In Depth | Sun – NASA Solar System Exploration
The Sun formed about 4.6 billion years ago in a giant, spinning cloud of gas and dust called the solar nebula. As the nebula collapsed under its own gravity, it spun faster and flattened into a …
In Depth | Our Solar System – NASA Solar System Exploration
Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a …
In Depth | Europa – NASA Solar System Exploration
Jupiter’s large Galilean moons – Io, Europa, Ganymede, and Callisto – likely formed out of leftover material after Jupiter condensed from the initial cloud of gas and dust surrounding the …
Extensive studies conducted by NASA’s Jet Propulsion Laboratory (JPL) showed that NASA’s Cassini mission, given its science objectives, available launch systems, travel time to its …
About the Planets - NASA Solar System Exploration
May 28, 2025 · The first four planets from the Sun are Mercury, Venus, Earth, and Mars. These inner planets also are known as terrestrial planets because they have solid surfaces.
307 Temporary Redirect - NASA Solar System Exploration
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In Depth | Perseids – NASA Solar System Exploration
When comets come around the Sun, they leave a dusty trail behind them. Every year Earth passes through these debris trails, which allows the bits to collide with our atmosphere and …
The Sun formed from a swirling disk of gas and dust, billions of years ago. The planets and their orbits are remnants of that disk, formed from the leftover material that went into making the Sun.
Stardust / Stardust NExT - NASA Science
Nov 2, 2024 · The spacecraft was launched into a heliocentric orbit that would bring it around the Sun and past Earth for a gravity-assist maneuver to direct it to Wild 2 after a flyby of the minor …
Directory - NASA Solar System Exploration
In 2017 she and Dr. Mike Rogers became lead volunteers for Citizen CATE Team-040, one of the 68 national sites dedicated to taking photographs during totality to study the time evolution of …