Новости из категории: astronet

Active Prominences on a Quiet Sun

Пн, Август 20, 2018 - 8:30

Why is the Sun so quiet? As the Sun enters into a period of time known as a Solar Minimum, it is, as expected, showing fewer sunspots and active regions than usual. The quietness is somewhat unsettling, though, as so far this year, most..

Asperitas Clouds Over New Zealand

Вс, Август 19, 2018 - 8:30

What kind of clouds are these? Although their cause is presently unknown, such unusual atmospheric structures, as menacing as they might seem, do not appear to be harbingers of meteorological doom. Formally recognized as a distinct

Seeing Titan

Сб, Август 18, 2018 - 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..

Perseid Fireball and Persistent Train

Пт, Август 17, 2018 - 7:30

Before local midnight on August 12, this brilliant Perseid meteor flashed above the Poloniny Dark Sky Park, Slovakia, planet Earth. Streaking beside the summer Milky Way, its initial color is likely due to the shower meteor's..

Астрономическая неделя с 20 по 26 августа 2018 года

Пт, Август 17, 2018 - 7:17

На данной неделе Луна (Ф= 0,8+) пройдет близ Сатурна, а долгопериодические переменные звезды X Единорога, R Дракона и U Геркулеса достигнут..

Parker vs Perseid

Чт, Август 16, 2018 - 8:30

The brief flash of a bright Perseid meteor streaks across the upper right in this composited series of exposures made early Sunday morning near the peak of the annual Perseid meteor shower.

Launch of the Parker Solar Probe

Ср, Август 15, 2018 - 7:30

When is the best time to launch a probe to the Sun? The now historic answer -- which is not a joke because this really happened this past weekend -- was at night. Night, not only...

M86 in the Central Virgo Cluster

Вт, Август 14, 2018 - 7:30

Is there a bridge of gas connecting these two great galaxies? Quite possibly, but it is hard to be sure. M86 on the upper left is a giant elliptical galaxy near the center of the nearby Virgo Cluster of galaxies.

The Pencil Nebula in Red and Blue

Пн, Август 13, 2018 - 8:30

This shock wave plows through interstellar space at over 500,000 kilometers per hour. Near the top and moving up in this sharply detailed color composite, thin, bright, braided filaments are actually long ripples in a cosmic sheet of..

Meteor before Galaxy

Вс, Август 12, 2018 - 8:30

What's that green streak in front of the Andromeda galaxy? A meteor. While photographing the Andromeda galaxy in 2016, near the peak of the Perseid Meteor Shower, a sand-sized rock from deep space crossed right in front of our

Moon, Mars, and Milky Way

Сб, Август 11, 2018 - 8:30

Just two weeks ago, dark skies over the desert in northern Iran held this alluring celestial vista. The dramatic digital mosaic finds the Moon and Mars alongside the Milky Way's dusty rifts, stars, and nebulae.

Spiral Galaxy NGC 6744

Пт, Август 10, 2018 - 8:30

Beautiful spiral galaxy NGC 6744 is nearly 175,000 light-years across, larger than our own Milky Way. It lies some 30 million light-years distant in the southern constellation Pavo and appears as only a faint, extended object in small..