Aravinda Ravibhanu Sumanarathna

• Senior Research Scientist at Eco Astronomy Inc

Danigala Rock is a unique geological site situated near Kandegama at Polonnaruwa district. The aerial view of the rock shows a semi-circular shape, which was affected by geological weathering. The northwest slope part of Danigala inselberg has interesting petroglyphs discovered in Chithra Lena (7°41'0.44"N | 81°12'45.66"E). These symbols are relati...

It is important to understand Martian samples and their exact habitats, including extreme conditions, to improve future exploration of Mars. The Mars laboratory of Eco Astronomy Inc., represented by the Department of Research and Innovation’s Advances in Multidisciplinary Studies Unit, has developed a standard Mars Regolith Simulant called “HAYA"—E...

During monitoring visits to the beaches of Fnideq, M'Diq, Cabo-Negro, and Martil, two jellyfish species along the Moroccan Northwest Mediterranean coast have been observed. Rhizostoma luteum (Quoy JRC, Gaimard JP. Observations zoologiques faites à bord de l'Astrolabe, en mai 1826, dans le Détroit de Gibraltar. Annales des Sciences Naturelles, 1827)...

The fossils are preserved remains of body parts or traces of ancient organisms. Sri Lanka is a continental island that evolved via unique geological formations, including fossil remains. This island represents many fossils belonging to three different geological periods, for instance: the Jurassic period, Miocene period, and Pleistocene epoch. Most...

The observation of tubular structures within Endurance Crater, Mars, has been reported by Joseph et al (2021a,b) who hypothesized these may be mineralized and fossilized remnants of tube worms that in the ancient and recent past flourished within lakes of water heated by thermal vents. The discovery of what may be spherical hematite in this same vi...

It is important to understand Martian samples and their exact habitats, including extreme conditions, to improve future exploration of Mars. The Mars laboratory of Eco Astronomy Inc., represented by the Department of Research and Innovation’s Advances in Multidisciplinary Studies Unit, has developed a standard Mars Regolith Simulant called “HAYA"—E...

Plasmas up to a kilometer in size, behaving similarly to multicellular organisms have been filmed on 10 separate NASA space shuttle missions, over 200 miles above Earth within the thermosphere. These self-illuminated "plasmas" are attracted to and may "feed on" electromagnetic radiation. They have different morphologies: 1) cone, 2) cloud, 3) donut...

An array of formations resembling the fossilized remains of Ediacaran and Cambrian fauna and other organisms have been observed embedded atop sediments in the dried lake beds of Gale Crater, Mars. Specimens similar in morphology have been found together, or upon adjacent and nearby rocks and mudstone.These include forms morphologically similar to p...

Within the next decade, it is speculated that humans will build habitats on Mars to conduct research and make long-term settlements, including harbor life stations. The practical intention that underpins our research is to test the ability of human's thinking patterns to develop micro-business approach via space-type terrestrial tourism. One such e...

Mars has been subject to repeated waxing and waning episodes of extreme chaotic obliquity (axial tilting) for at least four billion years. Obliquity is currently at 25.19 degrees and has exceeded 80◦. Each time obliquity exceeds 40◦ Martian atmospheric pressures and global temperatures increase causing the melting of glaciers and permafrost and sub...

The habitat selection for a group of R. roxellana at Tangjiahe National Nature Reserve during two seasons of 2010 was analysed with direct observation and vegetation survey. Eleven ecological variables were measured in seventy-five sites using 20 m 20 m plots. The research aims to document the impacts of seasonal variation in R. roxellana habitat s...

Since 1960, Homo sapiens sapiens race has explored Mars and now we are closer to making humans a multiplanetary species. Addressing the next logical step in the series of Mars exploration, it is quite obvious, going to be a permanent settlement of earthen in the Red Planet, where crews that go to Mars can stay and build a new society with it all hi...

