In Depth | Sun – NASA Solar System Exploration
The Sun is a 4.5 billion-year-old yellow dwarf star – a hot glowing ball of hydrogen and helium – at the center of our solar system. It’s about 93 million miles (150 million kilometers) from Earth …
In Depth | Our Solar System - NASA Solar System Exploration
Our solar system consists of our star, the Sun, and everything bound to it by gravity – the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; dwarf planets such as …
The Sun By the Numbers - NASA Solar System Exploration
3 天之前 · The Sun is the star at the heart of our solar system. Its gravity holds the solar system together, keeping everything – from the biggest planets to the smallest bits of debris – in its orbit.
The star nearest to the planet Earth is the sun. The sun’s diameter is 1.4 million kilometers and its distance from Earth is 150 million kilometers. But what do numbers that big really mean? To …
Genesis : Search for Origins | JPL | NASA
A History of Our Understanding of the Sun - A Closer Look. Pre-Twentieth Century Western Knowledge of the Sun. Ancient cultures, such as the Aztecs, the Mayans, the Hebrews, and …
Genesis : Search for Origins | JPL | NASA
The sun's energy is manifested in the form of short wavelength gamma rays, which can be regarded as tiny packets of energy called photons, the particle component of electromagnetic …
Comet Hale-Bopp - NASA Solar System Exploration
The comet did not pass particularly close to either the Sun or the Earth, but because of its rather large size, the comet was very bright and reached a peak magnitude of about -1. In fact, …
Planet Compare - NASA Solar System Exploration
3 天之前 · Explore NASA's real-time science encyclopedia and compare the sizes of planets in our solar system.
theory about the beginnings of the sun and planets. This theory explains that our solar system began as a spinning cloud of gas and dust about 4.5 billion years ago.
Impact Evidence: Meteor Crater and the Moon - NASA Solar …
2021年6月9日 · This activity uses melted crayons to create a beautiful piece of art that can hang in the window to let the Sun's light shine through. Create a Suncatcher Create a chalk drawing …