Discover what exist in the universe
Understanding K2-18b's Atmospheric Composition K2-18b, an exoplanet orbiting a red dwarf star, showcases an atmosphere quite distinct from Earth's. Its composition is primarily hydrogen, with traces of methane and carbon dioxide. Unlike our planet's nitrogen and oxygen-rich atmosphere, K2-18b's hydrogen envelope is thick enough to drastically differ from Earth's atmospheric […]
Detection of Dimethyl Sulfide (DMS) The James Webb Space Telescope (JWST) has revealed intriguing observations suggesting the presence of dimethyl sulfide (DMS) in the atmosphere of exoplanet K2-18b. Using the telescope's Mid-Infrared Instrument (MIRI), scientists have detected this molecule, often linked with biological activity on Earth, presenting an exciting yet […]
Constellations have served as celestial markers for centuries, offering practical assistance and cultural richness. These star patterns have helped humanity understand its place in the universe while weaving stories that span generations. 5. Uses of Constellations Constellations have long served as navigational aids for travelers and mariners. By aligning their […]
Observable Universe and Its Scale The observable universe spans an awe-inspiring 93 billion light-years, equivalent to about 8.8 × 10^23 kilometers. Within this vast expanse lies approximately 3.1 × 10^54 kilograms of matter, with an average density of just a few atoms per cubic meter. Astronomers employ unique units to […]
The Nature of Dark Energy Dark energy, the enigmatic force driving the universe's accelerated expansion, remains one of the greatest mysteries in cosmology. Accounting for approximately 70% of the universe's content, it eludes direct observation and is inferred solely from the universe's behavior. The Lambda Cold Dark Matter (LCDM) model, […]
Identifying Circumpolar Constellations Circumpolar constellations are visible year-round, never setting below the horizon. Two prominent examples are Ursa Major and Cassiopeia. Ursa Major, also known as the Big Dipper, consists of seven stars forming a saucepan-like shape. To find Polaris (the North Star): Cassiopeia displays a distinctive W or M […]
Porphyrion: The Largest Black Hole Jet System The discovery of Porphyrion, a black hole's jet system stretching 23 million light-years, challenges our understanding of cosmic structures. Named after a giant from Greek legend, it spans a length equivalent to 140 Milky Ways lined up. Astronomers at Caltech and Leiden University, […]
Understanding Lunar Gardening Lunar gardening connects Earth and Moon cycles to guide planting practices. The Moon's phases influence soil moisture and plant growth, similar to its effect on tides. From new Moon to full Moon, above-ground plants like watermelons, beans, and corn thrive. As the Moon wanes, root crops such […]
Overview of 2025 Lunar Eclipses On March 13-14, 2025, North America will witness a total lunar eclipse, or blood moon. This occurs when Earth positions itself between the sun and a full moon, casting its shadow on the lunar surface. The moon takes on a reddish hue due to sunlight […]
Full Moon Names and Dates The lunar calendar for 2025 brings a series of captivating Full Moons, each with its unique name and significance: These names, rooted in Native American, Colonial American, and other North American traditions, reflect seasonal changes and natural phenomena. For instance, the Wolf Moon is named […]
