Question

It is extremely difficult to see a planet orbiting a distant star with an
optical telescope because the brightness of the star makes the planet almost
invisible. Which of the following forms of electromagnetic energy are
astronomers using to locate planets outside our solar system?

Select one:
a. infrared rays
b. microwaves
c. X-rays
d. gamma rays

Answer 1

@robby8974 @Voltage @90890908967777878888 @brooke_rogers1

Answer 2

I believe that it is a

Answer 3

Yeah just about to say that. Here is a resource site also.
http://www.ipac.caltech.edu/outreach/Edu/importance.html

Answer 4

thanks!!

Answer 5

srry