Astronomy Picture of the Day

Astronomy Picture Of the Day (APOD)

Грозовой воротник над Уругваем A Roll Cloud Over Uruguay

What kind of cloud is this? A type of arcus cloud called a roll cloud. These rare long clouds may form near advancing cold fronts. In particular, a downdraft from an advancing storm front can cause moist warm air to rise, cool below its dew point, and so form a cloud.

Скопление галактик в Печи The Fornax Cluster of Galaxies

Named for the southern constellation toward which most of its galaxies can be found, the Fornax Cluster is one of the closest clusters of galaxies. About 62 million light-years away, it is almost...

NGC 6888: туманность Полумесяц NGC 6888: The Crescent Nebula

NGC 6888, also known as the Crescent Nebula, is a cosmic bubble about 25 light-years across, blown by winds from its central, bright, massive star. This sharp telescopic portrait uses narrow band image data that isolates light from hydrogen and oxygen atoms in the wind-blown nebula.

Плутон ночью Pluto at Night

The night side of Pluto spans this shadowy scene. The spacebased view with the Sun behind the distant world was captured by New Horizons last July. The spacecraft was at a range of over 21,000 kilometers, about 19 minutes after its closest approach.

Туманность Конская голова в инфракрасном свете от телескопа имени Хаббла The Horsehead Nebula in Infrared from Hubble

While drifting through the cosmos, a magnificent interstellar dust cloud became sculpted by stellar winds and radiation to assume a recognizable shape. Fittingly named the Horsehead Nebula, it is embedded in the vast and complex Orion Nebula (M42).

Ночь на Венере в инфракрасном свете от аппарата "Акацуки" Night on Venus in Infrared from Orbiting Akatsuki

Why is Venus so different from Earth? To help find out, Japan launched the robotic Akatsuki spacecraft which entered orbit around Venus late last year after an unplanned five-year adventure around the inner Solar System.

Сверхновая и цефеиды в спиральной галактике UGC 9391 The Supernova and Cepheids of Spiral Galaxy UGC 9391

What can this galaxy tell us about the expansion rate of the universe? Perhaps a lot because UGC 9391, featured, not only contains Cepheid variable stars (red circles) but also a recent Type Ia supernova (blue X).

Комета PanSTARRS и туманность Улитка Comet PanSTARRS and the Helix Nebula

It's rare that such different objects are imaged so close together. Such an occasion is occurring now, though, and was captured two days ago in combined parallel exposures from the Canary Islands of Spain.

Тень Сервейора-1 The Shadow of Surveyor 1

Fifty years ago, Surveyor 1 reached the Moon. Launched on May 30, 1966 and landed on June 2, 1966 with the Moon at full phase it became the first US spacecraft to make a soft landing on another world.

NGC 4631: галактика Кит. NGC 4631: The Whale Galaxy

NGC 4631 is a big beautiful spiral galaxy. Seen edge-on, it lies only 25 million light-years away in the well-trained northern constellation Canes Venatici. The galaxy's slightly distorted wedge shape suggests to some a cosmic herring and to others its popular moniker, The Whale Galaxy.

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