Understanding Nebulae: From Kant's Proposal to Hubble's Discoveries
In 1755, Kant proposed that nebulae are island universes, sparking a debate on their nature within or outside our galaxy. Shapley and Curtis debated whether spiral nebulae were rotating systems like our Milky Way. Hubble's observations of the Andromeda Nebula led to the realization that it is a gala
10 views • 166 slides
Exploring Dark Sector Particles at Fermilab PIP-II and Beyond
The DAMSA experiment at Fermilab PIP-II aims to search for Dark Sector Particles (DSP) using a high-intensity proton beam facility. By focusing on Axion-like particles and employing specific physics strategies, DAMSA seeks to penetrate the low mass regime and discover rare particles in unexplored ki
6 views • 22 slides
The History of the Earth
The Earth, 4.5 billion years old, emerged from a nebula in the Milky Way Galaxy. Gravity led to the condensation of a rotating cloud into the Sun and planets. Over time, lumps collided, forming gas giants, rocky planets, and asteroids. The outer planets attracted hydrogen and helium, while the inner
2 views • 45 slides
Geology of the Earth
The evolution of elements in the universe began with the Big Bang, leading to the formation of hydrogen, helium, and heavier elements through stellar processes like fusion and supernovae. Our solar system formed 4.5 billion years ago from a nebula containing a variety of elements. These elements pla
4 views • 44 slides
Advanced Technology in Dark Matter Research
Cutting-edge technologies such as multi-source TPB evaporation, LAr TPC, and DarkSide-20k TPC are being utilized in the study of dark matter. These technologies aim to enhance detection sensitivity and uniformity in film coatings, crucial for advancing our understanding of mysterious dark matter par
1 views • 20 slides
Dark Romanticism: Exploring a Gothic Literary Sub-genre
Overview of Dark Romanticism, a literary sub-genre emerging from the Transcendental movement but notably less optimistic. Explore its characteristics focusing on the tragic, characters prone to sin and self-destruction, and nature depicted as dark and mysterious. Learn about notable authors like Edg
0 views • 11 slides
Search for Dark Photons Utilizing Advanced Germanium Detectors at University of South Dakota
Research at the University of South Dakota under the collaboration PIRE-GEMADARC focuses on developing advanced germanium detectors with low energy thresholds for detecting low mass dark photons. The study aims to optimize event detection using new Ge detectors with internal charge amplification. Th
0 views • 16 slides
Laplace's Nebular Hypothesis: Origin of the Solar System
French mathematician Laplace proposed the nebular hypothesis in 1796, refining Kant's gaseous hypothesis. Laplace asserted a hot rotating gaseous nebula cooled gradually, contracting and increasing rotation speed. Eventually, centrifugal forces led to the formation of ring structures, contrasting wi
0 views • 6 slides
Exploring Quantum Field Theory for Gravity and Dark Energy
Delve into the fascinating realms of quantum field theory as applied to gravity and dark energy, unraveling the mysteries of the universe through concepts like vacuum energy, cosmological constants, and dark energy models. Discover the interconnected web of theories concerning the early universe, in
0 views • 27 slides
Stunning Images of Nebulas and Galaxies from Schools Observatory
Explore mesmerizing images of Triangulum Galaxy, Bubble Nebula, Crab Nebula, Eskimo Nebula, Dumbbell Nebula, and Eagle Nebula captured by Schools Observatory. Each image showcases the beauty and intricacy of space, inviting viewers to marvel at the wonders of our universe. Immerse yourself in the co
0 views • 7 slides
Unveiling Dark Matter: An Exploration Beyond the Standard Model
Delve into the intriguing realm of dark matter through observed anomalies, a new theory introduction, and collider signatures. Uncover evidence of dark matter's existence through phenomena such as the bullet cluster, weak gravitational lensing, and unexplained astrophysics anomalies. Join the quest
2 views • 43 slides
Cutting-Edge Dark Matter Search with MAGIS-100 Gradiometers
Cutting-edge dark matter search using the MAGIS-100 instrument with three atom sources is discussed in detail. The configurations, interferometer phases, and data analysis techniques are explored to maximize the efficiency of detecting dark matter signals. The study also delves into exploiting corre
1 views • 10 slides
Observatory News December 2019: Lunar and Dark Sky Observing Sessions Schedule
In December 2019, the observatory presents a schedule of lunar and dark sky observing sessions. The sessions include Lunar Sessions on December 6th, 7th, January 3rd, and 4th, as well as Dark Sky Sessions on December 20th, 21st, 23rd, 27th, 28th, 30th, and January 3rd. It is advised to check their w
1 views • 14 slides
