Astronomy Picture of the Day

Astronomy Picture Of the Day (APOD)

IC 4592: отражательная туманность Голубая конская голова APOD: 2023 September 26 Б IC 4592: The Blue Horsehead Reflection Nebula

Do you see the horse's head? What you are seeing is not the famous Horsehead nebula toward Orion, but rather a fainter nebula that only takes on a familiar form with deeper imaging. The main part of the here-imaged molecular cloud complex is reflection nebula IC 4592.

Арп 142: галактика Колибри APOD: 2023 September 25 Б Arp 142: The Hummingbird Galaxy

What's happening to this spiral galaxy? Just a few hundred million years ago, NGC 2936, the upper of the two large galaxies shown at the bottom, was likely a normal spiral galaxy -- spinning, creating stars -- and minding its own business.

Солнечное затмение с огненным кольцом на рассвете APOD: 2023 September 24 Б A Ring of Fire Sunrise Solar Eclipse

What's rising above the horizon behind those clouds? It's the Sun. Most sunrises don't look like this, though, because most sunrises don't include the Moon. In the early morning of 2013 May 10, however, from Western Australia, the Moon was between the Earth and the rising Sun.

Аналемма после полудня Afternoon Analemma

An analemma is that figure-8 curve you get when you mark the position of the Sun at the same time each day for one year. To make this one, a 4x5 pinhole camera was set up looking north in southern New Zealand skies.

Космос в отражениях Cosmos in Reflection

During the day, over 12,000 large mirrors reflect sunlight at the 100-megawatt, molten-salt, solar thermal power plant at the western edge of the Gobi desert near Dunhuang, Gansu Province, China. Individual mirror panels turn to track the sun like sunflowers.

Прикоснувшись к Бенну Tagging Bennu

The OSIRIS-REx spacecraft's arm reached out and touched asteroid 101955 Bennu on October 20, 2020, after a careful approach to the small, near-Earth asteroid's boulder-strewn surface. Dubbed a Touch-And-Go (TAG) sampling event...

На далекой экзопланете обнаружен метан APOD: 2023 September 20 Б Methane Discovered on Distant Exoplanet

Where else might life exist? One of humanity's great outstanding questions, locating planets where extrasolar life might survive took a step forward in 2019 with the discovery of a significant amount of water vapor in the atmosphere of distant exoplanet K2-18b.

HH 211: джеты от формирующейся звезды APOD: 2023 September 19 Б HH 211: Jets from a Forming Star

Do stars always create jets as they form? No one is sure. As a gas cloud gravitationally contracts, it forms a disk that can spin too fast to continue contracting into a protostar. Theorists hypothesize that this spin can be reduced by expelling jets.

Красный спрайт и дерево APOD: 2023 September 18 Б The Red Sprite and the Tree

The sprite and tree could hardly be more different. To start, the red sprite is an unusual form of lightning, while the tree is a common plant. The sprite is far away -- high in Earth's atmosphere, while the tree is nearby -- only about a football field away.

Лунные горы и огненное кольцо APOD: 2023 September 17 Б Moon Mountains Magnified during Ring of Fire Eclipse

What are those dark streaks in this composite image of a solar eclipse? They are reversed shadows of mountains at the edge of the Moon. The center image, captured from Xiamen, China, has the Moon's center directly in front of the Sun's center.

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