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You entered: apod
APOD: 2026 April 17 Б M82: Starburst Galaxy with a Superwind
16.04.2026
Messier 82 is a starburst galaxy with a superwind. In fact, through supernova explosions and powerful winds from massive stars, the burst of star formation in M82 is driving a prodigious outflow. Evidence for the superwind from the galaxy's central regions is clear in the sharp telescopic portrait.
APOD: 2024 November 11 Б The Unusual Tails of Comet Tsuchinshan Atlas
10.11.2024
What created an unusual dark streak in Comet Tsuchinshan-Atlas's tail? Some images of the bright comet during mid-October not only caught its impressively long tail and its thin anti-tail, but a rather unexpected feature: a dark streak in the long tail.
APOD: 2004 August 30- Announcing Comet C 2003 K4 LINEAR
30.08.2004
A comet discovered last year has brightened unexpectedly and now may become visible to the unaided eye within the next month. Designated Comet C/2003 K4 (LINEAR), the comet was discovered in 2003 May by project LINEAR.
APOD: 2023 June 12 Б The Largest Satellites of Earth
11.06.2023
WhatБs that near the Moon? ItБs the International Space Station (ISS). Although the ISS may appear to be physically near the Moon, it is not Б it is physically near the Earth.
APOD: 2023 October 18 Б Dust and the Western Veil Nebula
17.10.2023
It's so big it is easy to miss. The entire Veil Nebula spans six times the diameter of the full moon, but is so dim you need binoculars to see it. The nebula was created about 15,000 years ago when a star in the constellation of the Swan (Cygnus) exploded.
APOD: 2024 January 23 Б Deep Nebulas: From Seagull to California
22.01.2024
How well do you know the night sky? OK, but how well can you identify famous sky objects in a very deep image? Either way, here is a test: see if you can find some well-known night-sky icons in a deep image filled with faint nebulosity.
APOD: 2024 July 16 Б Cometary Globules
15.07.2024
What are these unusual interstellar structures? Bright-rimmed, flowing shapes gather near the center of this rich starfield toward the borders of the nautical southern constellations Pupis and Vela. Composed of interstellar gas and dust, the grouping of light-year sized cometary globules is about 1300 light-years distant.
APOD: 2025 February 2 Б Comet G3 ATLAS Disintegrates
1.02.2025
What's happening to Comet G3 ATLAS? After passing near the Sun in mid-January, the head of the comet has become dimmer and dimmer. By late January, Comet C/2024 G3 (ATLAS) had become a headless wonder -- even though it continued to show impressive tails after sunset in the skies of Earth's Southern Hemisphere.
APOD: 2025 September 16 Б New Comet SWAN25B over Mexico
15.09.2025
A newly discovered comet is already visible with binoculars. The comet, C/2025 R2 (SWAN) and nicknamed SWAN25B, is brightening significantly as it emerges from the Sun's direction and might soon become visible on your smartphone -- if not your eyes.
APOD: 2026 February 8 Б Active Sunspot Region 4366 Crosses the Sun
7.02.2026
An unusually active sunspot region is now crossing the Sun. The region, labelled AR 4366, is much larger than the Earth and has produced several powerful solar flares over the past ten days. In the featured image, the region is marked by large and dark sunspots toward the upper right of the Sun's disk.
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