SOLAR SYSTEM

UNIVERSE

METEORITES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Stardust-In the early 1990s, NASA established a program called Discovery and stardust was the 4th Discovery mission it ____
A
sent a spacecraft to fly through the cloud of dust that surrounds the nucleus of a comet. For the 1st time ever, the mission brought cometary material back to Earth.
B
sent a spacecraft to fly through the cloud of dust that surrounds the coma of a comet. For the 1st time ever, the mission brought cometary material back to Earth.
C
sent a spacecraft to fly through the cloud of dust that surrounds the nucleus of a comet. For the 1st time ever, the mission brought sedementary material back to Earth.
D
None of the above
Explanation: 

Detailed explanation-1: -Stardust was a 385-kilogram robotic space probe launched by NASA on 7 February 1999.

Detailed explanation-2: -Stardust grains (also called presolar grains by meteoriticists) are contained within meteorites, from which they are extracted in terrestrial laboratories. Stardust was a component of the dust in the interstellar medium before its incorporation into meteorites.

Detailed explanation-3: -Originally in an orbit in the region between Jupiter and Uranus (4.9 to 25 AU), its orbit was altered by a close pass by Jupiter on 10 September 1974. It now orbits between Mars and Jupiter (1.58 to 5.2 AU).

There is 1 question to complete.