Variations in the first Euler angle known as Earth precession phenomenon which is described as a change in the Earth's orbit; found to have strong impact on the climate of Earth. These observations of climate changes were connected with the behavior of the global ice sheets, including their advancing and retreating movements which have been recorde...

The M'Diq beach has seen a successive outbreak's of starting in 2011. During the summer season, which is also Pelagia noctiluca known as the blooming and stranding's jellyfish season has severe impacts on regional activities. For this reason, this research aimed at documenting the mean causes of outbreaks on our coastline. As a result, the simple l...

Natural photographic scenes and the reconstruction of fossil's content as well as other paleontological elements that are part of the paleo-geo-diversity represent an excellent added value for the growth of the paleo-tourism sector in our research area. As result, we focused our effort to create an Augmented Reality application, which aims to synch...

Presentation of the abstract "Last Glacial Maximum, The Flandrian Transgression and The Configuration of Sri Lanka and Its Surroundings"

We studied the habitat selection for two separated groups of Rhinopithecus roxellana in two different National Nature Reserve in Sichuan Province South of China. Our research aimed to document the winter season impact on habitat selection at Tangjiahe and Baihe National Nature Reserve during the Winter seasons of 2010 and 2015. We conducted direct...

Variations of earth precession phenomenon have led to changes in the earth's orbit; due to these variations, the earth's climate found to be strongly impacted. These climate changes observed were connected with the behavior of the global ice sheets, including the spreading and retreating movements recorded. Earth’s climate depends essentially on th...

Danigala Circular Rock (7°40'50.24"N, 81°12'48.32"E), located near Kandegama in the Polonnaruwa District, Sri Lanka, is a distinctive geological formation characterized by its semicircular morphology, shaped by long-term geological processes and weathering. This site lies within a region of exceptional geodiversity, featuring diverse geological and...

Geotourism is 'tourism that focuses on geology and landscape as the basis for providing visitor engagement, learning, and enjoyment'. Geotourism and geo-heritage are relatively new form of tourism with considerable Sri Lanka and global growth potentials. Interest in geotourism is developing at a very rapid rate around the world. It is of great impo...

The exploration of Mars has yielded transformative insights into the planet's geological evolution, driven by high-resolution datasets from rover missions and orbital observations. This comprehensive review synthesizes findings up to 2018, focusing on three fundamental aspects of Martian geology: lithology, stratigraphy, and surface processes. Lith...

The origin of life (abiogenesis) remains a fundamental question in astrobiology, bridging the gap between inorganic chemistry and emergent biological complexity. This review synthesizes cutting-edge research on how planetary environments—ranging from early Earth and Mars to icy moons (e.g., Europa, Enceladus) and exoplanets—govern prebiotic chemica...

Meteorites are fragments of rock or iron that have traveled from outer space, often originating from the asteroid belt situated between Mars and Jupiter. These extraterrestrial bodies endure the harsh journey through Earth’s atmosphere, creating spectacular displays of light before reaching the surface. They are categorized into three main types: s...

This study explores the interdisciplinary convergence of traditional Himalayan architecture (specifically, the pagoda form) and cryospheric engineering to develop a novel thermodynamic and structural model for Ice Stupas—artificial glaciers used for water conservation in high-altitude arid regions. By analyzing the pagoda's tiered geometry, load di...

Archeoastronomy explores the intersection of astronomy, anthropology, and worldviews, focusing on the role of astronomy in past cultures. This study examines archaeological artifacts, including sundials and water clocks from the Anuradhapura period (377 BCE–1017 CE) in Sri Lanka, to evaluate anthropogenic activities related to timekeeping. The rese...

Eco Astronomy represents a pioneering interdisciplinary field that investigates the impact of extreme environmental conditions on the potential for harboring life across the universe. This study extends the conceptual framework of life’s origin, evolution, and sustenance within the cosmos by examining the mechanisms through which "harbor life" — sa...

