Contributor Posts

NASA Astronomy Picture of the Day:

What powers this unusual nebula? CTB-1 is the expanding gas shell that was left when a massive star toward the constellation of Cassiopeia exploded about 10,000 years ago. The star likely detonated when it ran out of elements, near its core, that could create stabilizing pressure with nuclear fusion. The resulting supernova remnant, nicknamed the Medulla Nebula for its brain-like shape, still glows in visible light by the heat generated by its collision with confining interstellar gas. Why the nebula also glows in X-ray light, though, remains a mystery. One hypothesis holds that an energetic pulsar was co-created that powers the nebula with a fast outwardly moving wind. Following this lead, a pulsar has recently been found in radio waves that appears to have been expelled by the supernova explosion at over 1000 kilometers per second. Although the Medulla Nebula appears as large as a full moon, it is so faint that it took 130-hours of exposure with two small telescopes in New Mexico, USA, to create the featured image.

Photo by Russell Croman

Cooking meat on the grill is one of life’s top-tier satisfactions. Not only is it fun and absorbing to do, the results, if you get them right, enhance your day, your week........... Continue reading 

No more the evening napping,
or the crowds of people clapping,
as I left my home on the shore,
of the clear water of Lake Lenore.
(to be continued, perhaps)

"In the Blue Hour, French illustrator and author Isabelle Simler offers a stunning joint celebration of these uncommon blue creatures and the common blue world they inhabit, the Pale Blue Dot we share." ........ Read the full article on Brain Pickings

Photo credit: Calob Photography

NASA Astronomy Picture of the Day:

The jets emanating from Centaurus A are over a million light years long. These jets of streaming plasma, expelled by a giant black hole in the center of this spiral galaxy, light up this composite image of Cen A. Exactly how the central black hole expels infalling matter remains unknown. After clearing the galaxy, however, the jets inflate large radio bubbles that likely glow for millions of years. If energized by a passing gas cloud, the radio bubbles can even light up again after billions of years. X-ray light is depicted in the featured composite image in blue, while microwave light is colored orange. The base of the jet in radio light shows details of the innermost light year of the central jet.

How one man went from attending President Barack Obama’s inauguration to dying in the mob protesting Donald Trump’s election loss during the Capitol insurrection.............. Read the full article at ProPublica

NASA Astronomy Picture of the Day:

This fantastic skyscape lies near the edge of NGC 2174 a star forming region about 6,400 light-years away in the nebula-rich constellation of Orion. It follows mountainous clouds of gas and dust carved by winds and radiation from the region's newborn stars, now found scattered in open star clusters embedded around the center of NGC 2174, off the top of the frame. Though star formation continues within these dusty cosmic clouds they will likely be dispersed by the energetic newborn stars within a few million years. Recorded at infrared wavelengths by the Hubble Space Telescope in 2014, the interstellar scene spans about 6 light-years. Scheduled for launch in 2021, the James Webb Space Telescope is optimized for exploring the Universe at infrared wavelengths.

May I speak freely
about Elf's and Gnome's.
Those of the garden variety,
where they make their homes.

The lost moon,
a void horizon.
An empty sky;
Where's the brightness
to catch my eye?
Come back now.
Return to me,
for in the darkness,
I cannot see.

The sack is empty.
No more your lies.
Leave this place now;
No shameful goodbyes.

NASA Astronomy Picture of the Day:

This shadowy landscape of majestic mountains and icy plains stretches toward the horizon on a small, distant world. It was captured from a range of about 18,000 kilometers when New Horizons looked back toward Pluto, 15 minutes after the spacecraft's closest approach on July 14, 2015. The dramatic, low-angle, near-twilight scene follows rugged mountains formally known as Norgay Montes from foreground left, and Hillary Montes along the horizon, giving way to smooth Sputnik Planum at right. Layers of Pluto's tenuous atmosphere are also revealed in the backlit view. With a strangely familiar appearance, the frigid terrain likely includes ices of nitrogen and carbon monoxide with water-ice mountains rising up to 3,500 meters (11,000 feet). That's comparable in height to the majestic mountains of planet Earth. The Plutonian landscape is 380 kilometers (230 miles) across.

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