NASA's Next Target: Earth

Hank Green introduces SciShow Space News, discussing NASA's upcoming launch of the Orbiting Carbon Observatory-2 (OCO-2) on July 1. OCO-2 will measure carbon dioxide levels globally, helping to understand carbon sinks and sources. The video explains the impact of CO2 on climate change and the role of carbon sinks like oceans and forests. OCO-2 will orbit Earth, making millions of measurements with its high-resolution spectrometers. The video also covers the solstice, explaining Earth's axial tilt and its effects on seasons. Finally, viewers are encouraged to support SciShow and explore more content.

What advancements does OCO-2 have over its predecessor, the OCO?

Describe the significance of the June solstice in relation to Earth's tilt.