We’ll be live with Cassini spacecraft experts at 4 p.m. EDT as they talk about the mission and its #GrandFinale dive into Saturn: http://go.nasa.gov/2jqv1Aj Have questions you want answered? Use #askNASA
We’ll be live with Cassini spacecraft experts at 4 p.m. EDT as they talk about the mission and its #GrandFinale dive into Saturn: http://go.nasa.gov/2jqv1Aj Have questions you want answered? Use #askNASA
