NasaBot's Space

North America and the Pelican [apod.nasa.gov]

Fans of our fair planet might recognize the outlines of these cosmic clouds.

On the left, bright emission outlined by dark, obscuring dust lanes seems to trace a continental shape, lending the popular name North America Nebula to the emission region cataloged as NGC 7000.

To the right, just off the North America Nebula's east coast, is IC 5070, whose avian profile suggests the Pelican Nebula.

The two bright nebulae are about 1,500 light-years away, part of the same large and complex star forming region, almost as nearby as the better-known Orion Nebula.

At that distance, the 3 degree wide field of view would span 80 light-years.

This careful cosmic portrait uses narrowband images combined to highlight the bright ionization fronts and the characteristic glow from atomic hydrogen, and oxygen gas.

These nebulae can be seen with binoculars from a dark location.

Look northeast of bright star Deneb in Cygnus the Swan, soaring high in the northern summer night sky.

Tarantula Stars R136 from Webb [apod.nasa.gov]

Near the center of a nearby star-forming region lies a massive cluster containing some of the largest and hottest stars known.

Collectively known as star cluster NGC 2070, these stars are part of the vast Tarantula Nebula and were captured in two kinds of infrared light by the new Webb Space Telescope.

The main image shows the group of stars at NGC 2070's center — known as R136 — in near-infrared, light just a bit too red for humans to see.

In contrast, the rollover image captures the cluster center in mid-infrared light, light closer to radio waves.

Since R136's brightest stars emit more of their light in the near infrared, they are much more prominent on that image.

This LMC cluster's massive stars emit particle winds and energetic light that are evaporating the gas cloud from which they formed.

The Webb images, released yesterday, shows details of R136 and its surroundings that have never been seen before, details that are helping humanity to a better understanding of how all stars are born, evolve and die.

Tarantula Stars R136 from Webb [apod.nasa.gov]

Near the center of a nearby star-forming region lies a massive cluster containing some of the largest and hottest stars known.

Collectively known as star cluster NGC 2070, these stars are part of the vast Tarantula Nebula and were captured in two kinds of infrared light by the new Webb Space Telescope.

The main image shows the group of stars at NGC 2070's center — known as R136 — in near-infrared, light just a bit too red for humans to see.

In contrast, the rollover image captures the cluster center in mid-infrared light, light closer to radio waves.

Since R136's brightest stars emit more of their light in the near infrared, they are much more prominent on that image.

This LMC cluster's massive stars emit particle winds and energetic light that are evaporating the gas cloud from which they formed.

The Webb images, released yesterday, shows details of R136 and its surroundings that have never been seen before, details that are helping humanity to better understanding of how all stars are born, evolve and die.

An Iridescent Pileus Cloud over China [apod.nasa.gov]

Yes, but how many dark clouds have a multicolored lining?

Pictured, behind this darker cloud, is a pileus iridescent cloud, a group of water droplets that have a uniformly similar size and so together diffract different colors of sunlight by different amounts.

The featured image was taken last month in Pu'er, Yunnan Province, China.

Also captured were unusual cloud ripples above the pileus cloud.

The formation of a rare pileus cloud capping a common cumulus cloud is an indication that the lower cloud is expanding upward and might well develop into a storm.

Carina Cliffs from the Webb Space Telescope [apod.nasa.gov]

Stars created these cliffs.

Specifically, the destructive winds and energetic light from the stars in the open cluster NGC 3324 eroded away part of a mountain of dark interstellar dust in the northern part of the Carina Nebula.

Several of these stars are visible toward the top of this highly detailed image taken recently by the James Webb Space Telescope, the largest astronomical telescope ever launched.

Webb's large mirror and ability to see dust-piercing infrared light has enabled it to capture fascinating details in the dust, hundreds of previously hidden stars, and even some galaxies far in the distance.

The featured jagged cliffs occur in part of Carina known as the Gabriela Mistral Nebula — because when viewed in another orientation, they appear similar to the facial profile of the famous Chilean poet.

These nebular cliffs occur about 7,600 light years away toward the southern constellation of Carina.

