The Caloris Basin, also called Caloris Planitia, is a about 1,550 km (963 mi) in diameter.
Mercury
Caloris basin is found on the planet Mercury. It is one of the largest impact basins in the Solar System, measuring over 1,500 kilometers in diameter. The basin was created by a large asteroid impact early in Mercury's history.
The Caloris Basin on Mercury is one of the largest impact craters in the solar system, spanning about 960 miles (1,550 kilometers) in diameter. It was formed by a huge asteroid impact early in the planet's history.
I think the answer is the "Caloris Basin".
The main crater is Caloris Basin.
Caloris Basin is located on the planet Mercury. It is one of the largest impact basins in the Solar System, measuring approximately 960 miles (1,550 km) in diameter.
Mercury doesn't have many geographically distinct features but it does have a feature called the Caloris Basin. The Caloris Basin is one of the largest meteor impact basins in the Solar System. It measures at about 1,550 kilometers or 960 miles in diameter. Since the Caloris Basin is the largest feature on Mercury it is also it's longest.
Caloris Basin I think is the deepest and the youngest too.
The Caloris Basin on Mercury was named by scientists after the Latin word for "heat," due to the extreme temperature variations that occur on the planet's surface. This large impact basin is one of the most prominent features on Mercury and was discovered during the Mariner 10 mission in the 1970s.
The Caloris Basin is a large impact crater found on the planet Mercury, 963 miles in diameter. Its one of the largest craters in the solar system.
Some of the notable craters on Mercury include names like Shakespeare, Beethoven, Debussy, and Caloris. Caloris Basin is one of the largest and most well-known craters on Mercury.
The Caloris Basin on Mercury is certainly one of the largest impact craters in the Solar System. As to the largest in the Milky Way - you'll just have to wait and see.