NASA | DNA Building Blocks Can Be Made in Space

Mike Callahan, a NASA scientist, discusses the discovery of nucleobases in meteorites, suggesting their extraterrestrial origin. The research presents three key reasons: the presence of nuclear base analogs, differences between meteorite and terrestrial samples, and lab-simulated hydrogen cyanide reactions. These findings imply that meteorites could have contributed essential molecules for life on early Earth.

What is the significance of nucleobases found in meteorites according to the research?

Describe the three reasons that support the claim that nucleobases in meteorites are extraterrestrial.

Explain the difference between nucleobases and nuclear base analogs as mentioned in the research.

How do the laboratory studies of hydrogen cyanide relate to the findings of nucleobases?

What implications do the findings about nucleobases have for the origin of life on Earth?