Dark Side of the Afterglow: Complications in Dark Matter and Rare Events Searches
Exploring the challenges in detecting dark matter and rare events due to energy accumulation, excitation clustering, and avalanche relaxation events. Discusses issues such as low-energy background, ionization load on detectors, dual-phase detectors, universal scenarios of energy accumulation, and en
0 views • 15 slides
Exploring IC 5067: The Pelican Nebula and Herbig-Haro Objects
Delve into the beauty and mysteries of IC 5067, the Pelican Nebula, located in the Cygnus constellation. Discover its unique features, including emission nebula jets emitted by Herbig-Haro object 555. Follow the imaging process using a Meade LX200 telescope and ST-9XE camera. Uncover the challenges
0 views • 11 slides
Unveiling Dark Matter Mysteries Through Dark Photons
Delve into the exploration of dark matter through the lens of dark photons in the galactic center and detectors. Uncover the enigmatic nature of dark matter, its interactions, existing constraints, and our model with fermionic dark matter and a dark photon mediator. Discover strategies to evade cons
0 views • 18 slides
Limits on Dark Energy Using Atom Interferometry - UC Berkeley Study
Research conducted by Paul Hamilton Müller's group at the University of California, Berkeley, focuses on using atom interferometry to explore dark energy. The study delves into screened scalar fields as dark energy, future reach with atom interferometry, known unknowns related to dark energy densit
0 views • 39 slides
Exploring Neutralino Dark Matter Mass Limits
Hajime Fukuda, along with researchers Shirai and Luo, conducted a study on the maximum mass of Neutralino dark matter particles. They investigated coannihilation effects and how colored sparticles can enhance LSP annihilation. The study delves into the implications for TeV-scale supersymmetry models
0 views • 39 slides
Exploring the Fascinating World of Geology and Earth Sciences
Delve into the diverse field of geology, covering topics such as physical and historical geology, geochronology, mineralogy, petrology, and more. Learn about the solar nebula hypothesis and the Earth's lithosphere, hydrosphere, atmosphere, and biosphere. Discover the composition of Earth's atmospher
0 views • 12 slides
Exploring Dark Matter in Neutron Stars
Investigate the interaction of dark matter within neutron stars, comprising approximately 25% of the universe's total matter. The nature of dark matter assumptions, its distribution within neutron stars based on fermionic or bosonic properties, and the implications for self-interacting fermionic and
0 views • 22 slides
Topological Quintessence: Anomalous Cosmic Anisotropies and Dark Flow Directions
The consistency of Cold Dark Matter (CDM) with observational data has improved over the past decade, but tensions remain with various cosmic anomalies such as preferred anisotropy axes and dark flow directions. Topological Quintessence, a physical mechanism proposed by L. Perivolaropoulos and collab
0 views • 26 slides
The Prevalence and Implications of Sharp Outer Edge of Disks in Preplanetary Nebulae
Recognizable preplanetary nebulae typically exhibit bipolar structures with an opaque disk that contains a density discontinuity at a certain radius. These disks, when appropriately tilted, can block light from the rear lobe of the nebula, leading to the observation of a sharp outer boundary. Studie
0 views • 17 slides
Searching for Dark Photon Dark Matter with Cosmic Ray Antideuterons
Exploring the use of cosmic ray antideuterons for dark matter detection is a promising avenue in astrophysics. Antideuteron searches offer a low-background environment, making them ideal for detecting certain types of dark matter particles. Unlike antiproton searches, which face significant backgrou
0 views • 30 slides
Exploring Light and Dark Themes in Steinbeck's Novella
Delve into the symbolism of light and dark in John Steinbeck's novella, analyzing how they are used to represent characters and themes. Understand the significance of characters associated with light and darkness, and explore the societal implications of these contrasts. Practice writing paragraphs
0 views • 4 slides
Cadence for Supernovae in LSST and Dark Energy Hubble Diagrams
This content discusses the cadence for supernovae observations in the Large Synoptic Survey Telescope (LSST) and presents Hubble diagrams related to Supernovae and Dark Energy research. The images and descriptions focus on cosmological aspects, distance moduli, observational strategies, and constrai
0 views • 21 slides
Journey Through Earth's Formation and Evolution
Explore the origins of the Earth through the Big Bang Theory, Nebula Theory, Iron Catastrophe, and Formation of the Moon. Learn about Earth's layers, Pangea supercontinent, and the fascinating processes that shaped our planet over billions of years.
