VOA慢速英语:美国宇航局航天器近距离研究太阳

approach - n. to move or become near or nearer to something or someone

boost - n. to increase the force, power, or amount of (something)

ceramic - adj. made of clay that has been heated to a very high temperature so that it becomes hard

characterize - v. to describe the character or special qualities of (someone or something)

foam - n. a soft material that is used to make many products

probe - n. a device that is used to obtain information from outer space and send it back to Earth

solar - adj. of or relating to the sun