Answer: We study other star systems in spaceships and big, professional telescopes
Answer:
The Shadow Zone Gets Smaller
Explanation:
Useful satellite data concerning sea ice began in late 1978 with the launch of NASA's Scanning Multichannel Microwave Radiometer (SMMR) satellite.
A. at least I think it is
Answer: See explanation.
Explanation:
Because Astronomers have well-tested theoretical models that explain how a star evolves over the course of its life as well as well-tested theoretical models that explain how a star evolves over the course of its life.
