What are five ways in which people can explore and study space without physically going there?

1) use of telescopes

2) analysis of cosmic radiations

3) using doppler shift for stars.

4) analysis of background radio waves

5) use of geometry for predicting travel path of space materials.

c.is a substance that requires a small amount of energy per gram to raise its temperature; has strong cohesive forces between molecules.

explanation:

a colorless, transparent, odorless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

neither accurate nor precise.