Planets – Utopedia

The Chandrasekhar Limit

Every star has a destiny written in its mass.Some fade gently into white dwarfs.Others collapse into black holes.And between these two fates lies a cosmic boundary — the Chandrasekhar Limit.…

Exoplanets

55 Cancri e

Category: Extreme Worlds | Discovered by NASA’s Spitzer & Other Observatories A World That Sparkles in Theory Imagine a planet where mountains might glitter, where the crust could be rich…

Exoplanets

At 2.4 times Earth’s radius, Kepler-22b sits in a curious category between rocky and gaseous worlds. Astronomers call these “super-Earths” or “mini-Neptunes,” planets that may possess thick atmospheres or vast global oceans.

Exoplanets

TOI-700 d

In early 2020, NASA’s Transiting Exoplanet Survey Satellite (TESS) quietly made history. Among thousands of worlds it was scanning, it found a small, rocky planet orbiting a dim red-dwarf star about 100 light-years away in the southern constellation Dorado.

Astronomy & Space

White Dwarf Stars

When stars die, they don’t all go out in a blaze of glory. Some fade away — quietly, beautifully — leaving behind a glowing core that tells the story of…

Astronomy & Space

Kepler’s Laws of Planetary Motion — Simplified

An ellipse is like a stretched circle. Imagine a circle squeezed sideways — that’s an ellipse. An ellipse has two foci. The Sun sits at one, and the other is empty space. Planets are not moving in perfect circles; their distance to the Sun changes as they orbit.

Astronomy & Space

Einstein’s Theory of Relativity: A Simple Guide

What is Relativity? Einstein's theory of relativity is like discovering that everything you thought you knew about the world is only part of the story. It's actually two theories that…

Astronomy & Space

What is the Universe?

Imagine you’re sitting in your bedroom. Everything in that room — the chair, your phone, your heartbeat, even the dust floating in the air — is part of your room-verse. Now expand it: add your house, your street, your city, the Earth, the stars, galaxies — keep going. That totality is the universe.