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by APOD Robot » Sat Oct 05, 2024 4:06 am. M27: Not a Comet. Explanation: While hunting for comets in the skies above 18th century France, astronomer Charles Messier diligently kept a list of the things encountered during his telescopic expeditions that were definitely not comets. This is number 27 on his now famous not-a-comet list.
by APOD Robot » Sat Oct 19, 2024 4:05 am. Comet Tsuchinshan-ATLAS Flys Away. Explanation: These six panels follow daily apparitions of comet C/2023 A3 Tsuchinshan-ATLAS as it moved away from our fair planet during the past week. The images were taken with the same camera and lens at the indicated dates and locations from California, planet Earth.
Re: APOD: NGC 7635: The Bubble Nebula (2024 Oct 30) by Ann » Wed Oct 30, 2024 7:46 am. David Malin once wrote that bubble structures are much less common in the Milky Way than in many smaller galaxies, "because the interstellar material is at the same time both more constrained and more turbulent in our Galaxy, and these delicate structures ...
A new record was found just recently with the discovery of a 23-million light-year long jet pair from a black hole active billions of years ago. Dubbed Porphyrion for a mythological Greek giant, the impressive jets were created by a type of black hole that does not usually create long jets -- one that is busy creating radiation from infalling gas.
by APOD Robot » Mon Oct 21, 2024 4:08 am. Comet Tsuchinshan-ATLAS over California. Explanation: The tails of Comet Tsuchinshan-ATLAS were a sight to behold. Pictured, C/2023 A3 (Tsuchinshanâ ATLAS) was captured near peak impressiveness last week over the Eastern Sierra Mountains in California, USA.
Re: APOD: Supernova Remnant Simeis 147 (2024 Feb 27) Post by Chris Peterson » Tue Feb 27, 2024 10:05 pm Roy wrote: ↑ Tue Feb 27, 2024 8:16 pm All the nebulae are visible because they are ionized gas atoms.
A swirling disk of stars and gas, M106 's appearance is dominated by blue spiral arms and red dust lanes near the nucleus, as shown in the featured image taken from the Kuwait i desert. The core of M106 glows brightly in radio waves and X-rays where twin jets have been found running the length of the galaxy.
by APOD Robot » Sun Oct 13, 2024 4:06 am. Aurora Timelapse Over Italian Alps. Explanation: Did you see last night's aurora? This question was relevant around much of the world a few days ago because a powerful auroral storm became visible unusually far from the Earth's poles.
by APOD Robot » Mon Oct 07, 2024 4:06 am. Explanation: A bright comet is moving into the evening skies. C/2023 A3 (Tsuchinshan–ATLAS) has brightened and even though it is now easily visible to the unaided eye, it is so near to the Sun that it is still difficult to see. Pictured, Comet Tsuchinshan–ATLAS was captured just before sunrise from ...
In this frame from a detailed computer simulation, complex filaments of dark matter, shown in black, are strewn about the universe like spider webs, while the relatively rare clumps of familiar baryon ic matter are colored orange. These simulations are good statistical matches to astronomical observations.