A controversial theory that suggests an extraterrestrial body crashing to Earth almost 12,800 years ago caused the extinction of many large animals and a probable population decline in early humans is gaining traction from research sites around the world. The Younger Dryas Impact Hypothesis, controversial from the time, it was presented in 2007, pr...

A controversial theory that suggests an extraterrestrial body crashing to Earth almost 12,800 years ago caused the extinction of many large animals and a probable population decline in early humans is gaining traction from research sites around the world. The Younger Dryas Impact Hypothesis, controversial from the time, it was presented in 2007, pr...

සුවිශේෂී භූ විද්‍යාත්මක පසුබිමක් සහිත ශ‍්‍රී ලංකාවේ භූ විද්‍යාත්මක පුරාණ නිර්මාණ පරිසරය ආකීය යුගය (Archean Eon-4000 Mya–2500 Mya) දක්වා විහිදී යයි. නියෝප්‍රොටෙරොසොයික (Neoproterozoic–1000 Mya–541 Mya) වකවානුව තුළ ශ‍්‍රී ලංකාවේ භූ පිහිටීම ආශ‍්‍රිතව ක‍්‍රියාත්මක වූ ද්‍රවමය අවස්ථාවේ වූ ආග්නේය පාෂාණ වල ක‍්‍රියා හා ප‍්‍රතික‍්‍රියා (Igneous processes) හේ...

Sri Lanka’s geological landscape, predominantly composed of Precambrian strata, offers a critical window into the evolution of ancient continental fragments and the dynamics of supercontinent cycles. The island is divided into five major geological units: the Highland Complex, Vijayan Complex, Wanni Complex, Kadugannawa Complex, and Miocene sedimen...

This review explores the profound impact of integrating astronomy through a multidisciplinary approach, bridging science, technology, and society. Central to this discussion is humanity’s enduring aspiration to comprehend the cosmos and define our place within it, whether as solitary beings or alongside potential intelligent life in distant worlds....

The advancements in astronomical technologies, particularly in the domains of Ultra-Low Frequency (ULF) and Extremely Low Frequency (ELF), have transcended their original scientific purposes to address a wide range of industrial and environmental challenges. Technologies such as Charge-Coupled Devices (CCDs) and advanced imaging techniques, initial...

The Sabaragamuwa basin in Sri Lanka represents a critical paleontological and archaeological repository, preserving key evidence of early Homo sapiens cultural artifacts, such as geometric microliths, alongside fossilized flora and fauna that illuminate prehistoric dietary practices. Among these, the "Rathnapura fauna" includes fossilized proboscid...

Developing onshore digital elevation model (DEM) is useful to predict sea level rise, coastal erosion, and tsunami inundation. This study compares historic changes of coastline in Arugam Bay in Sri Lanka from 2003 to 2015 to indicate flooding and elevation profile changes over time. Bathymetric DEMs have been created using Differential Global Posit...

The exploration of Mars has yielded transformative insights into the planet’s geological evolution, driven by high-resolution datasets from rover missions and orbital observations. This comprehensive review synthesizes findings up to 2018, focusing on three fundamental aspects of Martian geology: lithology, stratigraphy, and surface processes. Lith...

Eco Astronomy, a pioneering scientific discipline formally established in 2012 and articulated in 2016 at the Royal Asiatic Society of Sri Lanka, represents a transformative convergence of Astrobiology, paleontology, and petrology. This interdisciplinary framework seeks to elucidate the fundamental prerequisites for life in extreme environments, bo...

Sri Lanka, a biogeographical relic of Gondwanaland, has emerged as a global hotspot of biodiversity and geodiversity, shaped by its prolonged geological isolation and dynamic climatic evolution. The island’s intricate topography, altitudinal gradients, and diverse microclimates have driven extensive speciation processes, fostering high levels of en...

