"Solar Flare"
Courtesy: Pixabay
White Space Ship and Brown Planet
Courtesy: SpaceX
The universe as seen with the eROSITA X-ray telescope
As eROSITA scans the sky, the energy of the collected photons is measured with an accuracy ranging from 2% – 6%.
To generate this image, in which the whole sky is projected onto an ellipse (so-called Aitoff projection) with the center of the Milky Way in the middle and the body of our Galaxy running horizontally, photons have been color-coded according to their energy (red for energies 0.3-0.6 keV, green for 0.6-1 keV, blue for 1-2.3 keV).
The red diffuse glow away from the galactic plane is the emission of the hot gas in the vicinity of the Solar System (the Local Bubble). Along the plane itself, dust and gas absorb the lowest energy X-ray photons, so that only high-energy emitting sources can be seen, and their color appears blue in the image.
The hotter gas close to the Galactic center, shown in green and yellow, carries imprinted the history of the most energetic processes in the life of the Milky Way, such as supernova explosions, driving fountains of gas out of the plane, and, possibly, past outburst from the now dormant supermassive black hole in the center of the Milky Way.
Piercing through this turbulent, hot diffuse medium, are hundreds of thousands of X-ray sources, which appear mostly white in the image, and uniformly distributed over the sky. Among them, distant active galactic nuclei are visible as point sources, while clusters of galaxies reveal themselves as extended X-ray nebulosities.
In total, about one million X-ray sources have been detected in this image.
Image credit: Jeremy Sanders, Hermann Brunner & the eSASS team / Max Planck Institute for Extraterrestrial Physics / Eugene Churazov & Marat Gilfanov, IKI.
Wavelength mosaic image,
Webb focuses on the Orion Nebula and its stars.
Credit: NASA / ESA / CSA
Orion Nebula
New James Webb Space Telescope images of the Orion Nebula uncover a plethora of new details in the vast star-forming region.
Credit: NASA / ESA / CSA
The galaxy group Pandora’s Cluster sits in front of a cosmic background brimming with deep space galaxies.
Credit: NASA / ESA / CSA / I. Labbe (Swinburne University of Technology) / R. Bezanson (University of Pittsburgh) / A. Pagan (STScI)
Helium stars in a neighboring galaxy...
Source: www.newscientist.com
Brown Dwarf !
NOIRLab/NSF/AURA/P. Marenfeld/Acknowledgement: William Pendrill
OTD in 1995,
NASA - National Aeronautics and Space Administration’s Astronomy Picture of the Day made its first post !
With a new image each day, its archive is now the largest collection of annotated astronomical images on the internet.
Do you have a favorite post? Check them all out here: https://apod.nasa.gov/
SpaceX !
And on June 6, the Dragon 2 fleet's cumulative time in space surpassed the Space Shuttle fleet's time with 1,324 total days in orbit!
The artistic concept of Kepler-186f is the result of scientists and artists collaborating to help imagine the appearance of these distant worlds.
Credit: NASA Ames/SETI Institute/JPL-CalTech.
Red Qwarf ( M Dwarf) Stars
Credit: Pixabay/CC0 Public Domain
WASP-18 b Illustration
WASP-18 b, seen in an artist concept, is a gas giant exoplanet 10 times more massive than Jupiter that orbits its star in just 23 hours. Researchers used NASA’s James Webb Space Telescope to study the planet as it moved behind its star. Temperatures there reach 5,000 degrees Fahrenheit (2,700 C).
Scientists identified water vapor in the atmosphere of WASP-18 b, and made a temperature map of the planet as it slipped behind, and reappeared from, its star. This event is known as a secondary eclipse. Scientists can read the combined light from star and planet, then refine the measurements from just the star as the planet moves behind it.
The same side, known as the dayside, of WASP-18 b always faces the star, just as the same side of the Moon always faces Earth. The temperature, or brightness, map shows a huge change in temperature – up to 1,000 degrees – from the hottest point facing the star to the terminator, where day and night sides of the tidally-locked planet meet in permanent twilight.
Credit: NASA/JPL-Caltech (K. Miller/IPAC)
The Sombrero Galaxy, also known as Messier 104 or M104, is a stunning spiral galaxy located approximately 28 million light-years away from Earth in the constellation Virgo. Its distinctive appearance has earned it the nickname “Sombrero” due to its resemblance to a Mexican hat. With its prominent dust lane and a bright central bulge, this galaxy stands out as a captivating celestial wonder.
Photo: NASA/JPL-Caltech and The Hubble Heritage Team (STScI/AURA)