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Sea and Sky Glows over the Oregon Coast [apod.nasa.gov]

Every step caused the sand to light up blue.

That glow was bioluminescence — a blue radiance that also lights the surf in this surreal scene captured in mid-2018 at Meyer's Creek Beach in Oregon, USA.

Volcanic stacks dot the foreground sea, while a thin fog layer scatters light on the horizon.

The rays of light spreading from the left horizon were created by car headlights on the Oregon Coast Highway (US 101), while the orange light on the right horizon emanates from a fishing boat.

Visible far in the distance is the band of our Milky Way Galaxy, appearing to rise from a dark rocky outcrop.

Sixteen images were added together to bring up the background Milky Way and to reduce noise.

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Sun and Moon and ISS [apod.nasa.gov]

On August 25 Sun and Moon could both be seen in planet Earth's daytime skies.

And so could the International Space Station.

The ISS crossed the disk of the waning crescent Moon as seen from Shunyi district, Beijing, China at about 11:02 am local time.

Some 40 kilometers to the southwest, in Fengtai district, the ISS was seen to cross the Sun's disk too.

The solar transit was observed only 29 seconds later.

Both transits are compared in these panels, composed of processed and stacked video frames from the two locations.

The coordinated captures were made with different equipment, but adjusted to show the Sun and Moon at the same scale.

The ISS was at a calculated range of 435 kilometers for the lunar transit and 491 kilometers when passing in front of the Sun.

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M51: The Whirlpool Galaxy [apod.nasa.gov]

Find the Big Dipper and follow the handle away from the dipper's bowl until you get to the last bright star.

Then, just slide your telescope a little south and west and you'll come upon this stunning pair of interacting galaxies, the 51st entry in Charles Messier's famous catalog.

Perhaps the original spiral nebula, the large galaxy with well defined spiral structure is also cataloged as NGC 5194.

Its spiral arms and dust lanes clearly sweep in front of its companion galaxy (left), NGC 5195.

The pair are about 31 million light-years distant and officially lie within the angular boundaries of the small constellation Canes Venatici.

In direct telescopic views, M51 looks faint and fuzzy to the eye.

But this remarkably deep image shows off details of the interacting galaxy's striking colors and galactic tidal debris.

The image includes nearly 90 hours of narrowband data that also reveals a vast glowing cloud of reddish ionized hydrogen gas discovered in the M51 system.

The Tulip and Cygnus X-1 [apod.nasa.gov]

Framing a bright emission region, this telescopic view looks out along the plane of our Milky Way Galaxy toward the nebula rich constellation Cygnus the Swan.

Popularly called the Tulip Nebula, the reddish glowing cloud of interstellar gas and dust is also found in the 1959 catalog by astronomer Stewart Sharpless as Sh2-101.

Nearly 70 light-years across, the complex and beautiful Tulip Nebula blossoms about 8,000 light-years away.

Ultraviolet radiation from young energetic stars at the edge of the Cygnus OB3 association, including O star HDE 227018, ionizes the atoms and powers the emission from the Tulip Nebula.

Also in the field of view is microquasar Cygnus X-1, one of the strongest X-ray sources in planet Earth's sky.

Blasted by powerful jets from a lurking black hole its fainter bluish curved shock front is only just visible though, beyond the cosmic Tulip's petals near the right side of the frame.

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Siccar Point on Mars [apod.nasa.gov]

What created this unusual hill on Mars?

No one is sure.

A good outlook to survey the surrounding area, Siccar Point stands out from its surroundings in Gale Crater.

The unusual mound was visited by the robotic Curiosity rover exploring Mars late last year.

Siccar Point not only has a distinctive shape, it has dark rocks above lighter rocks.

The apparent much younger age of the dark rocks indicates a time-break in the usual geological ordering of rock layers — by a process yet unknown.

The Martian hill is named for Siccar Point on Earth, a place in Scotland itself distinctive as a junction between two different rock layers.

Curiosity continues to explore Gale crater on Mars, looking for clues of ancient life.

Simultaneously, 2300 kilometers away, its sister rover Perseverance explores Jezero crater, there assisted by the flight-capable scout Ingenuity.