Новости из категории: astronet

APOD: 2020 August 25 Б Visualization: A Black Hole Accretion Disk

Вт, Август 25, 2020 - 8:30

What would it look like to circle a black hole? If the black hole was surrounded by a swirling disk of glowing and accreting gas, then the great gravity of the black hole would deflect light emitted by the disk to make it look very..

APOD: 2020 August 24 Б Crescent Moon HDR

Пн, Август 24, 2020 - 8:30

How come the crescent Moon doesn't look like this? For one reason, because your eyes can't simultaneously discern bright and dark regions like this. Called earthshine or the da Vinci glow...

The Helix Nebula from Blanco and Hubble

Вс, Август 23, 2020 - 8:30

How did a star create the Helix nebula? The shapes of planetary nebula like the Helix are important because they likely hold clues to how stars like the Sun end their lives. Observations...

Yogi And Friends in 3D

Сб, Август 22, 2020 - 8:30

From July of 1997, a ramp from the Pathfinder lander, the Sojourner robot rover, airbags, a couch, Barnacle Bill and Yogi Rock appear together in this 3D stereo view of the surface of Mars. Barnacle Bill is the rock just left of the..

Yogi And Friends in 3D

Сб, Август 22, 2020 - 7:30

From July of 1997, a ramp from the Pathfinder lander, the Sojourner robot rover, airbags, a couch, Barnacle Bill and Yogi Rock appear together in this 3D stereo view of the surface of Mars. Barnacle Bill is the rock just left of the..

Астрономическая неделя с 24 по 30 августа 2020 года

Пт, Август 21, 2020 - 12:25

На данной неделе 23 августа произойдет покрытие Луной (Ф= 0,28+) звезды каппа Девы (4,2m) при видимости на Европейской части страны, а 29..

Unwinding M51

Пт, Август 21, 2020 - 8:30

The arms of a grand design spiral galaxy 60,000 light-years across are unwound in this digital transformation of the magnificent 2005 Hubble Space Telescope portrait of M51. In fact...

Seeing Titan

Чт, Август 20, 2020 - 8:30

Shrouded in a thick atmosphere, Saturn's largest moon Titan really is hard to see. Small particles suspended in the upper atmosphere cause an almost impenetrable haze, strongly scattering light at visible wavelengths and hiding Titan's..

APOD: 2020 August 19 Б The Sun Rotating

Ср, Август 19, 2020 - 7:30

Does the Sun change as it rotates? Yes, and the changes can vary from subtle to dramatic. In the featured time-lapse sequences, our Sun -- as imaged by NASA's Solar Dynamics Observatory -- is shown rotating though an entire month in..

APOD: 2020 August 18 Б TYC 8998 760 1: Multiple Planets around a Sun Like Star

Вт, Август 18, 2020 - 8:30

Do other stars have planets like our Sun? Previous evidence shows that they do, coming mostly from slight shifts in the star's light created by the orbiting planets. Recently, however, and for the first time, a pair of planets has..

APOD: 2020 August 18 Б TYC 8998 760 1: Multiple Planets around a Sun Like Star

Вт, Август 18, 2020 - 8:30

Do other stars have planets like our Sun? Previous evidence shows that they do, coming mostly from slight shifts in the star's light created by the orbiting planets. Recently, however, and for the first time, a pair of planets has..

Perseids Around the Milky Way

Пн, Август 17, 2020 - 7:30

Why would meteor trails appear curved? The arcing effect arises only because the image artificially compresses (nearly) the whole sky into a rectangle. The meteors are from the Perseid Meteor Shower that peaked last week.