We are not yet capable of detecting life on planets around other stars.But as our technology develops,our first real chance of detecting such life will probably come from
A)sending spacecraft to study the planets up close.
B)examining spectral lines from the atmospheres of distant planets.
C)examining high-resolution images of the planets made by orbiting telescopes.
D)determining the orbital properties of the planets.

Question

Quizplus · Accepted Answer

Examining spectral lines from the atmospheres of distant planets can provide information on the chemical composition of the atmosphere, which can reveal the presence of life, such as the presence of oxygen, methane, or other biological markers. This method has already been used to study the atmospheres of some exoplanets and will likely be one of the primary methods for detecting life on distant planets in the future. Options A, C, and D may provide useful information about the planets, but they may not necessarily reveal the presence of life.

We Are Not Yet Capable of Detecting Life on Planets