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Astronomy Picture Of the Day (APOD)
APOD: 2025 June 11 Б 25 Brightest Stars in the Night Sky
11.06.2025
Do you know the names of some of the brightest stars? It's likely that you do, even though some bright stars have names so old they date back to near the beginning of written language.
APOD: 2025 June 10 Б Enceladus in True Color
10.06.2025
Do oceans under the ice of Saturn's moon Enceladus contain life? A reason to think so involves long features -- some dubbed tiger stripes -- that are known to be spewing ice from the moon's icy interior into space.
APOD: 2025 June 9 Б Between Scylla and Charybdis: A Double Cosmic Discovery
9.06.2025
Can you identify this celestial object? Likely not Б because this is a discovery image. Massive stars forge heavy elements in their cores and, after a few million years, end their lives in powerful supernova explosions. These remnants cool relatively quickly and fade, making them difficult to detect.
APOD: 2025 June 8 Б Facing NGC 3344
8.06.2025
From our vantage point in the Milky Way Galaxy, we see NGC 3344 face-on. Nearly 40,000 light-years across, the big, beautiful spiral galaxy is located just 20 million light-years away in the constellation of Leo Minor. This multi-color Hubble Space Telescope close-up of NGC 3344 includes remarkable details from near infrared to ultraviolet wavelengths.
Perseverance Selfie with Ingenuity
7.06.2025
On the Mars rover's mission Sol 46 or Earth date April 6, 2021, Perseverance held out a robotic arm to take its first selfie on Mars. The WATSON camera...
NGC 6302: The Butterfly Nebula
6.06.2025
The bright clusters and nebulae of planet Earth's night sky are often given the names of flowers or insects, and its whopping 3 light-year wingspan, NGC 6302 is no exception. With an estimated...
Savudrija Star Trails
5.06.2025
Savudrija lighthouse shines along the coast near the northern end of the Istrian peninsula in this well-composed night skyscape. A navigational aid for sailors on the Adriatic Sea, the historic lighthouse was constructed in the early 19th century.
APOD: 2025 June 4 Б A Milky Road to the Rubin Observatory
4.06.2025
Is the sky the same every night? No -- the night sky changes every night in many ways. To better explore how the night sky changes, the USA's NSF and DOE commissioned the Vera C. Rubin Observatory in Cerro PachцЁn, Chile.
APOD: 2025 June 3 Б Rainbow Airglow over the Azores
3.06.2025
Why would the sky glow like a giant repeating rainbow? Airglow. Now, air glows all of the time, but it is usually hard to see. A disturbance however -- like an approaching storm -- may cause noticeable rippling in the Earth's atmosphere.
APOD: 2025 June 2 Б Veil Nebula: Wisps of an Ancient Supernova
2.06.2025
Wisps like this are all that remain visible of a Milky Way star. About 7,000 years ago that star exploded in a supernova, leaving the Veil Nebula. At the time, the expanding cloud was likely as bright as a crescent Moon, remaining visible for weeks to people living at the dawn of recorded history.
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