";s:4:"text";s:5619:" The smallest planet in our solar system and nearest to the Sun, Mercury is only slightly larger than Earth's Moon. Depressions or Overall, about 15 impact basins have been identified on the imaged part of Mercury. This image from NASA’s Juno spacecraft captures several storms in Jupiter’s southern hemisphere. More specifically, the data gathered help to measure the amount of wobble in Mercury’s rotation. There is evidence that it is partly molten, or liquid.
Mercury has a solid, cratered surface, much like the Earth's moon.Mercury's thin atmosphere, or exosphere, is composed mostly of oxygen (O2), sodium (Na), hydrogen (H2), helium (He), and potassium (K). One of five planets visible with the naked eye a, … Ridges, or dorsa, are named for scientists who have contributed to the study of Mercury. Despite its proximity to the Sun, Mercury is not the hottest planet in our solar systemthat title belongs to nearby Venus, thanks to its dense atmosphere. It has a solid surface that is covered with craters like our Moon. A proposed mission called VERITAS seeks to transform our understanding of Venus.
Mercury's magnetic field is offset relative to the planet's equator. It is Mercury appears to have a solid silicate crust and mantle overlying a solid, iron sulfide outer core layer, a deeper liquid core layer, and a solid inner core.Mercury's density can be used to infer details of its inner structure.
One astronomical unit (abbreviated as AU), is the distance from the Sun to Earth. This site is among seven NASA sites nominated this year for a Webby. A device called SHERLOC will help the next Mars rover detect chemicals linked to the existence of life. Craters and features on Mercury are named after famous deceased artists, musicians or authors, including children's author Dr. Seuss and dance pioneer Alvin Ailey.Very large impact basins, including Caloris (960 miles or 1,550 kilometers in diameter) and Rachmaninoff (190 miles, or 306 kilometers in diameter), were created by asteroid impacts on the planet's surface early in the solar system's history. From our perspective on Earth, Mercury looked like a tiny black dot gliding across the Sun’s face.This only happens about 13 times a century.
Image Credit: NASA/USGS/JHUAPL They are formed when an asteroid or comet strikes the surface. Names coming from people are limited to the deceased. This site is maintained by the Planetary Science Communications team at
The tremendous amount of energy that is released in such an impact digs a big hole in the ground, and also crushes a huge amount of rock under the point of impact. This allows the planet to be found easily, even when using telescopes with 8 cm (3.1 in) apertures. NASA's Perseverance Mars rover has been attached to the rocket that will send it to the Red Planet this summer. Mercury doesn't really have an atmosphere. Earth is called the Blue Planet because the amount of water on the Earth's surface makes it look blue from space.
You may be able to help Curiosity rover drivers better navigate Mars using the online tool AI4Mars to label terrain features. Research published in 2007 suggests that Mercury has a molten core.Mercury's core has a higher iron content than that of any other major planet in the Solar System, and several theories have been proposed to explain this. https://www.nationalgeographic.com/science/space/solar-system/mercury Atoms that are blasted off the surface by the solar wind and micrometeoroid impacts create Mercury's exosphere.No evidence for life has been found on Mercury. Mercury is the smallest planet in our solar system. It’s a little bigger than Earth’s Moon.
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