Astronomy Picture of the Day

Astronomy Picture Of the Day (APOD)

Большая группа солнечных пятен AR 9393 Large Sunspot Group AR 9393

The largest sunspot group of the past ten years crossed the surface of the Sun late last month and early this month. The group was designated Active Region 9393 as it was the 9393rd region identified since counting officially began in 1973.

M51: пыль и звезды галактики Водоворот M51: The Whirlpool Galaxy in Dust and Stars

The Whirlpool Galaxy is a classic spiral galaxy. At only 30 million light years distant and fully 60 thousand light years across, M51, also known as NGC 5194, is one of the brightest and most picturesque galaxies on the sky.

"Марс Одиссей" отправляется к Марсу Mars Odyssey Lifts Off for Mars

Next stop: Mars. On Saturday the 2001 Mars Odyssey spacecraft lifted off from Cape Canaveral, Florida on a path to enter orbit around Mars in late October. Pictured above, a Delta II rocket lifted...

Большая корона The Big Corona

Most photographs don't adequately portray the magnificence of the Sun's corona. Seeing the corona first-hand during a total solar eclipse is best. The human eye can adapt to see features and extent that photographic film usually cannot. Welcome, however, to the digital age.

Стерео-Солнце Stereo Sun

This week's stereo offering features the now famous Active Region 9393, the largest sunspot group in the last 10 years. Viewed with red/blue glasses, the stereo pair of images merges into one 3D representation of the Sun with AR9393 above and right of center.

Полярное сияние над Новой Зеландией Aurora Over New Zealand

Last weekend skygazers at middle and high latitudes around the globe were treated to expansive auroral displays as a magnetic storm raged around planet Earth. The storm was triggered by a solar coronal mass ejection associated with the giant sunspot group cataloged as active region number 9393.

Происхождение золота On the Origin of Gold

Where did the gold in your jewelry originate? No one is completely sure. The relative average abundance in our Solar System appears higher than can be made in the early universe, in stars, and even in typical supernova explosions. Some astronomers now

Далекая сверхновая, темная энергия Distant Supernova Dark Energy

Light from a star that exploded over 10 billion light-years away is revealed in the panel at the lower right, a cosmic snapshot of the most distant supernova. The ancient stellar detonation was detected...

Новые звезды, уничтожающие NGC 1748 New Stars Destroying NGC 1748

NGC 1748 cannot contain all the new stars it has formed. The young stars, the most massive of which are bright blue, emit so much energy they are pushing out and dispersing the gas and dust that comprise this star forming nebula.

Полярное сияние над облаками Aurora Over Clouds

Aurorae usually occur high above the clouds. The auroral glow is created when fast-moving particles ejected from the Sun impact air molecules high in the Earth's atmosphere. An oxygen molecule, for example, will glow in a green light when reacquiring an electron lost during a collision with a solar particle.

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