Presentation by Dr. Jim Green in Chicago

NASA's InSight spacecraft, its heat shield and its parachute were imaged on Dec. 6 and 11 by the HiRISE camera onboard NASA's Mars Reconnaissance Orbiter.

Dawn's launch vehicle is a variant of the Delta II known as a Delta 2925H.

A diagram of the Dawn spacecraft from 2006.

A labeled diagram of the Dawn spaccraft.

A 2007 guide to the Dawn mission launch to explore Vesta and Ceres.

A 2011 guide to the Dawn spacecraft's arrival at Vesta.

A 2015 guide to the Dawn spacecraft's arrival at Ceres.

This mosaic image of asteroid Bennu is composed of 12 PolyCam images collected on Dec. 2 by the OSIRIS-REx spacecraft.

This illustration shows the position of NASA's Voyager 1 and Voyager 2 probes, outside of the heliosphere, a protective bubble created by the Sun that extends well past the orbit of Pluto. Voyager ...

One of InSight's 7-foot (2.2 meter) wide solar panels seen from the lander's Instrument Deployment Camera.

A partial view of the deck of NASA's InSight lander, where it stands on the Martian plains Elysium Planitia. The image was received on Dec. 4, 2018 (Sol 8).

InSight's instrument deck and Elysium Planitia as seen from the spacecraft's robotic-arm mounted camera.

A composite image of MU69 taken a month before New Horizon's Jan. 1, 2019 flyby.

My name is Mana. Europa is my favorite It is that it is one of the very few places in our solar system that could potentially have life.

Hello, my name is Janelle. I think the best topic is number 2, Titan.

Hi, Everyone! My name's Morgan. My favorite topic is Enceladus.

Welcome to the Scientist for a Day 2018-2019 essay contest.

A Delta II-Heavy rocket propelled NASA's Dawn spacecraft into space on its journey to the asteroid belt. 

This series of images taken by the OSIRIS-REx spacecraft shows asteroid Bennu in one full rotation from about  50 miles (80 km).

Bennu's Journey is a 6-minute animated movie about NASA's OSIRIS-REx mission, asteroid Bennu, and the formation of our solar system.

This series of images from NASA's Juno spacecraft captures changing cloud formations across Jupiter's southern hemisphere. A cloud in the shape of a dolphin appears to be swimming through the cloud...

Pre-landing press kit for NASA's Mars InSight mission.

Pre-launch press kit for NASA's Mars InSight mission.

Jezero Crater is the landing site for NASA's Mars 2020 rover.

The University of Arizona's commemorative poster celebrating OSIRIS-REx's arrival at asteroid Bennu in December 2018.