Discover what exist in the universe
Historical Estimates of Universe Size The early 20th-century view of the universe was limited, with astronomers picturing it as infinitely old and unchanging, and the Milky Way as the entire universe. Harlow Shapley's work suggested our galaxy stretched 300,000 light years across. Edwin Hubble's observations in the 1920s revealed a […]
Historical Estimates of Universe Size In the early 20th century, the universe was thought to be infinite and unchanging, with Earth at its center. Astronomers like Harlow Shapley believed the Milky Way was essentially "the universe," stretching 300,000 light-years across. Edwin Hubble's 1929 measurements revealed a much larger universe, approximately […]
Asteroids, those celestial travelers, often capture our imagination and scientific curiosity. As we consider their paths and potential impacts on Earth, the intricate dance between these space rocks and our planet becomes a focal point of study. With Asteroid 2025 AB approaching, it offers an opportunity to reflect on how […]
Venus and Saturn Close Approach On January 17 and 18, 2025, Venus and Saturn will be in close conjunction, visible in the southwest sky after sunset. The planets will appear just two degrees apart, with Venus outshining Saturn due to its higher reflectivity. This celestial event offers an excellent opportunity […]
Lunar Cycle and Phases The moon's monthly cycle begins with the New Moon, when it's nearly invisible between Earth and the sun. As it progresses, we see the Waxing Crescent, a thin sliver of moonlight. The First Quarter follows, often mistaken for a "half moon". Next comes the Waxing Gibbous, […]
Current Understanding of the Universe's Size The vastness of the universe challenges scientists striving to measure its scale. While estimates have evolved, they still astound with their magnitude. Our ability to measure this boundless space relies on innovative technologies and theories that aim to define its enigmatic boundaries. The Hubble […]
Formation of Pangea Ultima In about 250 million years, Earth is expected to witness another grand tectonic reunion, leading to the birth of Pangea Ultima. This new supercontinent will likely be as challenging for life as it is intriguing to geologists. The perpetual movement of Earth's tectonic plates drives this […]
Solar Corona Observation Techniques Observing the solar corona presents unique challenges due to the sun's intense brightness. Researchers employ various methods to study this outermost layer of the sun, each with its own advantages and limitations. Total solar eclipses offer rare opportunities to view the corona in detail when the […]
Parker Solar Probe's Mission The Parker Solar Probe, launched by NASA in 2018, ventures closer to the sun than any previous human-made object. Its mission is to unravel solar mysteries, particularly the dynamics of solar flares. Encased in a cutting-edge heat shield, the spacecraft can withstand temperatures nearing 2,500 degrees […]
Thermal Protection System The Parker Solar Probe's Thermal Protection System (TPS) is an engineering marvel crafted from carbon-carbon composite. Sandwiched between two carbon sheets, this material shields against temperatures reaching nearly 2,500 degrees Fahrenheit. Despite its protective capabilities, the TPS remains relatively lightweight at 160 pounds. The sun-facing side features […]
