About
About Universe & Planets
Explore Space. Understand the Universe.
Universe & Planets is an interactive astronomy education website where students, families, teachers, space enthusiasts, and curious visitors can explore planets, follow space missions, use astronomy tools, and learn about the universe through clear explanations and visual experiences.
Space can feel distant and complicated. Our goal is to bring it closer through understandable explanations, engaging visuals, astronomical data, and interactive tools that allow visitors to explore instead of simply reading.
Whether someone is studying the solar system, planning a night of skywatching, following a spacecraft, or discovering astronomy for the first time, Universe & Planets provides an enjoyable place to begin.
Our Mission
Our mission is to make astronomy and space science easier to explore, understand, and enjoy.
Complex topics are presented in clear language and supported by interactive maps, simulations, calculators, images, and visual explanations. The website is designed to encourage curiosity, discovery, and continued learning without requiring advanced scientific knowledge.
What You Can Explore
The Solar System
Explore Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Learn about each planet's size, temperature, atmosphere, moons, orbit, surface, and other important characteristics. Start with our overview to explore the planets of the Solar System.
Tonight's Sky
Discover planets, the Moon, stars, and other objects that may be visible from a selected location and time. Visibility depends on location, date, weather, viewing conditions, and available astronomical data. Use our sky viewer to see what is visible in tonight's sky.
Live Space Tools
Follow the International Space Station, check upcoming passes, and explore calculated spacecraft positions and journeys through the solar system. Try our live ISS Tracker and Pass Predictor, the Live Deep-Space Mission Explorer, or plan a route in the Drive the Mars Rover simulation. The rover simulation is an educational experience, not control of a real spacecraft.
Interactive Calculators
Explore how weight and age would change across the solar system. Compare planets and learn how gravity, orbital periods, distance, and size differ from one world to another. Use the tools to calculate weight on other planets, calculate age on other planets, or compare planet sizes.
Stars, Galaxies, and Black Holes
Learn how stars are born, how they change over time, how galaxies are classified, and what happens near some of the most extreme objects in the universe on our Stars & Galaxies page and the Black Holes page.
Space Missions
Explore the spacecraft, rovers, telescopes, and discoveries that have expanded human knowledge of space in our space missions journey. Mission experiences combine documented facts with visual explanations designed for exploration and learning.
Learning Through Exploration
Universe & Planets goes beyond traditional articles. Interactive experiences allow visitors to investigate astronomical ideas directly.
Visitors can follow spacecraft, examine planetary distances, compare worlds, plan simulated rover routes, explore mission timelines, and see how astronomical results change based on time and location.
Each tool clearly identifies whether information is:
- Based on officially published data
- Calculated from astronomical data
- Estimated
- Visually adjusted for exploration
- Part of an educational simulation
Simulations are never presented as control of real spacecraft or as actual mission operations.
Accuracy and Transparency
Scientific accuracy and transparency are important to Universe & Planets. Information is developed using trusted sources such as NASA, the Jet Propulsion Laboratory, recognized scientific organizations, and established astronomical data services.
Space information can change as new discoveries are made and missions publish updated results. Live or location-based results may also be delayed, estimated, cached, or temporarily unavailable. Relevant tools display data timestamps, source information, limitations, and simulation labels when appropriate.
When planets, spacecraft, or distances are shown together, their sizes and spacing may be visually adjusted so visitors can see and explore them more easily. These presentations should not be understood as one common physical scale unless specifically stated.
Designed for Everyone
Universe & Planets is designed for visitors of different ages, backgrounds, and levels of astronomy knowledge.
The website aims to provide:
- Clear and understandable explanations
- Responsive experiences for desktop, tablet, and mobile devices
- Keyboard-accessible controls
- Reduced-motion support
- Clear labels and readable text
- Alternatives when advanced 3D graphics are unavailable
- Educational experiences that do not require an account
Our Vision
Our long-term vision is to create an online space-learning destination where anyone can explore the universe, understand space missions, use helpful astronomy tools, and develop a deeper interest in science.
New tools, visual experiences, mission information, and educational articles will continue to be added as the project grows.
Independent Educational Project
UniverseAndPlanets.com is an independent educational website.
The website is not affiliated with, endorsed by, or sponsored by NASA, the Jet Propulsion Laboratory, the United States government, or any other space agency. NASA and mission names, imagery, data, trademarks, and related materials belong to their respective owners and are credited where required.
Join the Journey
The universe contains more worlds, discoveries, and mysteries than any single website could fully cover. Universe & Planets is a place to begin that journey.
Explore the planets, follow space missions, look into the night sky, and continue discovering what exists beyond Earth.