Sri Lanka, a biogeographical relic of Gondwanaland, has emerged as a global hotspot of biodiversity and geodiversity, shaped by its prolonged geological isolation and dynamic climatic evolution. The island’s intricate topography, altitudinal gradients, and diverse microclimates have driven extensive speciation processes, fostering high levels of en...

The Rakwana mountain range, situated along the northern margin of the Sinharaja rainforest, a UNESCO World Heritage Site, represents a significant geodiversity hotspot. Recent excavations of alluvial deposits within the Sabaragamuwa Basin have led to the identification of cave systems within the crystalline limestone (marble) formations of the Pann...

A sufficient knowledge on prehistoric culture and habitat of earliest Homo sapiens (Balangoda man) is available in Batadomba-lena cave, a noticeable rock shelter in lowland rainforest of southwestern Sri Lanka goes upto Pleistocene and Holocene eras. Late Pleistocene inhabitants of Batadombalena cave's foraged for a broad spectrum of plant and main...

Roadside trees are beneficial for providing ecological services, such as heat absorbance, natural air conditioning, and reducing GHG emissions in urban landscapes. This study examines the tree structure, species composition, species diversity, and some field observations (i.e. tree structural defects and disorders) on roadside trees in Colombo City...

Sri Lanka, currently an island in the Indian Ocean, was once part of Gondwanaland during the Middle Jurassic epoch. It separated from the Indian subcontinent during the Late Jurassic and drifted southeast during the Early Miocene, forming the Cauvery Basin, where significant lime mud deposits accumulated. Eustatic changes during the Quaternary peri...

Two species of elephants are traditionally recognized, the African elephant (Loxodontaafricana) and the Asian elephant (Elephas maximus). The Asian Elephant (also recognized as the Indian Elephant) is a large land animal (smaller than the African Elephant) that lives in India, Malaysia, Sumatra, and Sri Lanka. This elephant is used extensively for...

Batadoba–Lena pre historic cave, a significant geological and cultural heritage site in Sri Lanka, presents a unique opportunity for sustainable tourism development through a multidisciplinary approach. This review synthesizes geological, ecological, archaeological, and socio-economic perspectives to assess the cave's potential as a sustainable eco...

Eco Astronomy, a discipline closely aligned with Astrobiology, explores the potential for life under extreme conditions on planetary bodies. By integrating principles from paleontology and petrology, Eco Astronomy seeks to unravel the fundamental conditions necessary for harboring life, both on Earth and beyond. This field, formally introduced in 2...

It is seen that the evolution of Sabaragamuwa Dance has been created due to the promotion of Imitation with Adaptation Motion of the Sri Lankan ‘Vedda’ (ancestors of Sri Lanka). When studying the Paleobiodiversity, Paleoantology and Archaeology related to Sri Lanka, the imitation with adaptation motion has been started in the latter part of Pleisto...

According to solar nebula structured ,our planetary system bear from accretion of the dust particles and planetesimal period ,after that condensation in solar nebula.Thus most of celestial bodies of our planetary system,like planet,natural satellite,comet, meteorite & asteroids exhibit the different kind of planetary habitable. Base on energy sourc...

Amateur observational astronomy is an engaging and limitless pursuit that allows individuals to explore the universe through various observational techniques. It encompasses five primary methods: unaided eye (naked eye) observation, binocular observation, telescope observation, imaging with film and electronic technologies, and astronomical spectro...

The Sabaragamuwa District stands as a critical region in Sri Lanka, recognized for its rich historical and biodiversity significance. This district is a benchmark of cultural evolution, dating back to the Paleo era, and is home to both natural and man-made evidence of its prominence. Historical and Archaeological Insights Research into the geologi...

The Pleistocene is a geological time period that commenced 2.6 million years before present, about 12,000-10,000 years before present. During this period, most parts of the Northern Hemisphere were covered with glaciers, creating a cooler climate. Due to this glacial formation, the main sea level was much lower than today. The low sea levels facili...