Author Question: Some radioactive isotopes found in meteorites suggest that the solar system may have been formed ... (Read 76 times)

cherise1989 · **on:** Jul 27, 2018

Some radioactive isotopes found in meteorites suggest that the solar system may have been formed shortly after a supernova occurred nearby.

Indicate whether the statement is true or false

Question 2

In the eighteenth and nineteenth centuries, the rare transits of ________ were critical in determining the astronomical unit's length.

Fill in the blank(s) with correct word