0 views • 7 slides
Academic Journey in High Energy Physics: Exploring Dark Matter Production in the Early Universe
Mathieu Gross embarks on a Ph.D. journey supervised by Yann Mambrini, focusing on gravitational production of dark matter in the early universe. His academic path includes studies at Ecole Polytechnique, with a Master's in theoretical physics and research on reheating and early universe dynamics. De
0 views • 5 slides
Hypotheses on the Origin of Earth and Earth's Formation
Various materialist hypotheses proposed by scientists such as Kant, Laplace, Schmidt, and Fesenkov regarding the origin of Earth and the solar system. These hypotheses suggest different processes, including the formation from primary dusty matter, hot nebula, interstellar meteorite dust, and gas-dus
0 views • 16 slides
Future Prospects in Dark Matter Research at Fermilab
Exploring new avenues in the realm of dark matter research, Fermilab stands at the forefront with potential upgrades to their detectors, such as the LZ and PICO-X. The presentation delves into the scientific criteria influencing the choice of detectors, the pursuit of understanding dark matter and d
0 views • 6 slides
The Complicated Formation of Earth's Water: A Detailed Overview
Jun Wu and colleagues at Arizona State University have developed a comprehensive model to explain the origin of Earth's water through stages such as planetary accretion, core formation, and interactions with the solar nebula. By tracing the isotopic composition of hydrogen, they explore how water so
0 views • 7 slides
Understanding Photosynthesis: Role of NADP and Division into Light and Dark Stages
In photosynthesis, NADP plays a crucial role in carrying hydrogen into the dark stage for carbon dioxide reduction. The process is divided into light and dark stages where different components like chlorophyll, chloroplasts, and electron transfer mechanisms are involved. This division ensures effici
0 views • 50 slides
Exploring the Mysteries of Dark Matter and SuperWIMPs
Dark matter, detected only gravitationally, poses enigmatic characteristics and poses challenges in direct detection. Scientists search for interactions with particles, explore hypothetical undetectable forms, and consider production mechanisms. SuperWIMPs like NLSP and NLK decay into Dark Matter, k
0 views • 16 slides
Unveiling Dark Nebulae and Stellar Formation in Space
Dark Nebulae like the Coalsack Nebula and Snake Nebula are dense interstellar clouds where light cannot pass through. Comprised of tiny dust particles coated in frozen gases, they serve as precursors to stellar nurseries, where protostars begin to form and evolve. Learn about these enigmatic cosmic
0 views • 11 slides
Exploring Dark Atom Effects on Structure Formation in the Universe
Overwhelming evidence points towards the existence of dark matter in the universe, with various theoretical models such as OHe atoms and Glashow's EIMP model proposed to explain its nature. Dark OHe atoms, consisting of 2 charged particles bound with primordial He nuclei, offer a unique perspective
1 views • 8 slides
Dark Matter Search at Terascale Meeting in Strasbourg
Doojin Kim presents research on non-relativistic dark matter search, focusing on weakly interacting massive particles (WIMPs) and generic boosted dark matter (BDM) signatures at the Terascale Meeting in Strasbourg. The study explores various scenarios and production models for detecting elusive dark
0 views • 24 slides
Revealing the Dark Matter Profile of the Milky Way
Xiaowei Ou and collaborators aim to infer the dark matter profile of the Milky Way by measuring its circular velocity curve. By utilizing stellar tracers and data-driven models for precise distances, they seek to improve our understanding of dark matter distribution in our galaxy. Their research inv
0 views • 54 slides
Incredible Images Captured by the Hubble Space Telescope
The Hubble Space Telescope, launched in 1990, is the first of the four Great Observatories. It has captured breathtaking images of celestial wonders including the Cat's Eye Nebula and two galaxies colliding. The telescope's remarkable capabilities are showcased in these mesmerizing visuals, demonstr
0 views • 10 slides
Helix Nebula Science Cloud Project Overview
Helix Nebula Science Cloud project, funded by H2020, involves a Joint Pre-Commercial Procurement by various procurers like CERN and CNRS. The project phases include preparation, analysis, and pilot platform development. Contractors like RHEA and T-SYSTEMS are involved in providing cloud solutions. I
0 views • 10 slides
Studying Wolf-Rayet Stars: The Spectroscopic and Visual Orbit of WR 138
Wolf-Rayet (WR) stars are evolved, massive stars with their outer hydrogen envelopes stripped away, leading to strong stellar winds. Understanding these nitrogen-rich, carbon-rich, and oxygen-rich WR stars is crucial in unraveling their formation and contribution to nebula creation. This research de
0 views • 10 slides
Journey of a Star: Stellar Evolution Explained
Explore the stages of stellar evolution, from the birth of a protostar in a nebula to the dramatic transformations leading to the formation of red giants, white dwarfs, and black dwarfs. Understand phenomena like gravitational collapse, temperature changes, radiative processes, and the Chandrasekhar
0 views • 7 slides