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Category: Top Stories

Top Stories

History, Naming, and Discovery of Europa: Jupiter’s Mysterious Icy Moon

noor-e-aishaJuly 29, 2025

Europa, along with Jupiter’s three other large moons—Io, Ganymede, and Callisto—was discovered by Galileo Galilei on 8 January 1610, and possibly independently by Simon Marius. On 7 January, Galileo observed Io and Europa together using a 20×-magnification refracting telescope at the University of Padua. However, the low resolution of the telescope could not distinguish the […]

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Ganymede: Largest Moon, Magnetic Field, Subsurface Ocean Facts

noor-e-aishaJuly 22, 2025

Ganymede is Jupiter’s largest moon and the biggest moon in the entire solar system, even surpassing the planet Mercury in size. With a diameter of approximately 5,260 kilometers, Ganymede is larger than Mercury. It is the only known moon with its own magnetic field, which creates auroras at its poles. Ganymede also has a thin […]

The Mysterious Planet Vulcan: Myth, Discovery Claims, and Disproof Explained

noor-e-aishaJuly 21, 2025

Vulcan was a proposed planet that some pre-20th-century astronomers believed existed in an orbit between Mercury and the Sun. Speculation about intermercurial bodies—objects orbiting inside Mercury’s path—dates back to the early 17th century. Although the planet was never confirmed, it was seriously considered due to unexplained anomalies in Mercury’s orbit. Early Observations and Hypotheses In […]

Theia and the Giant Impact Hypothesis: Origins of Earth’s Moon

noor-e-aishaJuly 18, 2025

In Greek mythology, Theia was one of the Titans, the sister and later wife of Hyperion, and the mother of Selene, the goddess of the Moon. This mythological narrative interestingly parallels the scientific theory regarding the planet Theia’s role in the Moon’s formation. According to the giant impact hypothesis, Theia was a Mars-sized planetary body […]

Evidence and Search for Planet Nine: A Hypothetical Giant

noor-e-aishaJuly 16, 2025

In January 2016, astronomers Konstantin Batygin and Mike Brown from the California Institute of Technology (Caltech) announced research suggesting the existence of a planet about 1.5 times the size of Earth in the outer solar system. This theoretical world, dubbed “Planet Nine,” has not been directly observed, but its possible presence is inferred from the […]

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Makemake: Dwarf Planet Discovery, Orbit, Surface, and Mythological Origins

noor-e-aishaJuly 15, 2025

Makemake is a dwarf planet located in the Kuiper Belt, a distant region of the Solar System beyond the orbit of Neptune. It was discovered in 2005 by a team of astronomers at the Palomar Observatory in California. At the time of its discovery, it was informally nicknamed the “Easter Bunny” because it was first […]

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Pluto: Facts About the Dwarf Planet in the Kuiper Belt

noor-e-aishaJuly 14, 2025

Pluto resides in the Kuiper Belt, a region of icy bodies beyond Neptune. It is smaller than Earth’s Moon and is the largest known Kuiper Belt object by volume, though it is less massive than Eris. Pluto was reclassified as a dwarf planet following the International Astronomical Union’s (IAU) definition of a planet, which includes […]

Oort Cloud Explained: Distance, Formation, Structure, and Comet Origins

noor-e-aishaJuly 11, 2025

The Oort Cloud is the most distant region in our solar system, and it’s jaw-droppingly far away, extending perhaps one-quarter to halfway from our Sun to the next star.To appreciate the distance to the Oort Cloud, it’s helpful to set aside miles and kilometers and instead use the astronomical unit, or AU — a unit […]

What Is a Black Hole? Origins, Physics & Discovery Explained

noor-e-aishaJuly 11, 2025

A black hole is a massive, compact astronomical object so dense that its gravity prevents anything—even light—from escaping. Albert Einstein’s theory of general relativity predicts that a sufficiently compact mass will form a black hole. The boundary beyond which nothing can escape is called the event horizon. While a black hole has a profound effect […]

Full Moon Tonight: July 10, 2025 – Meaning, Color, and Visibility Explained

noor-e-aishaJuly 10, 2025

Today, July 10, 2025, the Moon is in its Full Moon phase, one of the most visually striking lunar phases. During this phase, the entire face of the Moon that faces Earth is fully illuminated by the Sun, making it appear as a complete, bright circle in the night sky. This occurs because the Earth […]

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Category: Top Stories

History, Naming, and Discovery of Europa: Jupiter’s Mysterious Icy Moon

Ganymede: Largest Moon, Magnetic Field, Subsurface Ocean Facts

The Mysterious Planet Vulcan: Myth, Discovery Claims, and Disproof Explained

Theia and the Giant Impact Hypothesis: Origins of Earth’s Moon

Evidence and Search for Planet Nine: A Hypothetical Giant

Makemake: Dwarf Planet Discovery, Orbit, Surface, and Mythological Origins

Pluto: Facts About the Dwarf Planet in the Kuiper Belt

Oort Cloud Explained: Distance, Formation, Structure, and Comet Origins

What Is a Black Hole? Origins, Physics & Discovery Explained

Full Moon Tonight: July 10, 2025 – Meaning, Color, and Visibility Explained

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