In Depth | Earth – NASA Solar System Exploration
While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface. Just slightly larger than nearby Venus, Earth is the …
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 …
In Depth | Earth's Moon – NASA Solar System Exploration
The brightest and largest object in our night sky, the Moon makes Earth a more livable planet by moderating our home planet's wobble on its axis, leading to a relatively stable climate. It also …
Planet Compare - NASA Solar System Exploration
2025年1月9日 · NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
Galileo Venus Flyby - NASA Solar System Exploration
The Venus flyby geometry was designed to swing the spacecraft back to Earth on December 8, 1990, for a 600-mile flyby angled to put Galileo in a two-year elliptical orbit around the Sun, …
35th Anniversary of the Voyager 1 Saturn Flyby
2015年11月9日 · The Cassini probe was designed to explore Saturn’s atmosphere, rings, magnetosphere, and moons. It has successfully found geysers on Saturn’s moon Enceladus, …
Tiny Asteroid Buzzes by Earth - the Closest Flyby on Record
2020年8月18日 · Asteroid 2020 QG enters the record books as the closest known nonimpacting asteroid; many very small asteroids impact our planet every year, but only a few have actually …
10 Things in Space That Come in Twos - NASA Solar System …
2022年2月18日 · NASA’s twin Voyager 1 and 2 spacecraft are exploring where nothing from Earth has gone before. Launched in 1977, each probe is much farther away from Earth and the Sun …
Measuring a Day – NASA Solar System Exploration
2016年11月2日 · If they measured precisely enough, they would find that Earth rotates once per 23.934 hours. That's Earth's rotation rate — the very definition of a day. Using the same …
NASA Planetary Science Highlights: 2021 - NASA Solar System …
2021年12月23日 · OSIRIS-REx started its journey back to Earth with precious cargo, and two new asteroid missions – Lucy and DART – launched to the skies. Here’s the 2021 round-up of …