Solar System
Discovering the current location of Voyager in interstellar space
Learn about the current location of Voyager 1 and 2, their distances from Earth, and how they navigate the harsh environment of interstellar space.
Solar System
Planets, the Sun, moons, asteroids and how our cosmic neighborhood works.
Solar System
How many natural satellites does the earth possess?
Explore Earth's celestial companions, from the permanent Moon to transient quasi-satellites and cosmic dust clouds located at Lagrange points.
Solar System
How many planets orbit the sun in second grade lessons
Learn how many planets orbit the sun and discover key facts about the eight official planets, from Mercury to Neptune, for students and educators.
Solar System
Finding the location of the Chelyabinsk meteorite impact
Discover where the Chelyabinsk meteorite landed, including details on the Lake Chebarkul fragment and the primary debris field in Russia.
Solar System
An overview of the functioning of the solar system
Explore how gravity and the Sun drive the movement of planets, moons, and asteroids within our solar system's complex orbital dynamics.
Solar System
Steps to achieve your dream of becoming an astronaut
Discover the essential educational, physical, and psychological requirements needed to pursue a career in space exploration and astronautics.
Solar System
The fall of the Tunguska meteorite: when and where it happened
Discover the details of the 1908 Tunguska event, including its Siberian location, explosion altitude, and the scientific theories regarding its origin.
Solar System
Understanding the movement of the sun across the sky
Explore why the Sun appears to move from east to west and how Earth's axial tilt and rotation create our daily cycles and seasonal changes.
Solar System
Understanding the movement of the sun in relation to the earth
Explore how Earth's rotation and orbital tilt create seasonal shifts, solar declination changes, and the unique figure-eight shape of the analemma.
Solar System
Understanding the complex movement of the sun
Explore how the Sun orbits the galactic center, rotates on its axis, and moves through the Milky Way at incredible speeds.
Solar System
Understanding the solar path and celestial mechanics
Explore how Earth's rotation and axial tilt create the illusion of the Sun's movement and define our seasonal cycles.
Solar System
A comprehensive guide to understanding Earth's crusts
Explore the differences between oceanic and continental crust, the mechanics of tectonic plates, and how mantle convection shapes our planet.
Solar System
Understanding what are the different surfaces of the Earth
Explore the diverse layers and structures of Earth, from the oceanic and continental crust to the tectonic plates and primary landforms.
Solar System
What characteristics does Saturn's internal composition possess?
Explore the layers of Saturn, from its hydrogen-helium atmosphere and metallic hydrogen shell to its dense core of iron, nickel, and ice.
Solar System
Understanding what does orbit the planets revolve around
Explore the gravitational mechanics of our solar system and learn why the eight planets revolve around the Sun in elliptical orbits.
Solar System
What is currently taking place in the online space?
Explore how digital feeds, live NASA streams, and real-time telemetry allow the public to observe the ISS and solar activities from Earth.
Solar System
Understanding the mechanics of what is solar time
Learn how solar time differs from mean solar time and why Earth's elliptical orbit causes fluctuations in our daily measurement of the Sun.
Solar System
Determining what is the age of the planet Earth
Discover how scientists use radiometric dating and meteorite analysis to determine that Earth is approximately 4.54 billion years old.
Solar System
What is the biggest solar system? Exploring planetary scales
Discover the massive scale of our solar system, from Jupiter's immense volume to the extreme temperatures found on Venus and Neptune.
Solar System
Understanding the science behind what is the color of Saturn
Discover why Saturn appears pale yellow and learn about its atmospheric composition, ring structure, and massive scale compared to Earth.
Solar System
What is the color of the picture of Saturn?
Discover why Saturn appears pale yellow to the eye and how chemical compositions like ammonia and phosphorus influence its visual spectrum.
Solar System
What is the farthest planet from Earth?
Discover why Neptune is the farthest planet from Earth and learn about its blue atmosphere, violent winds, and unique moons like Triton.
Solar System
Understanding what is the height of the Sun at its highest point?
Learn how solar altitude and the zenith affect the Sun's maximum height in the sky based on your latitude and the time of year.
