In Depth | Our Solar System – NASA Solar System Exploration
网页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 Pluto; dozens of moons; and millions of asteroids, comets, and meteoroids. Beyond our own solar system, there are more planets than stars in the night sky.
About Us - NASA Solar System Exploration
网页2024年10月1日 · We provide the public with reliable, accurate, up-to-date information about the planets, moons, asteroids, comets and everything else in our solar system. We also provide a complete historical record of deep space exploration.
NASA Planetary Science Highlights: 2021 - NASA Solar System …
网页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 NASA planetary science, highlighting the year’s most spectacular images, the most ground-breaking discoveries, and the most incredible mission milestones.
10 Things to Expect in Planetary Science for 2021
网页2021年1月28日 · Sending the first Artemis mission to the Moon in preparation for human missions, landing a new rover on Mars, and launching the James Webb Space Telescope into space, expanding our ability to see deep into the universe, are just a few of the things NASA has planned for 2021.
Overview | Cassini – NASA Solar System Exploration
网页Cassini carried a passenger to the Saturn system, the European —the first human-made object to land on a world in the distant outer solar system. After 20 years in space — 13 of those years exploring Saturn — Cassini exhausted its fuel supply.
In Depth | Sun – NASA Solar System Exploration
网页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 and it’s our solar system’s only star. Without the Sun’s energy, life as we know it could not exist on our home planet.
Overview | The Grand Finale – NASA Solar System Exploration
网页In April 2017, NASA's Cassini spacecraft began writing the final, thrilling chapter of its remarkable 20-year-long story of exploration: its Grand Finale. Every week, Cassini dived through the approximately 1,200-mile-wide (2,000 …
About | Science Goals – NASA Solar System Exploration
网页2010年3月11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.
What is a Planet? | Planets – NASA Solar System Exploration
网页A planet is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.
In Depth – NASA Solar System Exploration
网页Following a successful launch of NASA’s Space Launch System (SLS), the most powerful rocket in the world, the agency’s Orion spacecraft is on its way to the Moon. Artemis I Mega Rocket Launches Orion to Moon