to the Moon2, NASA’s Dawn mission that studied the protoplanets Ceres and Vesta in the asteroid belt between Mars and Jupiter16, and the Japanese Aerospace Exploration Agency’s Hayabusa1 and Hayabusa2 sample-return missions to the near-Earth asteroids 25143 Itokawa17and 162173 Ryugu18. As sp...
an area between Mars and Jupiter. Most known asteroids orbit within this area. The spacecraft will also observe seven Trojan asteroids. Scientists consider the Trojan asteroids to be the ancient remains of the formation of the solar system. They have stayed...
The Juno spacecraft is now in orbit around JupiterC. CrockettAccess Science
In a way, though, it might have come indirectly from Mercury, since the inner planet may have projected aubrites to the asteroid belt between Mars and Jupiter long ago. One of these might have just made its way to Earth, and that could account for the wide orbit...
NASA's Juno spacecraft in orbit above Jupiter's Great Red Spot is seen in this undated handout illustration obtained by Reuters Tuesday. By Steve Gorman LOS ANGELES (Reuters) - A NASA spacecraft in orbit around Jupiter began transmitting data and images on Tuesd...
Ceres is the smallest of the fivedwarf planetsbut is the largest object found in the asteroid belt between Mars and Jupiter. It is also the closest dwarf planet to the sun and is the only dwarf planet inside the orbit of Neptune and not in theKuiper belt. ...
Largest asteroid: Vesta, which is 330 miles (530 km) across. It is located in the asteroid belt between Mars and Jupiter. Largest dwarf planet: Pluto is the largest dwarf planet, with a diameter of 1,473 miles (2,370 km). It was once thought to be smaller than dwarf planet Eris, ...
Asteroids - often called minor planets - are small rocky bodies which mostly occupy the region of the Solar System lying between Mars and Jupiter. By 2009, over 420,000 asteroids had been discovered, of various shapes and sizes, though only 14,000 of them have been officially named. Asteroid...
An hour before sunrise on Monday (July 22), the planet Mars passes Jupiter. (Image credit: Starry Night Software) What will be most noticeable is the tremendous difference in size between the two planets. While both are on the far side of the sun, Mars is much closer than Jupiter. Even...
以lack of gases and ices做关键词定位至倒数第二句，这句话只是单纯说现象，最后一句才是解释，而且这句话刚才已经讲过，说由于距离太阳近，类地行星最终失去了这些气态物质，所以答案是A。其余答案均与本段首句说反。