CURRENT AFFAIRS

2018

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following spacecraft that orbited the two largest objects in the asteroid belt completed its mission?
A
Juno
B
Dawn
C
Insight
D
Opportunity
Explanation: 

Detailed explanation-1: -In 2011, when Dawn arrived at Vesta, the second-largest world in the main asteroid belt, the spacecraft became the first to orbit a body in the region between Mars and Jupiter.

Detailed explanation-2: -The four largest asteroids in the belt are called Ceres, Vesta, Pallas, and Hygiea. These large asteroids make up about half of the mass of the entire asteroid belt. Scientists like to say that if you combined all of these rocky asteroids together, it would make a planet a bit smaller than Earth’s moon.

Detailed explanation-3: -The largest body in the asteroid belt, Ceres has amassed a number of references in science fiction stories of the 20th and 21st centuries. In the TV series “The Expanse, ” Ceres is inhabited by humans, and in the PC Game Descent, one of the secret levels takes place on Ceres.

Detailed explanation-4: -NASA’s Dawn mission, which launched in 2007, sought to characterize the processes that dominated early solar system evolution. To build a detailed picture of those early days, Dawn visited two time capsules of the solar system–Vesta and Ceres, the largest bodies of the main asteroid belt.

There is 1 question to complete.