Week. This sparkling spiral…
- September 28, 2025SNR G65.3+5.7 is a large, faint supernova remnant in the constellation Cygnus, noted for its extensive, diffuse filamentary structure and…
- September 27, 2025The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebulain the Milky Way situated…
- September 26, 2025Comet C/2025 R2 (SWAN) sports a long ion tail extending diagonally across this almost 7 degree wide telescopic field of…
- September 25, 2025The Sculptor Galaxy (also known as the Silver Coin Galaxy, Silver Dollar Galaxy, NGC 253, or Caldwell 65) is an…
- September 23, 2025Estimates made from distance, brightness and standard solar models had given one star in the open cluster Pismis 24 over…
- September 22, 2025Today’s NASA/ESA Hubble Space Telescope Picture of the Week features a galaxy that’s hard to categorise. The galaxy in question…
- September 21, 2025NGC 5248 (also known as Caldwell 45) is a compact intermediate spiral galaxy in the constellation Boötes. Its velocity with…
- September 20, 2025NGC 5907 (also known as NGC 5906, Knife Edge Galaxy, or Splinter Galaxy) is a spiral galaxy located approximately 46.5…
- September 19, 2025A study in contrasts, this colorful cosmic skyscape features stars, dust, and glowing gas in the vicinity of NGC 6914.…
- September 18, 2025A new visitor from the outer Solar System, comet C/2025 R2 (SWAN) also known as SWAN25B was only discovered late…
- September 17, 202518th-century astronomer Charles Messier cataloged only two of them: the bright Lagoon Nebula (M8) at the bottom, and the colorful…
- September 16, 2025Sh 2-185 is an H II region centered on the massive star system Gamma Cassiopeiae (γ Cas) in the northern…
- September 15, 2025What lurks behind the dense, dusty clouds of this galactic neighbour? There lies the star-powered heart of the galaxy Messier…
- September 14, 2025The Helix Nebula (also known as NGC 7293 or Caldwell 63) is a planetary nebula(PN) located in the constellation Aquarius.…
- September 13, 2025VdB 134 is a reflection nebula visible in the constellation of Cygnus. The nebula reflects the light of the star…
- September 12, 2025NGC 4631 (also known as the Whale Galaxy or Caldwell 32) is a barred spiral galaxy in the constellation Canes…
- September 11, 2025The dark, inner shadow of planet Earth is called the umbra. Shaped like a cone extending into space, it has…
- September 10, 2025It is one of the largest nebulas on the sky -- why isn't it better known? Roughly the same angular…
- September 9, 2025For this new Picture of the Month feature, the NASA/ESA/CSA James Webb Space Telescope has provided a fantastic new view…
- September 8, 2025This new NASA/ESA Hubble Space Telescope Picture of the Week features a cloudy starscape from an impressive star cluster. This…
- September 7, 2025RCW 100, also catalogued as the “Fine Ring Nebula” or Shapley 1, is an elegant planetary nebula situated in the southern constellation…
- September 6, 2025The image shows, in detail, the impact craters Copernicus (93 km x 3.8 km) and Eratosthenes (59 km x 3.6…
- September 5, 2025Messier 106 (also known as NGC 4258) is an intermediate spiral galaxy in the constellation Canes Venatici. It was discovered…
- September 4, 2025Magnificent spiral galaxy NGC 4565 is viewed edge-on from planet Earth. Also known as the Needle Galaxy for its narrow…
- September 3, 2025This supernova remnant surrounds Circinus X-1, an X-ray emitting neutron star and the companion star it orbits. The image, from…
- September 2, 2025The Horsehead Nebula is one of the most famous nebulae on the sky. It is visible as the dark indentation…
- September 1, 2025For this new Picture of the Month feature, the NASA/ESA/CSA James Webb Space Telescope has provided a fantastic new view…
- August 31, 2025Dubbed the Pillow Nebula and the Flying Carpet Nebula, NGC 7027 is one of the smallest, brightest, and most unusually…
- August 30, 2025IC 2944, also known as the Running Chicken Nebula, the Lambda Centauri Nebula or the λ Centauri Nebula, is an…
- August 29, 2025The diffuse hydrogen-alpha glow of emission region Sh2-27 fills this cosmic scene. The field of view spans nearly 3 degrees…
- August 28, 2025This well-composed telescopic field of view covers over a Full Moon on the sky toward the high-flying constellation Pegasus. Of…
- August 27, 2025To see more stars and faint nebulosity in the Pleiades star cluster (M45), long exposures are made. Many times, less…
- August 26, 2025NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II regionin the northern…
- August 25, 2025Today’s NASA/ESA Hubble Space Telescope Picture of the Week features a galaxy whose asymmetric appearance may be the result of…
- August 24, 2025At the core of the Crab Nebula lies a city-sized, magnetized neutron star spinning 30 times a second. Known as…
- August 23, 2025On the nights of August 22–23, the sky will host a rare Black Moon, an event that occurs only once…
- August 22, 2025This colorful telescopic view towards the musical northern constellation Lyra reveals the faint outer halos and brighter central ring-shaped region…
- August 21, 2025The Eagle Nebula (catalogued as Messier 16 or M16, and as NGC 6611, and also known as the Star Queen…
- August 20, 2025Over 500,000 light years across, NGC 6872 (bottom left) is a truly enormous barred spiral galaxy. At least 5 times…
- August 19, 2025A gorgeous spiral some 100 million light-years distant, NGC 1309 lies on the banks of the constellation of the River…
- August 18, 2025Today’s NASA/ESA Hubble Space Telescope Picture of the Week offers a closeup of a nearby spiral galaxy. The subject is…
- August 17, 2025Although their cause is presently unknown, such unusual atmospheric structures, as menacing as they might seem, do not appear to…
- August 16, 2025NGC 2403 (also known as Caldwell 7) is an intermediate spiral galaxy in the constellation Camelopardalis. It is an outlying…
- August 15, 2025This image shows the region of the well-known Markarian’s Chain, a visually striking alignment of galaxies located in the constellation…
- August 14, 2025The Sculptor Galaxy (also known as the Silver Coin Galaxy, Silver Dollar Galaxy, NGC 253, or Caldwell 65) is an…
- August 13, 2025Trapezium: four bright stars, that can be found near the center of this sharp cosmic portrait. Gathered within a region…
- August 12, 2025This stunning new mosaic of images from the NASA/ESA/CSA James Webb Space Telescope showcases the nearby star-forming cluster, NGC 1333.…
- August 11, 2025This NASA/ESA Hubble Space Telescope Picture of the Week zooms in on the feathery spiral arms of the galaxyNGC 45,…
- August 10, 2025IC 4592 (also known as the Blue Horsehead Nebula) is a reflection nebula in the constellation of Scorpius that is…
- August 9, 2025Discovered in 2022 by amateur astronomers, the faint arcs -- dubbed SDSO 1 -- span nearly the same angular size…
- August 8, 2025Today’s Picture of the Week is reminiscent of the 3D images that you require flimsy paper red and cyan glasses…
- August 7, 2025This stunning starfield spans about three full moons (1.5 degrees) across the heroic northern constellation of Perseus. It holds the…