Solar System
What is the name of the sun's outermost layer of atmosphere?
Discover why the solar corona is the Sun's outermost atmospheric layer and how its extreme temperatures drive the solar wind across our solar system.
Solar System
What is the number of satellites orbiting Saturn?
Saturn currently has 146 confirmed satellites, a count that increased significantly in 2023 following the discovery of 62 new moons.
Solar System
What is the number of satellites orbiting the planet Pluto?
Discover the five known moons of Pluto, including Charon, Nix, and Hydra, and learn about their unique orbital dynamics and physical compositions.
Solar System
Understanding planetary dimensions: What is the size of a planet?
Explore how planetary sizes vary from Mercury to Jupiter and learn why rotation causes planets to form oblate spheroids rather than perfect spheres.
Solar System
Understanding what is the temperature of the Earth
Explore Earth's thermal layers, from surface averages of 14.8°C to the 6000°C inner core, and how planetary heat compares to cosmic extremes.
Solar System
What is the title of the biggest asteroid in our solar system?
Discover why Vesta is considered the largest true asteroid and learn about the distinction between asteroids and dwarf planets like Ceres.
Solar System
What makes up the Earth's core? A look at its composition
Explore the chemical makeup and structure of the Earth's core, from the liquid outer layer to the solid inner nucleus and its magnetic field.
Solar System
Understanding the stages of twilight when the evening falls
Learn about the three stages of twilight and how solar angles and latitude affect the transition from daylight to astronomical night.
Solar System
Understanding when the sun reaches its highest point
Learn how Earth's axial tilt and latitude determine when the sun reaches its zenith and how solar altitude affects global seasons and temperatures.
Solar System
Where can we find the planet Ceres?
Discover where to find the dwarf planet Ceres in the asteroid belt and learn about its unique composition, orbital dynamics, and geological activity.
Solar System
Which planet has the highest number of satellites?
Discover which planet leads the solar system in moon counts, comparing Saturn's 82 satellites to Jupiter's 79 and exploring the characteristics of major moons.
Solar System
Which planet is closest to Earth and why does it change?
Discover why Venus is considered the closest planet to Earth while exploring how orbital mechanics cause distances to fluctuate between planets.
Solar System
Which planet is Enceladus a satellite of?
Discover why Enceladus is a significant moon of Saturn, featuring a subsurface ocean, active geysers, and high potential for habitability.
Solar System
Who are the astronauts currently in space in 2021?
Discover which astronauts and cosmonauts were aboard the ISS in 2021, including the unique crew members involved in the Challenge film mission.
Solar System
Calculating the Earth's mass: A complex task
Learn how scientists use the gravitational constant and orbital mechanics to determine Earth's mass of approximately 5.9722 x 10^24 kg.
Solar System
Biography of Russian cosmonaut Maxim Viktorovich Suraev
Explore the career of Maxim Viktorovich Suraev, a Russian Colonel and commander of two Soyuz missions to the International Space Station.
Solar System
What are the distinguishing features of asteroids?
Explore the unique compositional, structural, and orbital characteristics that distinguish asteroids from planets in our solar system.
Solar System
What is the composition of Uranus's atmosphere?
Explore the chemical makeup of Uranus, from its methane-driven blue color to its complex layers of hydrogen, helium, and deep cloud formations.
Solar System
What is the current location of the ISS and its orbit?
Learn about the International Space Station's current altitude, orbital velocity, and the technical details of its mission in low Earth orbit.
Solar System
What is the current number of satellites orbiting Jupiter in 2021?
Discover the count of Jupiter's 79 confirmed satellites, including the massive Galilean moons and their unique orbital characteristics.
Solar System
What is the fifth largest planet in terms of size?
Discover why Uranus is considered the fifth largest planet in our solar system and learn about its unique composition as an ice giant.
Solar System
Understanding what is the velocity of gravity
Explore whether gravity travels at the speed of light and how General Relativity and gravitational waves confirm its finite propagation speed.
Solar System
Which planet has two natural satellites?
Discover which planet possesses exactly two moons and learn about the unique characteristics of Mars' satellites, Phobos and Deimos.