Discover the cosmos!
Each day a different image or photograph of our fascinating universe is
featured, along with a brief explanation written by a professional astronomer.
2024 February 9
When Roses Aren't Red Image Credit &
Copyright: Tommy Lease
(Denver Astronomical Society)
Explanation:
Not all roses are red
of course,
but they can still be very pretty.
Likewise, the beautiful
Rosette
Nebula and other star forming regions are often shown in
astronomical images with a predominately red hue,
in part because the dominant emission in the nebula is
from hydrogen atoms.
Hydrogen's strongest optical emission line, known as H-alpha,
is in the red region of the spectrum.
But the beauty of an emission nebula need not be appreciated
in red light alone.
Other atoms in the nebula are also excited by energetic
starlight and produce narrow emission lines as well.
In this close-up view
of the Rosette Nebula, narrowband images are mapped into broadband
colors to show emission from Sulfur atoms in red, Hydrogen in green, and
Oxygen in blue.
In fact, the
scheme of mapping
these narrow atomic emission lines (SHO) into the broader colors (RGB) is
adopted in many
Hubble images
of emission nebulae.
This image spans about 50 light-years across the center of the
Rosette Nebula.
The nebula lies some 3,000
light-years away
in the constellation Monoceros.
ストリートファイターZERO 3
Street Fighter Alpha 3, known as Street Fighter Zero 3 (ストリートファイターZERO 3 Sutorīto Faitā Zero 3?) in Japan and Asia, is a 1998 2D fighting game by Capcom originally released for the CPS II arcade hardware. It is the third game in the Street Fighter Alpha series, following Street Fighter Alpha: Warriors' Dreams and Street Fighter Alpha 2.
StreetFighterAlpha3
Street Fighter Alpha 3 is one of the arcade games by Capcom that underwent regional censorship. Like Alpha 2, it removed explicit references to Japanese culture in Southeast-Asian releases due to the prevailing anti-Nippon policies in Korea in its time of release. This meant E. Honda's stage was removed entirely and Sodom's stage was modified to have less Nipponese touches. These censorships were removed in home releases.
The game was initially ported in 1998 for the PlayStation. This version of the game had replaced the hit sprites with hit polygons in order to focus more memory on character animations. T. Hawk, Fei Long, and Dee Jay, the remaining "New Challengers" from Super Street Fighter II, who were not in the original arcade version, were added to the roster. Balrog, Juli, and Juni were also added to the immediate roster, after they were given new character portraits and their own storylines. Evil Ryu, Shin Akuma and Guile were also added as secret characters in the World Tour mode, a mode that allows players to customize their chosen character's fighting style. An additional feature in the Japanese version also made use of the PocketStation peripheral, which allows players to build up their character's strength in Pocket Zero (ポケゼロ PokeZero?)
Discover the cosmos!
Each day a different image or photograph of our fascinating universe is
featured, along with a brief explanation written by a professional astronomer.
2012 December 27
Curiosity Rover at Rocknest on Mars Image Credit: NASA,
JPL-Caltech,
MSSS,
MAHLI
Explanation:
What's in this smooth soil on Mars?
In late October, NASA's robotic
Curiosity rover stopped near a place dubbed
Rocknest as it continues to explore
Gale Crater
on Mars.
Rocknest is the group of stones seen near the top left of the
above image -- just to the left of Curiosity's mast.
Of particular interest was the unusually smooth patch of soil named Wind Drift seen to the left of Curiosity, which was likely created by the
Martian wind
blowing fine particles into Rocknest's wake.
The above image shows part of
Mt. Sharp in the background to upper right,
and, oddly, almost the entire rover itself, digitally reconstructed from 55 frames while digitally removing an extended arm.
Curiosity scooped several
sand samples from Wind Drift into its
Chemistry and Mineralogy Experiment (CheMin) and the
Sample Analysis at Mars (SAM) laboratory for a detailed analysis.
Preliminary data from the soil indicates a small amount of one-carbon organic material the origin of which it presently unknown.
Although the
organic signal might be just contaminants from Earth,
the exciting possibility that it could be from Mars itself will remain a focus of
future exploration and research.
Arkeisha Antoinette Knight, known professionally as Kash Doll, is an American rapper and actress from Detroit, Michigan. Signed to Republic Records, she is best known for her singles "For Everybody" (2017) and "Ice Me Out" (2018), the latter of which became the lead single from her debut album Stacked (2019). Kash Doll has collaborated with artists including Meek Mill, Big Sean, Iggy Azalea, DreamDoll and K. Michelle.[1]
Kashdoll is a moniker that gets passed around in real work sex work... slavery.
I really miss her, she mentions me by name in the first song "soundcloud context"
: This is the first line.
See, how the text fits here, also if there is a linebreak at the end? It works nicely.
Great.
: This is the first line.
See, how the text fits here, also if there is a linebreak at the end?
It works nicely.
Explanation: These two global views of Mars
were captured at ultraviolet wavelengths,
beyond the spectrum
visible to human eyes.
Recorded by the
MAVEN spacecraft's
Imaging Ultraviolet Spectrograph
instrument in July 2022 (left) and January 2023,
three otherwise invisible ultraviolet bands are mapped into
red, green, and blue colors.
That color scheme presents the
Red Planet's surface
features in shades of tan and green.
Haze and clouds appear white or blue, while high altitude ozone takes
on a dramatic purple hue.
On the left, Mars' south polar ice cap is in brilliant white
at the bottom but shrinking during
the southern hemisphere's
summer season.
On the right, the northern hemisphere's polar region is seen
shrouded in clouds and atmospheric ozone.
Known to some as the Mars Atmosphere and Volatile EvolutioN spacecraft,
MAVEN has been exploring Mars' tenuous upper atmosphere,
ionosphere, and its interactions with the Sun and solar wind
since 2014.
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Scale model of the
Eiffel tower in
Parc Mini-France
The contract was signed on...
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Curiosity Rover at Rocknest on Mars 
